TY  - JOUR
AU  - Radović, Andrija
AU  - Carević, Vedran
AU  - Marinković, Snežana
AU  - Plavšić, Jasna
AU  - Tešić, Ksenija
PY  - 2024
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3461
AB  - The efficient way to mitigate the impact of the concrete industry on climate change is to reduce the clinker content in the concrete mix. Beside incorporating supplementary cementitious materials (SCMs), it is possible to use high filler content combined with concrete mix optimisation. Limestone powder emerges as a promising filler mineral due to its availability and ready-to-use technology. In this work, the carbonation resistance of concrete with a high limestone powder content (45–65% of the powder phase) was experimentally tested. Test results showed that, with an optimized mix design featuring low water content and increased paste and plasticizer volume, concrete mixes satisfied high workability and strength demands for commonly applied strength classes. However, carbonation resistance remains a challenge. After two years in indoor natural conditions, carbonation depths were 8%, 28%, and 67% greater than referent Portland cement concrete for mixes with 47%, 58%, and 65% limestone powder content, respectively. Further analyses showed the inapplicability of the existing fib Model Code 2010 service life prediction model to limestone powder concrete. Based on a comprehensive database of experimental results, the modification of the fib prediction was proposed. A full probabilistic service life analysis revealed that for concrete with more than 20% limestone powder content and for both 50 and 100-years’ design service life, the currently prescribed concrete cover depths in European standards should be increased, depending on the carbonation exposure class.
PB  - Elsevier Ltd
T2  - Journal of Building Engineering
T1  - Prediction model for calculation of the limestone powder concrete carbonation depth
SP  - 108776
DO  - 10.1016/j.jobe.2024.108776
ER  - 

@article{
author = "Radović, Andrija and Carević, Vedran and Marinković, Snežana and Plavšić, Jasna and Tešić, Ksenija",
year = "2024",
abstract = "The efficient way to mitigate the impact of the concrete industry on climate change is to reduce the clinker content in the concrete mix. Beside incorporating supplementary cementitious materials (SCMs), it is possible to use high filler content combined with concrete mix optimisation. Limestone powder emerges as a promising filler mineral due to its availability and ready-to-use technology. In this work, the carbonation resistance of concrete with a high limestone powder content (45–65% of the powder phase) was experimentally tested. Test results showed that, with an optimized mix design featuring low water content and increased paste and plasticizer volume, concrete mixes satisfied high workability and strength demands for commonly applied strength classes. However, carbonation resistance remains a challenge. After two years in indoor natural conditions, carbonation depths were 8%, 28%, and 67% greater than referent Portland cement concrete for mixes with 47%, 58%, and 65% limestone powder content, respectively. Further analyses showed the inapplicability of the existing fib Model Code 2010 service life prediction model to limestone powder concrete. Based on a comprehensive database of experimental results, the modification of the fib prediction was proposed. A full probabilistic service life analysis revealed that for concrete with more than 20% limestone powder content and for both 50 and 100-years’ design service life, the currently prescribed concrete cover depths in European standards should be increased, depending on the carbonation exposure class.",
publisher = "Elsevier Ltd",
journal = "Journal of Building Engineering",
title = "Prediction model for calculation of the limestone powder concrete carbonation depth",
pages = "108776",
doi = "10.1016/j.jobe.2024.108776"
}

Radović, A., Carević, V., Marinković, S., Plavšić, J.,& Tešić, K.. (2024). Prediction model for calculation of the limestone powder concrete carbonation depth. in Journal of Building Engineering
Elsevier Ltd., 108776.
https://doi.org/10.1016/j.jobe.2024.108776

Radović A, Carević V, Marinković S, Plavšić J, Tešić K. Prediction model for calculation of the limestone powder concrete carbonation depth. in Journal of Building Engineering. 2024;:108776.
doi:10.1016/j.jobe.2024.108776 .

Radović, Andrija, Carević, Vedran, Marinković, Snežana, Plavšić, Jasna, Tešić, Ksenija, "Prediction model for calculation of the limestone powder concrete carbonation depth" in Journal of Building Engineering (2024):108776,
https://doi.org/10.1016/j.jobe.2024.108776 . .

TY  - JOUR
AU  - Carević, Vedran
AU  - Marinković, Snežana
AU  - Plavšić, Jasna
AU  - Radović, Andrija
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3334
AB  - One of the paths to CO2 emissions reduction in the concrete industry is to use low-clinker cements, providing at the same time the performance of concrete that is adequate for application in concrete structures. This paper explores the impact of the clinker replacement with high amounts of limestone powder (21–70% in the powder phase) on concrete carbonation resistance. To quantify this impact, the empirical relationship between the carbonation resistance and the compressive strength of the high-volume limestone powder concrete (HVLPC) was established. For that pur-pose, the regression analysis was applied on the experimental results collected from the published research. The service life analysis based on the full probabilistic approach was performed using the fib Model Code 2010 prediction model and proposed empirical relationship. The first-order relia-bility method (FORM) was applied to solve the limit state function of reinforcement depassivation with a reliability index equal to 1.3. The obtained minimum concrete cover depths were 40–110% higher compared to those prescribed in the current European standard EN 1992-1-1:2004 for in-dicative strength classes. Based on the full probabilistic analysis, recommended cover depths are given for all carbonation exposure classes, commonly applied concrete strength classes, and service lives of 50 and 100 years.
PB  - MDPI, Basel, Switzerland
T2  - Buildings
T1  - Service Life Design of Concrete Structures Made of High-Volume Limestone Powder Concrete—Case of the Carbonation-Induced Corrosion
IS  - 12
SP  - 3112
VL  - 13
DO  - 10.3390/buildings13123112
ER  - 

@article{
author = "Carević, Vedran and Marinković, Snežana and Plavšić, Jasna and Radović, Andrija",
year = "2023",
abstract = "One of the paths to CO2 emissions reduction in the concrete industry is to use low-clinker cements, providing at the same time the performance of concrete that is adequate for application in concrete structures. This paper explores the impact of the clinker replacement with high amounts of limestone powder (21–70% in the powder phase) on concrete carbonation resistance. To quantify this impact, the empirical relationship between the carbonation resistance and the compressive strength of the high-volume limestone powder concrete (HVLPC) was established. For that pur-pose, the regression analysis was applied on the experimental results collected from the published research. The service life analysis based on the full probabilistic approach was performed using the fib Model Code 2010 prediction model and proposed empirical relationship. The first-order relia-bility method (FORM) was applied to solve the limit state function of reinforcement depassivation with a reliability index equal to 1.3. The obtained minimum concrete cover depths were 40–110% higher compared to those prescribed in the current European standard EN 1992-1-1:2004 for in-dicative strength classes. Based on the full probabilistic analysis, recommended cover depths are given for all carbonation exposure classes, commonly applied concrete strength classes, and service lives of 50 and 100 years.",
publisher = "MDPI, Basel, Switzerland",
journal = "Buildings",
title = "Service Life Design of Concrete Structures Made of High-Volume Limestone Powder Concrete—Case of the Carbonation-Induced Corrosion",
number = "12",
pages = "3112",
volume = "13",
doi = "10.3390/buildings13123112"
}

Carević, V., Marinković, S., Plavšić, J.,& Radović, A.. (2023). Service Life Design of Concrete Structures Made of High-Volume Limestone Powder Concrete—Case of the Carbonation-Induced Corrosion. in Buildings
MDPI, Basel, Switzerland., 13(12), 3112.
https://doi.org/10.3390/buildings13123112

Carević V, Marinković S, Plavšić J, Radović A. Service Life Design of Concrete Structures Made of High-Volume Limestone Powder Concrete—Case of the Carbonation-Induced Corrosion. in Buildings. 2023;13(12):3112.
doi:10.3390/buildings13123112 .

Carević, Vedran, Marinković, Snežana, Plavšić, Jasna, Radović, Andrija, "Service Life Design of Concrete Structures Made of High-Volume Limestone Powder Concrete—Case of the Carbonation-Induced Corrosion" in Buildings, 13, no. 12 (2023):3112,
https://doi.org/10.3390/buildings13123112 . .

TY  - JOUR
AU  - Luković, Mladena
AU  - Budnik, Bartosz
AU  - Dragaš, Jelena
AU  - Carević, Vedran
AU  - Ignjatović, Ivan
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3230
AB  - Strain Hardening Cementitious Composite (SHCC) is an innovative type of fibre-reinforced cement-based composite that has superior tensile properties. Because of this, it holds the potential to enhance the shear capacity of reinforced concrete (RC) beams, if applied properly. This paper presents the general and distinctive properties of SHCC as well as a literature review of topics related to the contribution of SHCC layers to the shear resistance of RC beams with and without shear reinforcement. Based on the analysed results, it is concluded that the main characteristics of SHCC are its microcracking behaviour, high ductility, and increased tensile strength (between 2 and 8 MPa) at large deformations. When used in structural elements, SHCC develops multiple parallel cracks compared to concentrated cracks in conventionally reinforced concrete. The biggest disadvantage of SHCC is its significant drying shrinkage. Although showing high variability, using SHCC as laminates with a thickness of 10 mm improves the shear capacity of hybrid RC beams, but debonding of interfaces in a hybrid system occurs in some cases.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije (DIMK)
PB  - Univerzitet u Beogradu, Građevinski fakultet
PB  - Društvo građevinskih konstruktera Srbije
T2  - Building Materials and Structures
T1  - Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams
EP  - 155
IS  - 3
SP  - 145
VL  - 66
DO  - 10.5937/GRMK2300006L
ER  - 

@article{
author = "Luković, Mladena and Budnik, Bartosz and Dragaš, Jelena and Carević, Vedran and Ignjatović, Ivan",
year = "2023",
abstract = "Strain Hardening Cementitious Composite (SHCC) is an innovative type of fibre-reinforced cement-based composite that has superior tensile properties. Because of this, it holds the potential to enhance the shear capacity of reinforced concrete (RC) beams, if applied properly. This paper presents the general and distinctive properties of SHCC as well as a literature review of topics related to the contribution of SHCC layers to the shear resistance of RC beams with and without shear reinforcement. Based on the analysed results, it is concluded that the main characteristics of SHCC are its microcracking behaviour, high ductility, and increased tensile strength (between 2 and 8 MPa) at large deformations. When used in structural elements, SHCC develops multiple parallel cracks compared to concentrated cracks in conventionally reinforced concrete. The biggest disadvantage of SHCC is its significant drying shrinkage. Although showing high variability, using SHCC as laminates with a thickness of 10 mm improves the shear capacity of hybrid RC beams, but debonding of interfaces in a hybrid system occurs in some cases.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije (DIMK), Univerzitet u Beogradu, Građevinski fakultet, Društvo građevinskih konstruktera Srbije",
journal = "Building Materials and Structures",
title = "Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams",
pages = "155-145",
number = "3",
volume = "66",
doi = "10.5937/GRMK2300006L"
}

Luković, M., Budnik, B., Dragaš, J., Carević, V.,& Ignjatović, I.. (2023). Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams. in Building Materials and Structures
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije (DIMK)., 66(3), 145-155.
https://doi.org/10.5937/GRMK2300006L

Luković M, Budnik B, Dragaš J, Carević V, Ignjatović I. Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams. in Building Materials and Structures. 2023;66(3):145-155.
doi:10.5937/GRMK2300006L .

Luković, Mladena, Budnik, Bartosz, Dragaš, Jelena, Carević, Vedran, Ignjatović, Ivan, "Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams" in Building Materials and Structures, 66, no. 3 (2023):145-155,
https://doi.org/10.5937/GRMK2300006L . .

