TY  - JOUR
AU  - Radonjanin, Vlastimir
AU  - Malešev, Mirjana
AU  - Marinković, Snežana
PY  - 2010
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/318
AB  - Characteristic of the 20th century, in terms of civil engineering, is intensive construction without taking care about preservation of the natural resources and the impact of buildings on the environment in all stages of service life, especially after demolition of buildings and waste deposition. Because of that, at the end of the last century, generation of huge amounts of waste became one of the biggest environmental problems in the majority of the world. Recycling of 'old' concrete is accepted as one of sustainable solutions for the problems of construction and demolition waste (C&D) and preservation of natural resources of aggregate. The first part of the paper presents technological procedure for recycled concrete aggregate production, basic properties of obtained aggregate and properties of recycled aggregate concrete. In the second part of the paper, results of own comparative investigation of properties of common and self-compacting concrete with coarse recycled concrete aggregate, are briefly presented. It was concluded that by using of quality uncontaminated recycled concrete aggregate it is possible to produce concrete with satisfactory performances that are not different from properties of ordinary concrete produced with natural aggregate. .
AB  - Karakteristika dvadesetog veka, sa aspekta građevinarstva, je intenzivna gradnja, pri čemu se nije dovoljno vodilo računa o očuvanju prirodnih resursa i o uticajima objekata na životnu sredinu u svim fazama eksploatacionog veka, zaključno sa rušenjem objekata i deponovanjem građevinskog otpada. Zbog toga je krajem dvadesetog veka otpad postao jedan od najvećih ekoloških problema u većini zemalja sveta. Kao održivo rešenje za probleme građevinskog otpada i iscrpljivanje nalazišta prirodnog agregata, prihvaćen je postupak recikliranja, u prvom redu 'starog' betona. U prvom delu radu prikazani su tehnološki postupci za dobijanje recikliranog agregata od otpadnog betona, osnovna svojstva agregata dobijenog usitnjavanjem 'starog' betona i svojstva betona na bazi recikliranog agregata. U drugom delu rada ukratko su prikazani rezultati sopstvenih komparativnih ispitivanja svojstava običnih i samougrađujućih betona sa prirodnim i sa recikliranim krupnim agregatom. Zaključeno je da se korišćenjem kvalitetnog čistog recikliranog agregata mogu dobiti betoni koji imaju zadovoljavajuće performanse koje se bitnije ne razlikuju od performansi betona sa prirodnim agregatom. .
PB  - Inženjersko društvo za koroziju, Beograd
T2  - Zaštita materijala
T1  - Possibility of application of old concrete as a new kind of aggregate in modern construction
T1  - Mogućnosti primene starog betona kao nove vrste agregata u savremenom građevinarstvu
EP  - 188
IS  - 3
SP  - 178
VL  - 51
UR  - https://hdl.handle.net/21.15107/rcub_grafar_318
ER  - 

@article{
author = "Radonjanin, Vlastimir and Malešev, Mirjana and Marinković, Snežana",
year = "2010",
abstract = "Characteristic of the 20th century, in terms of civil engineering, is intensive construction without taking care about preservation of the natural resources and the impact of buildings on the environment in all stages of service life, especially after demolition of buildings and waste deposition. Because of that, at the end of the last century, generation of huge amounts of waste became one of the biggest environmental problems in the majority of the world. Recycling of 'old' concrete is accepted as one of sustainable solutions for the problems of construction and demolition waste (C&D) and preservation of natural resources of aggregate. The first part of the paper presents technological procedure for recycled concrete aggregate production, basic properties of obtained aggregate and properties of recycled aggregate concrete. In the second part of the paper, results of own comparative investigation of properties of common and self-compacting concrete with coarse recycled concrete aggregate, are briefly presented. It was concluded that by using of quality uncontaminated recycled concrete aggregate it is possible to produce concrete with satisfactory performances that are not different from properties of ordinary concrete produced with natural aggregate. ., Karakteristika dvadesetog veka, sa aspekta građevinarstva, je intenzivna gradnja, pri čemu se nije dovoljno vodilo računa o očuvanju prirodnih resursa i o uticajima objekata na životnu sredinu u svim fazama eksploatacionog veka, zaključno sa rušenjem objekata i deponovanjem građevinskog otpada. Zbog toga je krajem dvadesetog veka otpad postao jedan od najvećih ekoloških problema u većini zemalja sveta. Kao održivo rešenje za probleme građevinskog otpada i iscrpljivanje nalazišta prirodnog agregata, prihvaćen je postupak recikliranja, u prvom redu 'starog' betona. U prvom delu radu prikazani su tehnološki postupci za dobijanje recikliranog agregata od otpadnog betona, osnovna svojstva agregata dobijenog usitnjavanjem 'starog' betona i svojstva betona na bazi recikliranog agregata. U drugom delu rada ukratko su prikazani rezultati sopstvenih komparativnih ispitivanja svojstava običnih i samougrađujućih betona sa prirodnim i sa recikliranim krupnim agregatom. Zaključeno je da se korišćenjem kvalitetnog čistog recikliranog agregata mogu dobiti betoni koji imaju zadovoljavajuće performanse koje se bitnije ne razlikuju od performansi betona sa prirodnim agregatom. .",
publisher = "Inženjersko društvo za koroziju, Beograd",
journal = "Zaštita materijala",
title = "Possibility of application of old concrete as a new kind of aggregate in modern construction, Mogućnosti primene starog betona kao nove vrste agregata u savremenom građevinarstvu",
pages = "188-178",
number = "3",
volume = "51",
url = "https://hdl.handle.net/21.15107/rcub_grafar_318"
}