TY  - JOUR
AU  - Luković, Mladena
AU  - Budnik, Bartosz
AU  - Dragaš, Jelena
AU  - Carević, Vedran
AU  - Ignjatović, Ivan
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3160
AB  - Strain Hardening Cementitious Composite (SHCC) is an innovative type of fibrereinforced
cement-based composite that has superior tensile properties. Because 
of this, it holds the potential to enhance the shear capacity of reinforced concrete 
(RC) beams, if applied properly. This paper presents the general and distinctive 
properties of SHCC as well as a literature review of topics related to the contribution 
of SHCC layers to the shear resistance of RC beams with and without shear 
reinforcement. Based on the analysed results, it is concluded that the main 
characteristics of SHCC are its microcracking behaviour, high ductility, and 
increased tensile strength (between 2 and 8 MPa) at large deformations. When used 
in structural elements, SHCC develops multiple parallel cracks compared to 
concentrated cracks in conventionally reinforced concrete. The biggest 
disadvantage of SHCC is its significant drying shrinkage. Although showing high 
variability, using SHCC as laminates with a thickness of 10 mm improves the shear 
capacity of hybrid RC beams, but debonding of interfaces in a hybrid system occurrs 
in some cases.
PB  - Faculty of Civil Engineering, University of Belgrade
PB  - Society for Materials and Structures Testing of Serbia
PB  - Association of Structural Engineers of Serbia
T2  - Building materials and structures
T1  - Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams
IS  - Article 2300006L in press
VL  - 66
DO  - 10.5937/GRMK2300006L
ER  - 

@article{
author = "Luković, Mladena and Budnik, Bartosz and Dragaš, Jelena and Carević, Vedran and Ignjatović, Ivan",
year = "2023",
abstract = "Strain Hardening Cementitious Composite (SHCC) is an innovative type of fibrereinforced
cement-based composite that has superior tensile properties. Because 
of this, it holds the potential to enhance the shear capacity of reinforced concrete 
(RC) beams, if applied properly. This paper presents the general and distinctive 
properties of SHCC as well as a literature review of topics related to the contribution 
of SHCC layers to the shear resistance of RC beams with and without shear 
reinforcement. Based on the analysed results, it is concluded that the main 
characteristics of SHCC are its microcracking behaviour, high ductility, and 
increased tensile strength (between 2 and 8 MPa) at large deformations. When used 
in structural elements, SHCC develops multiple parallel cracks compared to 
concentrated cracks in conventionally reinforced concrete. The biggest 
disadvantage of SHCC is its significant drying shrinkage. Although showing high 
variability, using SHCC as laminates with a thickness of 10 mm improves the shear 
capacity of hybrid RC beams, but debonding of interfaces in a hybrid system occurrs 
in some cases.",
publisher = "Faculty of Civil Engineering, University of Belgrade, Society for Materials and Structures Testing of Serbia, Association of Structural Engineers of Serbia",
journal = "Building materials and structures",
title = "Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams",
number = "Article 2300006L in press",
volume = "66",
doi = "10.5937/GRMK2300006L"
}

Luković, M., Budnik, B., Dragaš, J., Carević, V.,& Ignjatović, I.. (2023). Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams. in Building materials and structures
Faculty of Civil Engineering, University of Belgrade., 66(Article 2300006L in press).
https://doi.org/10.5937/GRMK2300006L

Luković M, Budnik B, Dragaš J, Carević V, Ignjatović I. Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams. in Building materials and structures. 2023;66(Article 2300006L in press).
doi:10.5937/GRMK2300006L .

Luković, Mladena, Budnik, Bartosz, Dragaš, Jelena, Carević, Vedran, Ignjatović, Ivan, "Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams" in Building materials and structures, 66, no. Article 2300006L in press (2023),
https://doi.org/10.5937/GRMK2300006L . .

TY  - JOUR
AU  - Marinković, Matija
AU  - Radović, Andrija
AU  - Carević, Vedran
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3144
AB  - Recently, research into finding long-term solutions to CO2 mitigation in the cement and
concrete sectors was initiated since commonly used supplementary cementitious materials
are not globally available in sufficient amounts. One of the possible solutions to that problem
is to develop concrete with a higher percentage of limestone in the powder phase. This work
presents a critical overview of the state-of-the-art in the field of the carbonation resistance of
limestone powder concrete. Experimental research performed so far has shown that if the
simple replacement of cement with limestone powder is applied in the standard mix design, a
maximum of 10-15% of cement (clinker) could be replaced to maintain similar carbonation
resistance. It has also been proven that the dilution effect of weakly inert limestone powder
can be compensated for with several measures in the mix design of concrete. By adjusting the
cement, limestone, and water content and their particle size distribution, it is feasible to design
concrete formulations with up to 50% limestone in the powder phase that are comparable to
referent Portland cement concrete in terms of rheological and mechanical performance and
carbonation resistance. This is an environmentally significant reduction in the clinker content,
but it comes at the cost of a larger superplasticizer content. Prediction models for the
carbonation resistance of the limestone powder concrete are poorly developed. Amongst
them, the fib MC 2010 prediction model is considered relatively simple and robust; however, it
has not yet been proven that the model is applicable to concrete with a higher content of
limestone powder (>15-20% of the powder phase). The future research should be oriented
towards further optimization of the concrete mix design and implementing this model on the
middle- and high-content limestone concrete carbonation.
PB  - Society for Materials and Structures Testing of Serbia
PB  - University of Belgrade Faculty of Civil Engineering
PB  - Association of Structural Engineers of Serbia
T2  - Building Materials and Structures
T1  - Carbonation of limestone powder concrete: state-of-the-art overview
EP  - 137
SP  - 127
VL  - 66
DO  - 10.5937/GRMK2300005M
ER  - 

@article{
author = "Marinković, Matija and Radović, Andrija and Carević, Vedran",
year = "2023",
abstract = "Recently, research into finding long-term solutions to CO2 mitigation in the cement and
concrete sectors was initiated since commonly used supplementary cementitious materials
are not globally available in sufficient amounts. One of the possible solutions to that problem
is to develop concrete with a higher percentage of limestone in the powder phase. This work
presents a critical overview of the state-of-the-art in the field of the carbonation resistance of
limestone powder concrete. Experimental research performed so far has shown that if the
simple replacement of cement with limestone powder is applied in the standard mix design, a
maximum of 10-15% of cement (clinker) could be replaced to maintain similar carbonation
resistance. It has also been proven that the dilution effect of weakly inert limestone powder
can be compensated for with several measures in the mix design of concrete. By adjusting the
cement, limestone, and water content and their particle size distribution, it is feasible to design
concrete formulations with up to 50% limestone in the powder phase that are comparable to
referent Portland cement concrete in terms of rheological and mechanical performance and
carbonation resistance. This is an environmentally significant reduction in the clinker content,
but it comes at the cost of a larger superplasticizer content. Prediction models for the
carbonation resistance of the limestone powder concrete are poorly developed. Amongst
them, the fib MC 2010 prediction model is considered relatively simple and robust; however, it
has not yet been proven that the model is applicable to concrete with a higher content of
limestone powder (>15-20% of the powder phase). The future research should be oriented
towards further optimization of the concrete mix design and implementing this model on the
middle- and high-content limestone concrete carbonation.",
publisher = "Society for Materials and Structures Testing of Serbia, University of Belgrade Faculty of Civil Engineering, Association of Structural Engineers of Serbia",
journal = "Building Materials and Structures",
title = "Carbonation of limestone powder concrete: state-of-the-art overview",
pages = "137-127",
volume = "66",
doi = "10.5937/GRMK2300005M"
}

Marinković, M., Radović, A.,& Carević, V.. (2023). Carbonation of limestone powder concrete: state-of-the-art overview. in Building Materials and Structures
Society for Materials and Structures Testing of Serbia., 66, 127-137.
https://doi.org/10.5937/GRMK2300005M

Marinković M, Radović A, Carević V. Carbonation of limestone powder concrete: state-of-the-art overview. in Building Materials and Structures. 2023;66:127-137.
doi:10.5937/GRMK2300005M .

Marinković, Matija, Radović, Andrija, Carević, Vedran, "Carbonation of limestone powder concrete: state-of-the-art overview" in Building Materials and Structures, 66 (2023):127-137,
https://doi.org/10.5937/GRMK2300005M . .

TY  - CONF
AU  - Carević, Vedran
AU  - Radević, Aleksandar
AU  - Ignjatović, Ivan
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3117
AB  - The use of fly ash (FA) for the production of new concrete seems to be a promising solution for “greening” of construction industry. However, re-placement of cement with supplementary cementitious materials such as fly ash influences concrete performance especially in terms of durability. One of major durability problems worldwide is carbonation-induced corrosion, given that a large number of infrastructural objects are exposed to a CO2-rich environment. The objective of this research was to analyse the influence of cement substitution level on accelerated and natural carbonation of concrete. Experimental program considered testing of 10 concrete mixtures selected in two groups – with water to binder ratio of 0,5 (400 kg/m3 of binders) and 0,6 (300 kg/m3 of binders), while in each group the cement substitution ratio was varied from 0% to 50%.  Carbonation depth was measured after 14, 21 and 28 days of exposure to 2% CO2 in carbonation chamber, while the twin samples were exposed to natural carbonation. It was shown that accelerated carbonation depths were similar in both groups for mixtures up to 30% of FA, but they were doubled and tripled for larger replacement levels. Using the previously modified fib carbonation model for service life design, the prediction of natural carbonation was made. A reliability of proposed modification was assessed by comparison between pre-dicted and measured values of natural carbonation after 19 and 34 months of exposure.
PB  - Springer, Cham
C3  - International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures
T1  - Influence of Fly Ash as Cement Substitution on Accelerated and Natural Carbonation of Concrete
EP  - 1152
SP  - 1141
VL  - 44
DO  - 10.1007/978-3-031-33187-9_106
ER  - 

@conference{
author = "Carević, Vedran and Radević, Aleksandar and Ignjatović, Ivan",
year = "2023",
abstract = "The use of fly ash (FA) for the production of new concrete seems to be a promising solution for “greening” of construction industry. However, re-placement of cement with supplementary cementitious materials such as fly ash influences concrete performance especially in terms of durability. One of major durability problems worldwide is carbonation-induced corrosion, given that a large number of infrastructural objects are exposed to a CO2-rich environment. The objective of this research was to analyse the influence of cement substitution level on accelerated and natural carbonation of concrete. Experimental program considered testing of 10 concrete mixtures selected in two groups – with water to binder ratio of 0,5 (400 kg/m3 of binders) and 0,6 (300 kg/m3 of binders), while in each group the cement substitution ratio was varied from 0% to 50%.  Carbonation depth was measured after 14, 21 and 28 days of exposure to 2% CO2 in carbonation chamber, while the twin samples were exposed to natural carbonation. It was shown that accelerated carbonation depths were similar in both groups for mixtures up to 30% of FA, but they were doubled and tripled for larger replacement levels. Using the previously modified fib carbonation model for service life design, the prediction of natural carbonation was made. A reliability of proposed modification was assessed by comparison between pre-dicted and measured values of natural carbonation after 19 and 34 months of exposure.",
publisher = "Springer, Cham",
journal = "International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures",
title = "Influence of Fly Ash as Cement Substitution on Accelerated and Natural Carbonation of Concrete",
pages = "1152-1141",
volume = "44",
doi = "10.1007/978-3-031-33187-9_106"
}

Carević, V., Radević, A.,& Ignjatović, I.. (2023). Influence of Fly Ash as Cement Substitution on Accelerated and Natural Carbonation of Concrete. in International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures
Springer, Cham., 44, 1141-1152.
https://doi.org/10.1007/978-3-031-33187-9_106

Carević V, Radević A, Ignjatović I. Influence of Fly Ash as Cement Substitution on Accelerated and Natural Carbonation of Concrete. in International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures. 2023;44:1141-1152.
doi:10.1007/978-3-031-33187-9_106 .

Carević, Vedran, Radević, Aleksandar, Ignjatović, Ivan, "Influence of Fly Ash as Cement Substitution on Accelerated and Natural Carbonation of Concrete" in International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures, 44 (2023):1141-1152,
https://doi.org/10.1007/978-3-031-33187-9_106 . .

TY  - CONF
AU  - Carević, Vedran
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3116
AB  - Pojava prslina dovodi do narušavanja strukture zaštitnog sloja betona i do ubrzanja transporta štetnih materija, čime utiču na trajnost armiranobetonskih (AB) konstrukcija. Kroz sveobuhvatni pregled literature, zaključeno je da deterioracija AB konstrukcija izazvana karbonatizacijom predstavlja jedan od glavnih problema trajnosti širom sveta. Za potrebe ispitivanja, u okviru doktorske disertacije, spravljeni su referentni beton, beton sa 50% letećeg pepela (LP) i beton sa 100% recikliranog agregata (RA). Analizirani su postojeći modeli predikcije dubine karbonatizacije i predložena je njihova modifikacija u slučaju betona sa RA i LP. Ustanovljena je veza između karbonatizacione otpornosti i čvrstoće pri pritisku na osnovu koje je izvršena analiza upotrebnog veka kroz definisanje debljine zaštitnog sloja različitih vrsta betona. Za potrebe ispitivanja uticaja prslina na upotrebni vek spravljeni su uzorci sa 5 različitih širina prslina (0.05, 0.10, 0.15, 0.20 i 0.30 mm) kao i referentni uzorci bez prslina. Na kraju, predloženo je ograničenje napona u armaturi čime se omogućava da celokupni upotrebni vek (period inicijacije i propagacije) AB konstrukcija zadovolji propisane zahteve trajnosti.
PB  - Društvo građevinskih inženjera Novog Sada
C3  - Savremena građevinska praksa 2023
T1  - Uticaj prslina na trajnost armiranobetonskih konstrukcija
EP  - 104
SP  - 91
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3116
ER  - 

@conference{
author = "Carević, Vedran",
year = "2023",
abstract = "Pojava prslina dovodi do narušavanja strukture zaštitnog sloja betona i do ubrzanja transporta štetnih materija, čime utiču na trajnost armiranobetonskih (AB) konstrukcija. Kroz sveobuhvatni pregled literature, zaključeno je da deterioracija AB konstrukcija izazvana karbonatizacijom predstavlja jedan od glavnih problema trajnosti širom sveta. Za potrebe ispitivanja, u okviru doktorske disertacije, spravljeni su referentni beton, beton sa 50% letećeg pepela (LP) i beton sa 100% recikliranog agregata (RA). Analizirani su postojeći modeli predikcije dubine karbonatizacije i predložena je njihova modifikacija u slučaju betona sa RA i LP. Ustanovljena je veza između karbonatizacione otpornosti i čvrstoće pri pritisku na osnovu koje je izvršena analiza upotrebnog veka kroz definisanje debljine zaštitnog sloja različitih vrsta betona. Za potrebe ispitivanja uticaja prslina na upotrebni vek spravljeni su uzorci sa 5 različitih širina prslina (0.05, 0.10, 0.15, 0.20 i 0.30 mm) kao i referentni uzorci bez prslina. Na kraju, predloženo je ograničenje napona u armaturi čime se omogućava da celokupni upotrebni vek (period inicijacije i propagacije) AB konstrukcija zadovolji propisane zahteve trajnosti.",
publisher = "Društvo građevinskih inženjera Novog Sada",
journal = "Savremena građevinska praksa 2023",
title = "Uticaj prslina na trajnost armiranobetonskih konstrukcija",
pages = "104-91",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3116"
}

Carević, V.. (2023). Uticaj prslina na trajnost armiranobetonskih konstrukcija. in Savremena građevinska praksa 2023
Društvo građevinskih inženjera Novog Sada., 91-104.
https://hdl.handle.net/21.15107/rcub_grafar_3116

Carević V. Uticaj prslina na trajnost armiranobetonskih konstrukcija. in Savremena građevinska praksa 2023. 2023;:91-104.
https://hdl.handle.net/21.15107/rcub_grafar_3116 .

Carević, Vedran, "Uticaj prslina na trajnost armiranobetonskih konstrukcija" in Savremena građevinska praksa 2023 (2023):91-104,
https://hdl.handle.net/21.15107/rcub_grafar_3116 .

TY  - CONF
AU  - Mitrović, Stefan
AU  - Dragaš, Jelena
AU  - Carević, Vedran
AU  - Vidović, Milica
AU  - Ignjatović, Ivan
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2773
AB  - The aim of this paper is an experimental investigation of fresh concrete properties of the mixture designed for 3D printing. Different mixtures with and without chemical additions (superplasticizer and hydration controller) with variable water-binder factor were considered. Density, time setting and workability flow/slump tests were determined in the fresh state. Ultimate capacities for compressive and flexural strength were analysed on cube and prism specimens at different age. The effect of chemical additions on properties was shown in the conclusion of this paper. The mixture with the waterbinder ratio 0.45 and amount of 13.8% of hydration controller had obtained the optimal properties for 3D printing.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije (DIMK)
PB  - Udruženje savremene industrije glinenih proizvoda Srbije
C3  - XXVIII Kongres DIMK i IX Kongres SIGP sa Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija
T1  - Experimental investigation of basic concrete properties for 3D printing technology
EP  - 488
SP  - 479
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2773
ER  - 

@conference{
author = "Mitrović, Stefan and Dragaš, Jelena and Carević, Vedran and Vidović, Milica and Ignjatović, Ivan",
year = "2022",
abstract = "The aim of this paper is an experimental investigation of fresh concrete properties of the mixture designed for 3D printing. Different mixtures with and without chemical additions (superplasticizer and hydration controller) with variable water-binder factor were considered. Density, time setting and workability flow/slump tests were determined in the fresh state. Ultimate capacities for compressive and flexural strength were analysed on cube and prism specimens at different age. The effect of chemical additions on properties was shown in the conclusion of this paper. The mixture with the waterbinder ratio 0.45 and amount of 13.8% of hydration controller had obtained the optimal properties for 3D printing.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije (DIMK), Udruženje savremene industrije glinenih proizvoda Srbije",
journal = "XXVIII Kongres DIMK i IX Kongres SIGP sa Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija",
title = "Experimental investigation of basic concrete properties for 3D printing technology",
pages = "488-479",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2773"
}

Mitrović, S., Dragaš, J., Carević, V., Vidović, M.,& Ignjatović, I.. (2022). Experimental investigation of basic concrete properties for 3D printing technology. in XXVIII Kongres DIMK i IX Kongres SIGP sa Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije (DIMK)., 479-488.
https://hdl.handle.net/21.15107/rcub_grafar_2773

Mitrović S, Dragaš J, Carević V, Vidović M, Ignjatović I. Experimental investigation of basic concrete properties for 3D printing technology. in XXVIII Kongres DIMK i IX Kongres SIGP sa Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija. 2022;:479-488.
https://hdl.handle.net/21.15107/rcub_grafar_2773 .

Mitrović, Stefan, Dragaš, Jelena, Carević, Vedran, Vidović, Milica, Ignjatović, Ivan, "Experimental investigation of basic concrete properties for 3D printing technology" in XXVIII Kongres DIMK i IX Kongres SIGP sa Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija (2022):479-488,
https://hdl.handle.net/21.15107/rcub_grafar_2773 .

TY  - CONF
AU  - Carević, Vedran
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2772
AB  - Na deterioracione mehanizme i koroziju koja nastaje njihovim dejstvom u velikoj meri utiče prisustvo prslina, pa se uloga prslina prouzrokovanih opterećenjem ne sme zanemariti u sagledavanju upotrebnog veka armiranobetonskih (AB) konstrukcija. Za potrebe ispitivanja spravljeni su referentni beton, beton sa 50% letećeg pepela (LP) i beton sa 100% recikliranog agregata (RA). Analizirani su postojeći modeli predikcije dubine karbonatizacije i predložena je njihova modifikacija u slučaju betona sa LP i RA. Nakon što je ustanovljena veza između karbonatizacione otpornosti i čvrstoće pri pritisku, izvršena je analiza upotrebnog veka kroz definisanje potrebne debljine zaštitnog sloja različitih vrsta betona. Pripremljeni su uzorci sa 5 različitih širina prslina (0.05, 0.10, 0.15, 0.20 i 0.30 mm) kao i referentni uzorci bez prslina. Predloženo je ograničenje napona u armaturi koji omogućava da celokupni upotrebni vek (period inicijacije i propagacije) AB elemenata zadovolji propisane zahteve trajnosti.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije (DIMK)
PB  - Udruženje savremene industrije glinenih proizvoda Srbije
C3  - XXVIII Kongres DIMK i IX Kongres SIGP sa Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija
T1  - Uticaj prslina na mehanizme deterioracije i trajnost armiranobetonskih konstrukcija
EP  - 22
SP  - 1
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2772
ER  - 

@conference{
author = "Carević, Vedran",
year = "2022",
abstract = "Na deterioracione mehanizme i koroziju koja nastaje njihovim dejstvom u velikoj meri utiče prisustvo prslina, pa se uloga prslina prouzrokovanih opterećenjem ne sme zanemariti u sagledavanju upotrebnog veka armiranobetonskih (AB) konstrukcija. Za potrebe ispitivanja spravljeni su referentni beton, beton sa 50% letećeg pepela (LP) i beton sa 100% recikliranog agregata (RA). Analizirani su postojeći modeli predikcije dubine karbonatizacije i predložena je njihova modifikacija u slučaju betona sa LP i RA. Nakon što je ustanovljena veza između karbonatizacione otpornosti i čvrstoće pri pritisku, izvršena je analiza upotrebnog veka kroz definisanje potrebne debljine zaštitnog sloja različitih vrsta betona. Pripremljeni su uzorci sa 5 različitih širina prslina (0.05, 0.10, 0.15, 0.20 i 0.30 mm) kao i referentni uzorci bez prslina. Predloženo je ograničenje napona u armaturi koji omogućava da celokupni upotrebni vek (period inicijacije i propagacije) AB elemenata zadovolji propisane zahteve trajnosti.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije (DIMK), Udruženje savremene industrije glinenih proizvoda Srbije",
journal = "XXVIII Kongres DIMK i IX Kongres SIGP sa Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija",
title = "Uticaj prslina na mehanizme deterioracije i trajnost armiranobetonskih konstrukcija",
pages = "22-1",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2772"
}

Carević, V.. (2022). Uticaj prslina na mehanizme deterioracije i trajnost armiranobetonskih konstrukcija. in XXVIII Kongres DIMK i IX Kongres SIGP sa Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije (DIMK)., 1-22.
https://hdl.handle.net/21.15107/rcub_grafar_2772

Carević V. Uticaj prslina na mehanizme deterioracije i trajnost armiranobetonskih konstrukcija. in XXVIII Kongres DIMK i IX Kongres SIGP sa Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija. 2022;:1-22.
https://hdl.handle.net/21.15107/rcub_grafar_2772 .

Carević, Vedran, "Uticaj prslina na mehanizme deterioracije i trajnost armiranobetonskih konstrukcija" in XXVIII Kongres DIMK i IX Kongres SIGP sa Međunarodni simpozijum o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija (2022):1-22,
https://hdl.handle.net/21.15107/rcub_grafar_2772 .

TY  - CONF
AU  - Ignjatović, Ivan
AU  - Mitrović, Stefan
AU  - Dragaš, Jelena
AU  - Carević, Vedran
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2723
AB  - 3D concrete printing technology enabled a new progress in industrialization, optimization and automatization of processes in contemporary construction works. This paper shows the commonly used methods of concrete 3D printing. Advantages, disadvantages and perspectives for further development of this technology are emphasized. Structural applications as an example of using this technology are shown. The analysis of existing knowledge about the influence of deterioration mechanisms on printed concrete was made. Evaluation of 3D concrete printing technology in terms of different aspect of sustainability has been done.
PB  - Association of Structural Engineers of Serbia
C3  - 16th International Congress Proceeding
T1  - Structural application of 3D concrete printing
EP  - 469
SP  - 458
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2723
ER  - 

@conference{
author = "Ignjatović, Ivan and Mitrović, Stefan and Dragaš, Jelena and Carević, Vedran",
year = "2022",
abstract = "3D concrete printing technology enabled a new progress in industrialization, optimization and automatization of processes in contemporary construction works. This paper shows the commonly used methods of concrete 3D printing. Advantages, disadvantages and perspectives for further development of this technology are emphasized. Structural applications as an example of using this technology are shown. The analysis of existing knowledge about the influence of deterioration mechanisms on printed concrete was made. Evaluation of 3D concrete printing technology in terms of different aspect of sustainability has been done.",
publisher = "Association of Structural Engineers of Serbia",
journal = "16th International Congress Proceeding",
title = "Structural application of 3D concrete printing",
pages = "469-458",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2723"
}

Ignjatović, I., Mitrović, S., Dragaš, J.,& Carević, V.. (2022). Structural application of 3D concrete printing. in 16th International Congress Proceeding
Association of Structural Engineers of Serbia., 458-469.
https://hdl.handle.net/21.15107/rcub_grafar_2723

Ignjatović I, Mitrović S, Dragaš J, Carević V. Structural application of 3D concrete printing. in 16th International Congress Proceeding. 2022;:458-469.
https://hdl.handle.net/21.15107/rcub_grafar_2723 .

Ignjatović, Ivan, Mitrović, Stefan, Dragaš, Jelena, Carević, Vedran, "Structural application of 3D concrete printing" in 16th International Congress Proceeding (2022):458-469,
https://hdl.handle.net/21.15107/rcub_grafar_2723 .

TY  - CONF
AU  - Carević, Vedran
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2724
AB  - The most important factor that affects concrete deterioration is the appearance of cracks on reinforced concrete (RC) structures, so the influence of loading cracks should not be neglected when the service life is analyzed. For the purposes of this research, reference concrete and concretes with 50% fly ash (FA) and with 100% recycled aggregate (RCA) were prepared. The existing carbonation prediction models were analyzed and modification was proposed in the case of FA and RCA concretes. After establishing the relationship between carbonation resistance and compressive strength, the service life analysis was performed by defining the required concrete cover depth for different concrete types. Samples with 5 different crack widths (0.05, 0.10, 0.15, 0.20 and 0.30mm) and samples without cracks were prepared and subjected to accelerated carbonation. For all concrete types steel stress limitation was pro-posed, which allows the entire service life of RC elements to meet the prescribed requirements.
PB  - Association of Structural Engineers of Serbia
C3  - 16th International Congress Proceeding
T1  - Influence of cracks on the deterioration mechanisms and durability of reinforced concrete structures
EP  - 46
SP  - 37
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2724
ER  - 

@conference{
author = "Carević, Vedran",
year = "2022",
abstract = "The most important factor that affects concrete deterioration is the appearance of cracks on reinforced concrete (RC) structures, so the influence of loading cracks should not be neglected when the service life is analyzed. For the purposes of this research, reference concrete and concretes with 50% fly ash (FA) and with 100% recycled aggregate (RCA) were prepared. The existing carbonation prediction models were analyzed and modification was proposed in the case of FA and RCA concretes. After establishing the relationship between carbonation resistance and compressive strength, the service life analysis was performed by defining the required concrete cover depth for different concrete types. Samples with 5 different crack widths (0.05, 0.10, 0.15, 0.20 and 0.30mm) and samples without cracks were prepared and subjected to accelerated carbonation. For all concrete types steel stress limitation was pro-posed, which allows the entire service life of RC elements to meet the prescribed requirements.",
publisher = "Association of Structural Engineers of Serbia",
journal = "16th International Congress Proceeding",
title = "Influence of cracks on the deterioration mechanisms and durability of reinforced concrete structures",
pages = "46-37",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2724"
}

Carević, V.. (2022). Influence of cracks on the deterioration mechanisms and durability of reinforced concrete structures. in 16th International Congress Proceeding
Association of Structural Engineers of Serbia., 37-46.
https://hdl.handle.net/21.15107/rcub_grafar_2724

Carević V. Influence of cracks on the deterioration mechanisms and durability of reinforced concrete structures. in 16th International Congress Proceeding. 2022;:37-46.
https://hdl.handle.net/21.15107/rcub_grafar_2724 .

Carević, Vedran, "Influence of cracks on the deterioration mechanisms and durability of reinforced concrete structures" in 16th International Congress Proceeding (2022):37-46,
https://hdl.handle.net/21.15107/rcub_grafar_2724 .

TY  - JOUR
AU  - Ildiko, Merta
AU  - Poletanović, Bojan
AU  - Dragaš, Jelena
AU  - Carević, Vedran
AU  - Ignjatović, Ivan
AU  - Komljenović, Miroslav
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2663
AB  - The physical and mechanical properties of hemp-fibre-reinforced alkali-activated (AA) mortars under accelerated carbonation were evaluated. Two matrices of different physical and chemical properties, i.e., a low Ca-containing and less dense one with fly ash (FA) and a high Ca-containing and denser one with FA and granulated blast furnace slag (GBFS), were reinforced with fibres (10 mm, 0.5 vol% and 1.0 vol%). Under accelerated carbonation, due to the pore refinement resulting from alkali and alkaline earth salt precipitation, AA hemp fibre mortars markedly (20%) decreased their water absorption. FA-based hemp mortars increased significantly their compressive and flexural strength (40% and 34%, respectively), whereas in the denser FA/GBFS matrix (due to the hindered CO2 penetration, i.e., lower chemical reaction between CO2 and pore solution and gel products), only a slight variation (±10%) occurred. Under accelerated carbonation, embrittlement of the fibre/matrix interface and of the whole composite occurred, accompanied by increased stiffness, decreased deformation capacity and loss of the energy absorption capacity under flexure. FA-based matrices exhibited more pronounced embrittlement than the denser FA/GBFS matrices. A combination of FA/GBFS-based mortar reinforced with 0.5 vol% fibre dosage ensured an optimal fibre/matrix interface and stress transfer, mitigating the embrittlement of the material under accelerated carbonation.
PB  - MDPI
T2  - Polymers
T1  - The Influence of Accelerated Carbonation on Physical and Mechanical Properties of Hemp-Fibre-Reinforced Alkali-Activated Fly Ash and Fly Ash/Slag Mortars
SP  - 1799
VL  - 14
DO  - 10.3390/polym14091799
ER  - 

@article{
author = "Ildiko, Merta and Poletanović, Bojan and Dragaš, Jelena and Carević, Vedran and Ignjatović, Ivan and Komljenović, Miroslav",
year = "2022",
abstract = "The physical and mechanical properties of hemp-fibre-reinforced alkali-activated (AA) mortars under accelerated carbonation were evaluated. Two matrices of different physical and chemical properties, i.e., a low Ca-containing and less dense one with fly ash (FA) and a high Ca-containing and denser one with FA and granulated blast furnace slag (GBFS), were reinforced with fibres (10 mm, 0.5 vol% and 1.0 vol%). Under accelerated carbonation, due to the pore refinement resulting from alkali and alkaline earth salt precipitation, AA hemp fibre mortars markedly (20%) decreased their water absorption. FA-based hemp mortars increased significantly their compressive and flexural strength (40% and 34%, respectively), whereas in the denser FA/GBFS matrix (due to the hindered CO2 penetration, i.e., lower chemical reaction between CO2 and pore solution and gel products), only a slight variation (±10%) occurred. Under accelerated carbonation, embrittlement of the fibre/matrix interface and of the whole composite occurred, accompanied by increased stiffness, decreased deformation capacity and loss of the energy absorption capacity under flexure. FA-based matrices exhibited more pronounced embrittlement than the denser FA/GBFS matrices. A combination of FA/GBFS-based mortar reinforced with 0.5 vol% fibre dosage ensured an optimal fibre/matrix interface and stress transfer, mitigating the embrittlement of the material under accelerated carbonation.",
publisher = "MDPI",
journal = "Polymers",
title = "The Influence of Accelerated Carbonation on Physical and Mechanical Properties of Hemp-Fibre-Reinforced Alkali-Activated Fly Ash and Fly Ash/Slag Mortars",
pages = "1799",
volume = "14",
doi = "10.3390/polym14091799"
}

Ildiko, M., Poletanović, B., Dragaš, J., Carević, V., Ignjatović, I.,& Komljenović, M.. (2022). The Influence of Accelerated Carbonation on Physical and Mechanical Properties of Hemp-Fibre-Reinforced Alkali-Activated Fly Ash and Fly Ash/Slag Mortars. in Polymers
MDPI., 14, 1799.
https://doi.org/10.3390/polym14091799

Ildiko M, Poletanović B, Dragaš J, Carević V, Ignjatović I, Komljenović M. The Influence of Accelerated Carbonation on Physical and Mechanical Properties of Hemp-Fibre-Reinforced Alkali-Activated Fly Ash and Fly Ash/Slag Mortars. in Polymers. 2022;14:1799.
doi:10.3390/polym14091799 .

Ildiko, Merta, Poletanović, Bojan, Dragaš, Jelena, Carević, Vedran, Ignjatović, Ivan, Komljenović, Miroslav, "The Influence of Accelerated Carbonation on Physical and Mechanical Properties of Hemp-Fibre-Reinforced Alkali-Activated Fly Ash and Fly Ash/Slag Mortars" in Polymers, 14 (2022):1799,
https://doi.org/10.3390/polym14091799 . .

TY  - CONF
AU  - Marinković, Snežana
AU  - Ignjatović, Ivan
AU  - Tošić, Nikola
AU  - Dragaš, Jelena
AU  - Carević, Vedran
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2436
AB  - During the last decade, a comprehensive experimental and numerical research on various sustainable concrete options for application in concrete structures was performed at the Faculty of Civil Engineering, University of Belgrade. Several types of green concrete mix designs were investigated: recycled aggregate concrete (RAC), high-volume fly ash concrete (HVFAC), alkali activated fly ash concrete (AAFAC) as well as their combinations. Numerous tests on material physical, mechanical and durability related properties were conducted as well as sustainability assessments of the structural use of such concretes. Structural behavior under short and long-term loading was investigated on full-scale reinforced concrete beams and recommendations for the design of structural members including strength, serviceability and durability were proposed. The work carried out by the group formed a significant part of the basis for RAC provisions in the new Eurocode 2-revision and the fib Model Code 2020.
PB  - Departman za građevinarstvo i geodeziju, Fakultet tehničkih nauka, Novi Sad
C3  - 15th international scientific conference INDIS, planning, design, construction and building renewal
T1  - Sustainable solutions for structural concrete – research conducted by Belgrade’s concrete structures research group over the last decade
EP  - 31
SP  - 2
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2436
ER  - 

@conference{
author = "Marinković, Snežana and Ignjatović, Ivan and Tošić, Nikola and Dragaš, Jelena and Carević, Vedran",
year = "2021",
abstract = "During the last decade, a comprehensive experimental and numerical research on various sustainable concrete options for application in concrete structures was performed at the Faculty of Civil Engineering, University of Belgrade. Several types of green concrete mix designs were investigated: recycled aggregate concrete (RAC), high-volume fly ash concrete (HVFAC), alkali activated fly ash concrete (AAFAC) as well as their combinations. Numerous tests on material physical, mechanical and durability related properties were conducted as well as sustainability assessments of the structural use of such concretes. Structural behavior under short and long-term loading was investigated on full-scale reinforced concrete beams and recommendations for the design of structural members including strength, serviceability and durability were proposed. The work carried out by the group formed a significant part of the basis for RAC provisions in the new Eurocode 2-revision and the fib Model Code 2020.",
publisher = "Departman za građevinarstvo i geodeziju, Fakultet tehničkih nauka, Novi Sad",
journal = "15th international scientific conference INDIS, planning, design, construction and building renewal",
title = "Sustainable solutions for structural concrete – research conducted by Belgrade’s concrete structures research group over the last decade",
pages = "31-2",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2436"
}

Marinković, S., Ignjatović, I., Tošić, N., Dragaš, J.,& Carević, V.. (2021). Sustainable solutions for structural concrete – research conducted by Belgrade’s concrete structures research group over the last decade. in 15th international scientific conference INDIS, planning, design, construction and building renewal
Departman za građevinarstvo i geodeziju, Fakultet tehničkih nauka, Novi Sad., 2-31.
https://hdl.handle.net/21.15107/rcub_grafar_2436

Marinković S, Ignjatović I, Tošić N, Dragaš J, Carević V. Sustainable solutions for structural concrete – research conducted by Belgrade’s concrete structures research group over the last decade. in 15th international scientific conference INDIS, planning, design, construction and building renewal. 2021;:2-31.
https://hdl.handle.net/21.15107/rcub_grafar_2436 .

Marinković, Snežana, Ignjatović, Ivan, Tošić, Nikola, Dragaš, Jelena, Carević, Vedran, "Sustainable solutions for structural concrete – research conducted by Belgrade’s concrete structures research group over the last decade" in 15th international scientific conference INDIS, planning, design, construction and building renewal (2021):2-31,
https://hdl.handle.net/21.15107/rcub_grafar_2436 .

TY  - CONF
AU  - Carević, Vedran
AU  - Ignjatović, Ivan
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2374
AB  - The use of recycled concrete aggregate (RCA) for the production of new concrete can be a promising eco-efficient solution. However, replacement of natural aggregate (NA) with RCA influences concrete’s durability performance. One of major durability problems worldwide is carbonation-induced corrosion, given that a large number of infrastructural objects are exposed to a CO2-rich environment. There are many factors that affect carbonation process, but possibly the most important one is the appearance of cracks in reinforced concrete (RC) structures. Currently, the cracks have not yet been considered as a parameter in carbonation model which is used for defining the service life of RC structures. The objective of this research was to analyse the influence of cracked concrete cover as a good reinforcement protection. In order to ensure a sustainable application of recycle aggregate concrete (RAC), an analysis was performed on RAC with 100% replacement of coarse NA with RCA. The analysis was carried out using own experimental results and the application of existing fib Model Code 2010 carbonation depth prediction model derived for NA concrete. For that purpose, prismatic RC samples without cracks and with different crack width (0.05 mm, 0.10 mm, 0.15 mm, 0.20 mm and 0.30 mm) were made and subjected to accelerated carbonation. The compressive and tensile stress influence on carbonation resistance was evaluated as well as reinforcing bar corrosion at crack position. The conducted analysis showed that even with low crack widths (0.05 mm) the maximum carbonation depth was significantly higher compared with the uncracked samples. The results showed that compressive stress increase had no significant difference in the carbonation depth of samples.
PB  - Fib
C3  - Proceedings for the 2021 fib Symposium Concrete Structures: New Trends for Eco-Efficiency and Performance
T1  - Influence of Cracks on the Carbonation Resistance of Recycled Aggregate Concrete
EP  - 431
SP  - 422
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2374
ER  - 

@conference{
author = "Carević, Vedran and Ignjatović, Ivan",
year = "2021",
abstract = "The use of recycled concrete aggregate (RCA) for the production of new concrete can be a promising eco-efficient solution. However, replacement of natural aggregate (NA) with RCA influences concrete’s durability performance. One of major durability problems worldwide is carbonation-induced corrosion, given that a large number of infrastructural objects are exposed to a CO2-rich environment. There are many factors that affect carbonation process, but possibly the most important one is the appearance of cracks in reinforced concrete (RC) structures. Currently, the cracks have not yet been considered as a parameter in carbonation model which is used for defining the service life of RC structures. The objective of this research was to analyse the influence of cracked concrete cover as a good reinforcement protection. In order to ensure a sustainable application of recycle aggregate concrete (RAC), an analysis was performed on RAC with 100% replacement of coarse NA with RCA. The analysis was carried out using own experimental results and the application of existing fib Model Code 2010 carbonation depth prediction model derived for NA concrete. For that purpose, prismatic RC samples without cracks and with different crack width (0.05 mm, 0.10 mm, 0.15 mm, 0.20 mm and 0.30 mm) were made and subjected to accelerated carbonation. The compressive and tensile stress influence on carbonation resistance was evaluated as well as reinforcing bar corrosion at crack position. The conducted analysis showed that even with low crack widths (0.05 mm) the maximum carbonation depth was significantly higher compared with the uncracked samples. The results showed that compressive stress increase had no significant difference in the carbonation depth of samples.",
publisher = "Fib",
journal = "Proceedings for the 2021 fib Symposium Concrete Structures: New Trends for Eco-Efficiency and Performance",
title = "Influence of Cracks on the Carbonation Resistance of Recycled Aggregate Concrete",
pages = "431-422",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2374"
}

Carević, V.,& Ignjatović, I.. (2021). Influence of Cracks on the Carbonation Resistance of Recycled Aggregate Concrete. in Proceedings for the 2021 fib Symposium Concrete Structures: New Trends for Eco-Efficiency and Performance
Fib., 422-431.
https://hdl.handle.net/21.15107/rcub_grafar_2374

Carević V, Ignjatović I. Influence of Cracks on the Carbonation Resistance of Recycled Aggregate Concrete. in Proceedings for the 2021 fib Symposium Concrete Structures: New Trends for Eco-Efficiency and Performance. 2021;:422-431.
https://hdl.handle.net/21.15107/rcub_grafar_2374 .

Carević, Vedran, Ignjatović, Ivan, "Influence of Cracks on the Carbonation Resistance of Recycled Aggregate Concrete" in Proceedings for the 2021 fib Symposium Concrete Structures: New Trends for Eco-Efficiency and Performance (2021):422-431,
https://hdl.handle.net/21.15107/rcub_grafar_2374 .

TY  - CONF
AU  - Tanasijević, Gordana
AU  - Provis, John
AU  - Carević, Vedran
AU  - Ignjatović, Ivan
AU  - Komljenović, Miroslav
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2270
AB  - In this paper the effect of accelerated carbonation process on the effectiveness of immobilization of cesium (simulated radioactive and toxic waste) in the alkali-activated blast furnace slag (AABFS) matrix was studied. Blast furnace slag (BFS) was contaminated with 2% and 5% Cs (with respect to the dry BFS mass) and alkali-activated with sodium silicate solution, while the AABFS samples were cured sealed in plastic envelopes for 24 h at 95oC. First series of AABFS samples were exposed to accelerated carbonation (open curing), while the second (reference) series of 
 ABFS samples left to aging (also sealed) at room temperature until testing. Thereafter AABFS samples were subjected to a short-term (five-day) leaching tests according to the ANSI/ANS-16.1-2003 standard. The strength of AABFS mortars were tested according to the SRPS EN 196-1 standard, while the carbonation was confirmed by phenolphthalein test and SEM analysis. The diffusion coefficient (D) and non-dimensional leachability index (L) of cesium leached from ABFS were calculated according to the ANSI/ANS-16.1–2003 standard. A correlation between the accelerated carbonation process and the effectiveness of immobilization of cesium in AABFS was established.
PB  - Slovenian National Building and Civil Engineering Institute (ZAG)
C3  - Proceedings of the 2nd International Conference on Construction Materials for a Sustainable Future
T1  - Effect of accelerated carbonation on the efficiency of immobilization of Cs in the alkaliactivated blast furnace slag
EP  - 311
SP  - 303
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2270
ER  - 

@conference{
author = "Tanasijević, Gordana and Provis, John and Carević, Vedran and Ignjatović, Ivan and Komljenović, Miroslav",
year = "2021",
abstract = "In this paper the effect of accelerated carbonation process on the effectiveness of immobilization of cesium (simulated radioactive and toxic waste) in the alkali-activated blast furnace slag (AABFS) matrix was studied. Blast furnace slag (BFS) was contaminated with 2% and 5% Cs (with respect to the dry BFS mass) and alkali-activated with sodium silicate solution, while the AABFS samples were cured sealed in plastic envelopes for 24 h at 95oC. First series of AABFS samples were exposed to accelerated carbonation (open curing), while the second (reference) series of 
 ABFS samples left to aging (also sealed) at room temperature until testing. Thereafter AABFS samples were subjected to a short-term (five-day) leaching tests according to the ANSI/ANS-16.1-2003 standard. The strength of AABFS mortars were tested according to the SRPS EN 196-1 standard, while the carbonation was confirmed by phenolphthalein test and SEM analysis. The diffusion coefficient (D) and non-dimensional leachability index (L) of cesium leached from ABFS were calculated according to the ANSI/ANS-16.1–2003 standard. A correlation between the accelerated carbonation process and the effectiveness of immobilization of cesium in AABFS was established.",
publisher = "Slovenian National Building and Civil Engineering Institute (ZAG)",
journal = "Proceedings of the 2nd International Conference on Construction Materials for a Sustainable Future",
title = "Effect of accelerated carbonation on the efficiency of immobilization of Cs in the alkaliactivated blast furnace slag",
pages = "311-303",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2270"
}

Tanasijević, G., Provis, J., Carević, V., Ignjatović, I.,& Komljenović, M.. (2021). Effect of accelerated carbonation on the efficiency of immobilization of Cs in the alkaliactivated blast furnace slag. in Proceedings of the 2nd International Conference on Construction Materials for a Sustainable Future
Slovenian National Building and Civil Engineering Institute (ZAG)., 303-311.
https://hdl.handle.net/21.15107/rcub_grafar_2270

Tanasijević G, Provis J, Carević V, Ignjatović I, Komljenović M. Effect of accelerated carbonation on the efficiency of immobilization of Cs in the alkaliactivated blast furnace slag. in Proceedings of the 2nd International Conference on Construction Materials for a Sustainable Future. 2021;:303-311.
https://hdl.handle.net/21.15107/rcub_grafar_2270 .

Tanasijević, Gordana, Provis, John, Carević, Vedran, Ignjatović, Ivan, Komljenović, Miroslav, "Effect of accelerated carbonation on the efficiency of immobilization of Cs in the alkaliactivated blast furnace slag" in Proceedings of the 2nd International Conference on Construction Materials for a Sustainable Future (2021):303-311,
https://hdl.handle.net/21.15107/rcub_grafar_2270 .

TY  - CONF
AU  - Carević, Vedran
AU  - Dragaš, Jelena
AU  - Radević, Aleksandar
AU  - Jevtić, Dragica
AU  - Zakić, Dimitrije
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2087
AB  - This research was conducted in order to evaluate the influence of different curing conditions on rheological and mechanical properties of high volume fly ash concrete (HVFAC) in comparison with the ordinary Portland cement concrete (OPC). Four types of concrete were made: two HVFAC and two OPC designed to have the same consistency and 28-day compressive strength for samples cured in water. Also, three different curing regimes were chosen: standard water curing (W), standard laboratory air curing (L) and curing in standard laboratory conditions using curing compound based on the polyolefin emulsion (C). The main objectives were to evaluate the influence of these curing regimes on the compressive strength, flexural tensile strength, modulus of elasticity development over time, water permeability of concrete and concrete shrinkage. The use of curing compound improved previously mentioned properties in some extent compared with the samples cured in standard air conditions.
PB  - University of Banja Luka
C3  - Proceedings of international conference on contemporary theory and practice in construction XIV
T1  - The influence of different curing conditions on hvfac rheological and mechanical properties
EP  - 31
SP  - 20
DO  - 10.7251/STP2014020C
ER  - 

@conference{
author = "Carević, Vedran and Dragaš, Jelena and Radević, Aleksandar and Jevtić, Dragica and Zakić, Dimitrije",
year = "2020",
abstract = "This research was conducted in order to evaluate the influence of different curing conditions on rheological and mechanical properties of high volume fly ash concrete (HVFAC) in comparison with the ordinary Portland cement concrete (OPC). Four types of concrete were made: two HVFAC and two OPC designed to have the same consistency and 28-day compressive strength for samples cured in water. Also, three different curing regimes were chosen: standard water curing (W), standard laboratory air curing (L) and curing in standard laboratory conditions using curing compound based on the polyolefin emulsion (C). The main objectives were to evaluate the influence of these curing regimes on the compressive strength, flexural tensile strength, modulus of elasticity development over time, water permeability of concrete and concrete shrinkage. The use of curing compound improved previously mentioned properties in some extent compared with the samples cured in standard air conditions.",
publisher = "University of Banja Luka",
journal = "Proceedings of international conference on contemporary theory and practice in construction XIV",
title = "The influence of different curing conditions on hvfac rheological and mechanical properties",
pages = "31-20",
doi = "10.7251/STP2014020C"
}

Carević, V., Dragaš, J., Radević, A., Jevtić, D.,& Zakić, D.. (2020). The influence of different curing conditions on hvfac rheological and mechanical properties. in Proceedings of international conference on contemporary theory and practice in construction XIV
University of Banja Luka., 20-31.
https://doi.org/10.7251/STP2014020C

Carević V, Dragaš J, Radević A, Jevtić D, Zakić D. The influence of different curing conditions on hvfac rheological and mechanical properties. in Proceedings of international conference on contemporary theory and practice in construction XIV. 2020;:20-31.
doi:10.7251/STP2014020C .

Carević, Vedran, Dragaš, Jelena, Radević, Aleksandar, Jevtić, Dragica, Zakić, Dimitrije, "The influence of different curing conditions on hvfac rheological and mechanical properties" in Proceedings of international conference on contemporary theory and practice in construction XIV (2020):20-31,
https://doi.org/10.7251/STP2014020C . .

TY  - GEN
AU  - Драгаш, Јелена
AU  - Маринковић, Снежана
AU  - Игњатовић, Иван
AU  - Царевић, Ведран
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3218
T1  - Технолошки поступак производње зелених бетона са високим садржајем летећег пепела за примену у армиранобетонским конструкцијама
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3218
ER  - 

@misc{
author = "Драгаш, Јелена and Маринковић, Снежана and Игњатовић, Иван and Царевић, Ведран",
year = "2020",
title = "Технолошки поступак производње зелених бетона са високим садржајем летећег пепела за примену у армиранобетонским конструкцијама",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3218"
}

Драгаш, Ј., Маринковић, С., Игњатовић, И.,& Царевић, В.. (2020). Технолошки поступак производње зелених бетона са високим садржајем летећег пепела за примену у армиранобетонским конструкцијама. .
https://hdl.handle.net/21.15107/rcub_grafar_3218

Драгаш Ј, Маринковић С, Игњатовић И, Царевић В. Технолошки поступак производње зелених бетона са високим садржајем летећег пепела за примену у армиранобетонским конструкцијама. 2020;.
https://hdl.handle.net/21.15107/rcub_grafar_3218 .

Драгаш, Јелена, Маринковић, Снежана, Игњатовић, Иван, Царевић, Ведран, "Технолошки поступак производње зелених бетона са високим садржајем летећег пепела за примену у армиранобетонским конструкцијама" (2020),
https://hdl.handle.net/21.15107/rcub_grafar_3218 .

TY  - JOUR
AU  - Marinković, Snežana
AU  - Carević, Vedran
AU  - Dragaš, Jelena
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2232
AB  - In comparative Life Cycle Assessment (LCA) of concrete structures it is of crucial importance to provide the functional equivalence of compared alternatives. Most commonly, the comparison is performed between the structures made of conventional and green concrete mixtures. Since they have different mechanical and durability properties, corresponding structures have different strength and service life. While resolving this problem, two approaches are generally possible: either correction of the functional unit volume or correction of the calculated environmental impacts with compressive strength and duration of service life, if functional unit has the same volume. In this work, in order to assess the effect of service life modeling in LCA, both approaches were tested. As a demonstration, comparison of both slabs and beams made of conventional and high volume fly ash concrete exposed to carbonation was carried out. LCA was performed for 94 different mixtures from reported experimental research and calculated environmental impacts (climate change, acidification, eutrophication, photochemical-oxidant creation, and abiotic depletion of fossil fuels) for both approaches were compared. Results showed that different modeling of service life in LCA can result in totally different, even opposite conclusions. With slightly larger volume of functional unit (7%–20%), all normalized environmental impacts of high volume fly ash concrete structural members were lower for an order of magnitude (6–7 times) compared to those obtained on the basis of the same volume approach. Therefore, drawing conclusions only on the basis of service life modeling with the same volume approach may be misleading. The proper choice of the best alternative should be based on the integrated assessment which includes structural, environmental and cost assessment of the structure as a whole.
PB  - Elsevier Ltd
T2  - Journal of Cleaner Production
T1  - The role of service life in Life Cycle Assessment of concrete structures
SP  - 125610
VL  - 290
DO  - 10.1016/j.jclepro.2020.125610
ER  - 

@article{
author = "Marinković, Snežana and Carević, Vedran and Dragaš, Jelena",
year = "2020",
abstract = "In comparative Life Cycle Assessment (LCA) of concrete structures it is of crucial importance to provide the functional equivalence of compared alternatives. Most commonly, the comparison is performed between the structures made of conventional and green concrete mixtures. Since they have different mechanical and durability properties, corresponding structures have different strength and service life. While resolving this problem, two approaches are generally possible: either correction of the functional unit volume or correction of the calculated environmental impacts with compressive strength and duration of service life, if functional unit has the same volume. In this work, in order to assess the effect of service life modeling in LCA, both approaches were tested. As a demonstration, comparison of both slabs and beams made of conventional and high volume fly ash concrete exposed to carbonation was carried out. LCA was performed for 94 different mixtures from reported experimental research and calculated environmental impacts (climate change, acidification, eutrophication, photochemical-oxidant creation, and abiotic depletion of fossil fuels) for both approaches were compared. Results showed that different modeling of service life in LCA can result in totally different, even opposite conclusions. With slightly larger volume of functional unit (7%–20%), all normalized environmental impacts of high volume fly ash concrete structural members were lower for an order of magnitude (6–7 times) compared to those obtained on the basis of the same volume approach. Therefore, drawing conclusions only on the basis of service life modeling with the same volume approach may be misleading. The proper choice of the best alternative should be based on the integrated assessment which includes structural, environmental and cost assessment of the structure as a whole.",
publisher = "Elsevier Ltd",
journal = "Journal of Cleaner Production",
title = "The role of service life in Life Cycle Assessment of concrete structures",
pages = "125610",
volume = "290",
doi = "10.1016/j.jclepro.2020.125610"
}

Marinković, S., Carević, V.,& Dragaš, J.. (2020). The role of service life in Life Cycle Assessment of concrete structures. in Journal of Cleaner Production
Elsevier Ltd., 290, 125610.
https://doi.org/10.1016/j.jclepro.2020.125610

Marinković S, Carević V, Dragaš J. The role of service life in Life Cycle Assessment of concrete structures. in Journal of Cleaner Production. 2020;290:125610.
doi:10.1016/j.jclepro.2020.125610 .

Marinković, Snežana, Carević, Vedran, Dragaš, Jelena, "The role of service life in Life Cycle Assessment of concrete structures" in Journal of Cleaner Production, 290 (2020):125610,
https://doi.org/10.1016/j.jclepro.2020.125610 . .

TY  - CONF
AU  - Carević, Vedran
AU  - Ignjatović, Ivan
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2178
AB  - In reinforced concrete (RC) structures carbonation induced corrosion is one of the biggest durability issue. There are many factors that affect carbonation process (CO2 concentration, relative humidity, temperature, curing conditions and concrete porosity). Probably, the most important factor that affects carbonation process is the appearance of cracks on RC structures. With relatively low concrete tensile strength, cracks are almost inevitable. According to the current state of the art, the cracks have not yet been considered as a parameter in carbonation depth prediction model which is used for defining the service life of concrete structures. The main objective of this research is to analyse the influence of cracks on concrete carbonation resistance using own experimental results and the application of available prediction models regarding carbonation depth. For that purpose, prismatic RC samples without cracks and with different crack width (0.05 mm, 0.10 mm, 0.15 mm, 0.20 mm and 0.30 mm) were made and subjected to accelerated carbonation. The accelerated carbonation tests were performed during 28 days at a CO2 concentration of 2%, relative humidity (RH) of 65±5% and a temperature of 20±2°C. The conducted analysis showed that even with low crack widths (0.05 mm) the maximum carbonation depth was significantly higher compared with the uncracked samples. In all cases, the cracks behaved as an additional exposed surface through which the CO2 molecules were diffused perpendicularly to the crack wall. The crack impact area was approximately the same regardless of the crack width. Further than 10 mm, the carbonation depths remained constant. Also, with decreasing the length at which the average value of the carbonation depth was calculated (averaging length), the mean carbonation depth increased. Finaly, the ratio between the calculated carbonation depths (according to fib-Model Code 2010) of cracked and uncracked samples was up to three times.
PB  - University of Montenegro Faculty of Civil Engineering
C3  - The 7th international conference "Civil engineering - science and practice"
T1  - Influence of cracks on concrete carbonation resistance
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2178
ER  - 

@conference{
author = "Carević, Vedran and Ignjatović, Ivan",
year = "2020",
abstract = "In reinforced concrete (RC) structures carbonation induced corrosion is one of the biggest durability issue. There are many factors that affect carbonation process (CO2 concentration, relative humidity, temperature, curing conditions and concrete porosity). Probably, the most important factor that affects carbonation process is the appearance of cracks on RC structures. With relatively low concrete tensile strength, cracks are almost inevitable. According to the current state of the art, the cracks have not yet been considered as a parameter in carbonation depth prediction model which is used for defining the service life of concrete structures. The main objective of this research is to analyse the influence of cracks on concrete carbonation resistance using own experimental results and the application of available prediction models regarding carbonation depth. For that purpose, prismatic RC samples without cracks and with different crack width (0.05 mm, 0.10 mm, 0.15 mm, 0.20 mm and 0.30 mm) were made and subjected to accelerated carbonation. The accelerated carbonation tests were performed during 28 days at a CO2 concentration of 2%, relative humidity (RH) of 65±5% and a temperature of 20±2°C. The conducted analysis showed that even with low crack widths (0.05 mm) the maximum carbonation depth was significantly higher compared with the uncracked samples. In all cases, the cracks behaved as an additional exposed surface through which the CO2 molecules were diffused perpendicularly to the crack wall. The crack impact area was approximately the same regardless of the crack width. Further than 10 mm, the carbonation depths remained constant. Also, with decreasing the length at which the average value of the carbonation depth was calculated (averaging length), the mean carbonation depth increased. Finaly, the ratio between the calculated carbonation depths (according to fib-Model Code 2010) of cracked and uncracked samples was up to three times.",
publisher = "University of Montenegro Faculty of Civil Engineering",
journal = "The 7th international conference "Civil engineering - science and practice"",
title = "Influence of cracks on concrete carbonation resistance",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2178"
}

Carević, V.,& Ignjatović, I.. (2020). Influence of cracks on concrete carbonation resistance. in The 7th international conference "Civil engineering - science and practice"
University of Montenegro Faculty of Civil Engineering..
https://hdl.handle.net/21.15107/rcub_grafar_2178

Carević V, Ignjatović I. Influence of cracks on concrete carbonation resistance. in The 7th international conference "Civil engineering - science and practice". 2020;.
https://hdl.handle.net/21.15107/rcub_grafar_2178 .

Carević, Vedran, Ignjatović, Ivan, "Influence of cracks on concrete carbonation resistance" in The 7th international conference "Civil engineering - science and practice" (2020),
https://hdl.handle.net/21.15107/rcub_grafar_2178 .

TY  - THES
AU  - Carević, Vedran
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2223
PB  - Univerzitet u Beogradu, Građevinski fakultet
T2  - Univerzitet u Beogradu
T1  - Uticaj prslina na mehanizme deterioracije i trajnost armiranobetonskih konstrukcija
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2223
ER  - 

@phdthesis{
author = "Carević, Vedran",
year = "2020",
publisher = "Univerzitet u Beogradu, Građevinski fakultet",
journal = "Univerzitet u Beogradu",
title = "Uticaj prslina na mehanizme deterioracije i trajnost armiranobetonskih konstrukcija",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2223"
}

Carević, V.. (2020). Uticaj prslina na mehanizme deterioracije i trajnost armiranobetonskih konstrukcija. in Univerzitet u Beogradu
Univerzitet u Beogradu, Građevinski fakultet..
https://hdl.handle.net/21.15107/rcub_grafar_2223

Carević V. Uticaj prslina na mehanizme deterioracije i trajnost armiranobetonskih konstrukcija. in Univerzitet u Beogradu. 2020;.
https://hdl.handle.net/21.15107/rcub_grafar_2223 .

Carević, Vedran, "Uticaj prslina na mehanizme deterioracije i trajnost armiranobetonskih konstrukcija" in Univerzitet u Beogradu (2020),
https://hdl.handle.net/21.15107/rcub_grafar_2223 .

TY  - JOUR
AU  - Carević, Vedran
AU  - Ignjatović, Ivan
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2095
AB  - Carbonation resistance of fly ash concrete (FAC) and recycled aggregate concrete (RAC) has been extensively tested in the past decade, but there are still no recommendations for their application in codes of practice. Therefore, the main objective of this study was to determine the minimum concrete cover depth of RAC and FAC exposed to carbonation to satisfy the required service life. In this study the relationship between concrete compressive strength at 28 days (fcm) and inverse effective carbonation resistance (R–1ACC) was established. The analysis was carried out on all data available in the literature in order to establish this relationship for FAC and RAC made with different replacement percentages. After establishing a relationship between R–1ACC and fcm, a prediction of the service life was made using the fib-Bulletin 34 (2006) prediction model for all exposure classes to carbonation. For same concrete class, it can be concluded that in the case of RAC there was no significant difference in the duration of the service life compared with natural aggregate concrete, even at 100% replacement of natural aggregate with recycled ones. For concrete up to 35% of fly ash in total cementitious materials, concrete cover for satisfying the required service life of 50 years was 40% higher compared with Portland cement concrete, and more than two times higher in case of concrete with 40–70% fly ash.
PB  - John Wiley & Sons Ltd
T2  - Structural Concrete
T1  - Evaluation of Concrete Cover Depth for Green Concretes Exposed to Carbonation
EP  - 1021
SP  - 1009
VL  - Vol 22 (S1)
DO  - 10.1002/suco.202000086
ER  - 

@article{
author = "Carević, Vedran and Ignjatović, Ivan",
year = "2020",
abstract = "Carbonation resistance of fly ash concrete (FAC) and recycled aggregate concrete (RAC) has been extensively tested in the past decade, but there are still no recommendations for their application in codes of practice. Therefore, the main objective of this study was to determine the minimum concrete cover depth of RAC and FAC exposed to carbonation to satisfy the required service life. In this study the relationship between concrete compressive strength at 28 days (fcm) and inverse effective carbonation resistance (R–1ACC) was established. The analysis was carried out on all data available in the literature in order to establish this relationship for FAC and RAC made with different replacement percentages. After establishing a relationship between R–1ACC and fcm, a prediction of the service life was made using the fib-Bulletin 34 (2006) prediction model for all exposure classes to carbonation. For same concrete class, it can be concluded that in the case of RAC there was no significant difference in the duration of the service life compared with natural aggregate concrete, even at 100% replacement of natural aggregate with recycled ones. For concrete up to 35% of fly ash in total cementitious materials, concrete cover for satisfying the required service life of 50 years was 40% higher compared with Portland cement concrete, and more than two times higher in case of concrete with 40–70% fly ash.",
publisher = "John Wiley & Sons Ltd",
journal = "Structural Concrete",
title = "Evaluation of Concrete Cover Depth for Green Concretes Exposed to Carbonation",
pages = "1021-1009",
volume = "Vol 22 (S1)",
doi = "10.1002/suco.202000086"
}

Carević, V.,& Ignjatović, I.. (2020). Evaluation of Concrete Cover Depth for Green Concretes Exposed to Carbonation. in Structural Concrete
John Wiley & Sons Ltd., Vol 22 (S1), 1009-1021.
https://doi.org/10.1002/suco.202000086

Carević V, Ignjatović I. Evaluation of Concrete Cover Depth for Green Concretes Exposed to Carbonation. in Structural Concrete. 2020;Vol 22 (S1):1009-1021.
doi:10.1002/suco.202000086 .

Carević, Vedran, Ignjatović, Ivan, "Evaluation of Concrete Cover Depth for Green Concretes Exposed to Carbonation" in Structural Concrete, Vol 22 (S1) (2020):1009-1021,
https://doi.org/10.1002/suco.202000086 . .

TY  - CONF
AU  - Ignjatović, Ivan
AU  - Carević, Vedran
AU  - Docevska, Marija
AU  - Markovski, Goran
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2086
AB  - Cases of unsatisfied duration of structure service life turn not to be so rare. In concrete structures, one of the key reasons for that is corrosion of embedded reinforcement that can be either chloride- or carbonation-induced. The later one has been reported to be a major durability problem for any infrastructure object exposed to carbon dioxide CO2. Such an example is the case study bridge considered in this paper - recently built RC bridge B7 on the railway section Bitola-Kremenica. The subject bridge is located in extremely CO2 rich environment. Thus, environmental conditions as well as in-built concrete quality were taken into account in order to examine if the recently built bridge meets the durability requirements, i.e. if the target service life of 100 years can be achieved. In order to quantify the key parameters in the numerical model for service life prediction, several laboratory and in-situ investigations were organized: (1) on-site measurement of CO2 concentration in the air; (2) compressive tests on concrete cores and (3) determination of carbonation resistance of concrete through accelerated carbonation tests (ACC). Direct phenolphthalein test showed that the samples were carbonated prior to placing in the carbonation chamber. Based on the results from the conducted ACC tests, the concrete represented by the two cores, was classified as low to moderate in terms of carbonation resistance. Using the collected results, durability analyses based on partial factor and probabilistic method were carried out to determine the required concrete cover from carbonation point of view. The outcomes of each analysis have shown that a hundred-year service life of the bridge can be achieved only with relatively thick concrete cover (more than 60mm). Additionally, the carbonation process can be minimized and slowed down by application of waterproof and vapor-permeable concrete coatings on the exposed concrete surfaces.
PB  - Macedonian Association of Structural Engineers
C3  - Proceedings of the 18th international symposium of MASE
T1  - Durability analysis of the bridge B7 on the railway line Bitola-Kremnica
EP  - 336
SP  - 325
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2086
ER  - 

@conference{
author = "Ignjatović, Ivan and Carević, Vedran and Docevska, Marija and Markovski, Goran",
year = "2019",
abstract = "Cases of unsatisfied duration of structure service life turn not to be so rare. In concrete structures, one of the key reasons for that is corrosion of embedded reinforcement that can be either chloride- or carbonation-induced. The later one has been reported to be a major durability problem for any infrastructure object exposed to carbon dioxide CO2. Such an example is the case study bridge considered in this paper - recently built RC bridge B7 on the railway section Bitola-Kremenica. The subject bridge is located in extremely CO2 rich environment. Thus, environmental conditions as well as in-built concrete quality were taken into account in order to examine if the recently built bridge meets the durability requirements, i.e. if the target service life of 100 years can be achieved. In order to quantify the key parameters in the numerical model for service life prediction, several laboratory and in-situ investigations were organized: (1) on-site measurement of CO2 concentration in the air; (2) compressive tests on concrete cores and (3) determination of carbonation resistance of concrete through accelerated carbonation tests (ACC). Direct phenolphthalein test showed that the samples were carbonated prior to placing in the carbonation chamber. Based on the results from the conducted ACC tests, the concrete represented by the two cores, was classified as low to moderate in terms of carbonation resistance. Using the collected results, durability analyses based on partial factor and probabilistic method were carried out to determine the required concrete cover from carbonation point of view. The outcomes of each analysis have shown that a hundred-year service life of the bridge can be achieved only with relatively thick concrete cover (more than 60mm). Additionally, the carbonation process can be minimized and slowed down by application of waterproof and vapor-permeable concrete coatings on the exposed concrete surfaces.",
publisher = "Macedonian Association of Structural Engineers",
journal = "Proceedings of the 18th international symposium of MASE",
title = "Durability analysis of the bridge B7 on the railway line Bitola-Kremnica",
pages = "336-325",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2086"
}

Ignjatović, I., Carević, V., Docevska, M.,& Markovski, G.. (2019). Durability analysis of the bridge B7 on the railway line Bitola-Kremnica. in Proceedings of the 18th international symposium of MASE
Macedonian Association of Structural Engineers., 325-336.
https://hdl.handle.net/21.15107/rcub_grafar_2086

Ignjatović I, Carević V, Docevska M, Markovski G. Durability analysis of the bridge B7 on the railway line Bitola-Kremnica. in Proceedings of the 18th international symposium of MASE. 2019;:325-336.
https://hdl.handle.net/21.15107/rcub_grafar_2086 .

Ignjatović, Ivan, Carević, Vedran, Docevska, Marija, Markovski, Goran, "Durability analysis of the bridge B7 on the railway line Bitola-Kremnica" in Proceedings of the 18th international symposium of MASE (2019):325-336,
https://hdl.handle.net/21.15107/rcub_grafar_2086 .

TY  - CONF
AU  - Carević, Vedran
AU  - Ignjatović, Ivan
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2083
AB  - The use of recycled concrete aggregate (RCA) for the production of new concrete can be a
promising solution for enormous use of raw materials, great energy consumption and large
waste production. However, durability of recycle aggregate concrete (RAC) remains as an
important issue regarding its sustainability. With relatively low tensile strength of concrete,
the cracking of structural elements is almost inevitable due to the effect of load, so the
influence of cracks on concrete durability also must be taken into consideration. Furthermore,
the real environmental impact on concrete elements is not only one but a combination of
different deterioration mechanisms. The influence of loading induced cracks (0.08 mm and
0.20 mm width) on natural or recycled aggregate concrete (NAC or RAC) resistance to salt
scaling and the impact of previous carbonation on the salt scaling resistance of both concrete
types was presented in this paper. Experimental results show that the presence of cracks on
the concrete surface can increase the salt scaling resistance. Both the crack width and a
number of cracks proved to be an important factor influencing concrete resistance to salt
scaling. Also, it is shown that previous carbonation of RAC decreases the salt scaling
resistance of concrete for more than 2.5 times.
PB  - RILEM Publications S.A.R.L.
C3  - RILEM Spring Convention and International Conference on Sustainable Materials, Systems and Structures (SMSS2019) Durability, Monitoring and Repair of Structures
T1  - The influence of cracks and carbonation level on the salt scaling resistance of natural and recycled aggregate concrete
EP  - 404
SP  - 397
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2083
ER  - 

@conference{
author = "Carević, Vedran and Ignjatović, Ivan",
year = "2019",
abstract = "The use of recycled concrete aggregate (RCA) for the production of new concrete can be a
promising solution for enormous use of raw materials, great energy consumption and large
waste production. However, durability of recycle aggregate concrete (RAC) remains as an
important issue regarding its sustainability. With relatively low tensile strength of concrete,
the cracking of structural elements is almost inevitable due to the effect of load, so the
influence of cracks on concrete durability also must be taken into consideration. Furthermore,
the real environmental impact on concrete elements is not only one but a combination of
different deterioration mechanisms. The influence of loading induced cracks (0.08 mm and
0.20 mm width) on natural or recycled aggregate concrete (NAC or RAC) resistance to salt
scaling and the impact of previous carbonation on the salt scaling resistance of both concrete
types was presented in this paper. Experimental results show that the presence of cracks on
the concrete surface can increase the salt scaling resistance. Both the crack width and a
number of cracks proved to be an important factor influencing concrete resistance to salt
scaling. Also, it is shown that previous carbonation of RAC decreases the salt scaling
resistance of concrete for more than 2.5 times.",
publisher = "RILEM Publications S.A.R.L.",
journal = "RILEM Spring Convention and International Conference on Sustainable Materials, Systems and Structures (SMSS2019) Durability, Monitoring and Repair of Structures",
title = "The influence of cracks and carbonation level on the salt scaling resistance of natural and recycled aggregate concrete",
pages = "404-397",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2083"
}

Carević, V.,& Ignjatović, I.. (2019). The influence of cracks and carbonation level on the salt scaling resistance of natural and recycled aggregate concrete. in RILEM Spring Convention and International Conference on Sustainable Materials, Systems and Structures (SMSS2019) Durability, Monitoring and Repair of Structures
RILEM Publications S.A.R.L.., 397-404.
https://hdl.handle.net/21.15107/rcub_grafar_2083

Carević V, Ignjatović I. The influence of cracks and carbonation level on the salt scaling resistance of natural and recycled aggregate concrete. in RILEM Spring Convention and International Conference on Sustainable Materials, Systems and Structures (SMSS2019) Durability, Monitoring and Repair of Structures. 2019;:397-404.
https://hdl.handle.net/21.15107/rcub_grafar_2083 .

Carević, Vedran, Ignjatović, Ivan, "The influence of cracks and carbonation level on the salt scaling resistance of natural and recycled aggregate concrete" in RILEM Spring Convention and International Conference on Sustainable Materials, Systems and Structures (SMSS2019) Durability, Monitoring and Repair of Structures (2019):397-404,
https://hdl.handle.net/21.15107/rcub_grafar_2083 .

TY  - JOUR
AU  - Carević, Vedran
AU  - Ignjatović, Ivan
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1732
AB  - In reinforced concrete (RC) structures, carbonation induced corrosion is one of the most significant durability issues. A very important factor that affects the carbonation process is the appearance of cracks in RC structures. According to the current state of the art, cracks have not yet been considered as a parameter in carbonation models which are used for defining the service life of concrete structures. The main objective of this research is to analyse the influence of cracked concrete cover as reinforcement protection. The analysis was carried out using own experimental results and the application of available standards and novel predictions regarding carbonation depth. For that purpose, prismatic RC samples without cracks and with different crack widths (0.05, 0.10, 0.15, 0.20 and 0.30 mm) were made and subjected to accelerated carbonation. The influence of carbonation depth on the corrosion of cracked and uncracked samples was analysed by observing the reduction of the reinforcement cross section. The compressive and tensile stress influence on carbonation resistance was also evaluated. The conducted analysis showed that even with low crack widths (0.05 mm) the maximum carbonation depth was significantly higher compared with uncracked samples. It was also shown that reduction in the reinforcing bar cross section after 28 days of exposure to 2% CO2 was between 0.05% and 0.13%, depending on the crack width. The results showed that compressive stress increase had no significant effect in the carbonation depth of samples.
PB  - Elsevier
T2  - Construction and Building Materials
T1  - Influence of Loading Cracks on the Carbonation Resistance of RC elements
SP  - 116583
VL  - 227
DO  - 10.1016/j.conbuildmat.2019.07.309
ER  - 

@article{
author = "Carević, Vedran and Ignjatović, Ivan",
year = "2019",
abstract = "In reinforced concrete (RC) structures, carbonation induced corrosion is one of the most significant durability issues. A very important factor that affects the carbonation process is the appearance of cracks in RC structures. According to the current state of the art, cracks have not yet been considered as a parameter in carbonation models which are used for defining the service life of concrete structures. The main objective of this research is to analyse the influence of cracked concrete cover as reinforcement protection. The analysis was carried out using own experimental results and the application of available standards and novel predictions regarding carbonation depth. For that purpose, prismatic RC samples without cracks and with different crack widths (0.05, 0.10, 0.15, 0.20 and 0.30 mm) were made and subjected to accelerated carbonation. The influence of carbonation depth on the corrosion of cracked and uncracked samples was analysed by observing the reduction of the reinforcement cross section. The compressive and tensile stress influence on carbonation resistance was also evaluated. The conducted analysis showed that even with low crack widths (0.05 mm) the maximum carbonation depth was significantly higher compared with uncracked samples. It was also shown that reduction in the reinforcing bar cross section after 28 days of exposure to 2% CO2 was between 0.05% and 0.13%, depending on the crack width. The results showed that compressive stress increase had no significant effect in the carbonation depth of samples.",
publisher = "Elsevier",
journal = "Construction and Building Materials",
title = "Influence of Loading Cracks on the Carbonation Resistance of RC elements",
pages = "116583",
volume = "227",
doi = "10.1016/j.conbuildmat.2019.07.309"
}

Carević, V.,& Ignjatović, I.. (2019). Influence of Loading Cracks on the Carbonation Resistance of RC elements. in Construction and Building Materials
Elsevier., 227, 116583.
https://doi.org/10.1016/j.conbuildmat.2019.07.309

Carević V, Ignjatović I. Influence of Loading Cracks on the Carbonation Resistance of RC elements. in Construction and Building Materials. 2019;227:116583.
doi:10.1016/j.conbuildmat.2019.07.309 .

Carević, Vedran, Ignjatović, Ivan, "Influence of Loading Cracks on the Carbonation Resistance of RC elements" in Construction and Building Materials, 227 (2019):116583,
https://doi.org/10.1016/j.conbuildmat.2019.07.309 . .

TY  - JOUR
AU  - Carević, Vedran
AU  - Ignjatović, Ivan
AU  - Dragaš, Jelena
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1712
AB  - The reuse of industrial residue streams such as fly ash (FA) or waste materials such as recycled concrete aggregate (RCA) can be beneficial both from an economic and an ecological point of view. Extensive research, investigating different properties of these concrete types, has been carried out so far. However, durability remains a key property ensuring sustainable application of these materials in the construction sector that still needs more research to be fully understood. The main objective of this study was to evaluate the application of widely used models for carbonation depth prediction—defined for ordinary Portland cement concrete with natural aggregate (NAC)—to high volume FA concrete (HVFAC) and recycled aggregate concrete (RAC). The research presented in this paper was conducted in two steps. First, an experimental programme was designed to provide better understanding of the influence of different CO2 concentrations on the carbonation process kinetics in HVFAC, RAC and NAC. This was performed using accelerated carbonation tests (CO2 concentrations of 1%, 2%, 4% and 16%) and natural carbonation tests (duration 21 and 48 months). Furthermore, a database of previously published results of HVFAC and NAC carbonation depths was made in order to analyse the application of carbonation depth prediction defined by Tuutti and given in the fib Model Code 2010. It was shown that the existing models, providing the relationship between accelerated test results and natural carbonation depth, are applicable to NAC and RAC but not to HVFAC. Modifications of the above mentioned models were proposed in order to enable a more accurate and reliable prediction of the HVFAC carbonation depth under natural exposure conditions.
PB  - Elsevier
T2  - Construction and Building Materials
T1  - Model for practical carbonation depth prediction for high volume fly ash concrete and recycled aggregate concrete
EP  - 208
SP  - 194
VL  - 213
DO  - 10.1016/j.conbuildmat.2019.03.267
ER  - 

@article{
author = "Carević, Vedran and Ignjatović, Ivan and Dragaš, Jelena",
year = "2019",
abstract = "The reuse of industrial residue streams such as fly ash (FA) or waste materials such as recycled concrete aggregate (RCA) can be beneficial both from an economic and an ecological point of view. Extensive research, investigating different properties of these concrete types, has been carried out so far. However, durability remains a key property ensuring sustainable application of these materials in the construction sector that still needs more research to be fully understood. The main objective of this study was to evaluate the application of widely used models for carbonation depth prediction—defined for ordinary Portland cement concrete with natural aggregate (NAC)—to high volume FA concrete (HVFAC) and recycled aggregate concrete (RAC). The research presented in this paper was conducted in two steps. First, an experimental programme was designed to provide better understanding of the influence of different CO2 concentrations on the carbonation process kinetics in HVFAC, RAC and NAC. This was performed using accelerated carbonation tests (CO2 concentrations of 1%, 2%, 4% and 16%) and natural carbonation tests (duration 21 and 48 months). Furthermore, a database of previously published results of HVFAC and NAC carbonation depths was made in order to analyse the application of carbonation depth prediction defined by Tuutti and given in the fib Model Code 2010. It was shown that the existing models, providing the relationship between accelerated test results and natural carbonation depth, are applicable to NAC and RAC but not to HVFAC. Modifications of the above mentioned models were proposed in order to enable a more accurate and reliable prediction of the HVFAC carbonation depth under natural exposure conditions.",
publisher = "Elsevier",
journal = "Construction and Building Materials",
title = "Model for practical carbonation depth prediction for high volume fly ash concrete and recycled aggregate concrete",
pages = "208-194",
volume = "213",
doi = "10.1016/j.conbuildmat.2019.03.267"
}

Carević, V., Ignjatović, I.,& Dragaš, J.. (2019). Model for practical carbonation depth prediction for high volume fly ash concrete and recycled aggregate concrete. in Construction and Building Materials
Elsevier., 213, 194-208.
https://doi.org/10.1016/j.conbuildmat.2019.03.267

Carević V, Ignjatović I, Dragaš J. Model for practical carbonation depth prediction for high volume fly ash concrete and recycled aggregate concrete. in Construction and Building Materials. 2019;213:194-208.
doi:10.1016/j.conbuildmat.2019.03.267 .

Carević, Vedran, Ignjatović, Ivan, Dragaš, Jelena, "Model for practical carbonation depth prediction for high volume fly ash concrete and recycled aggregate concrete" in Construction and Building Materials, 213 (2019):194-208,
https://doi.org/10.1016/j.conbuildmat.2019.03.267 . .