Radonjanin, V., Malešev, M.,& Marinković, S.. (2010). Possibility of application of old concrete as a new kind of aggregate in modern construction. in Zaštita materijala
Inženjersko društvo za koroziju, Beograd., 51(3), 178-188.
https://hdl.handle.net/21.15107/rcub_grafar_318

Radonjanin V, Malešev M, Marinković S. Possibility of application of old concrete as a new kind of aggregate in modern construction. in Zaštita materijala. 2010;51(3):178-188.
https://hdl.handle.net/21.15107/rcub_grafar_318 .

Radonjanin, Vlastimir, Malešev, Mirjana, Marinković, Snežana, "Possibility of application of old concrete as a new kind of aggregate in modern construction" in Zaštita materijala, 51, no. 3 (2010):178-188,
https://hdl.handle.net/21.15107/rcub_grafar_318 .

TY  - JOUR
AU  - Marinković, Snežana
AU  - Radonjanin, Vlastimir
AU  - Malešev, Mirjana
AU  - Ignjatović, Ivan
PY  - 2010
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/303
AB  - Constant and rapid increase in construction and demolition (C&D) waste generation and consumption of natural aggregate for concrete production became one of the biggest environmental problems in the construction industry. Recycling of C&D waste represents one way to convert a waste product into a resource but the environment benefits through energy consumption, emissions and fallouts reductions are not certain. The main purpose of this study is to determine the potentials of recycled aggregate concrete (concrete made with recycled concrete aggregate) for structural applications and to compare the environmental impact of the production of two types of ready-mixed concrete: natural aggregate concrete (NAC) made entirely with river aggregate and recycled aggregate concrete (RAC) made with natural fine and recycled coarse aggregate. Based on the analysis of up-to-date experimental evidence, including own tests results, it is concluded that utilization of RAC for low-to-middle strength structural concrete and non-aggressive exposure conditions is technically feasible. The Life Cycle Assessment (LCA) is performed for raw material extraction and material production part of the concrete life cycle including transport. Assessment is based on local LCI data and on typical conditions in Serbia. Results of this specific case study show that impacts of aggregate and cement production phases are slightly larger for RAC than for NAC but the total environmental impacts depend on the natural and recycled aggregates transport distances and on transport types. Limit natural aggregate transport distances above which the environmental impacts of RAC can be equal or even lower than the impacts of NAC are calculated for the specific case study.
T2  - Waste Management
T1  - Comparative environmental assessment of natural and recycled aggregate concrete
EP  - 2264
IS  - 11
SP  - 2255
VL  - 30
DO  - 10.1016/j.wasman.2010.04.012
ER  - 

@article{
author = "Marinković, Snežana and Radonjanin, Vlastimir and Malešev, Mirjana and Ignjatović, Ivan",
year = "2010",
abstract = "Constant and rapid increase in construction and demolition (C&D) waste generation and consumption of natural aggregate for concrete production became one of the biggest environmental problems in the construction industry. Recycling of C&D waste represents one way to convert a waste product into a resource but the environment benefits through energy consumption, emissions and fallouts reductions are not certain. The main purpose of this study is to determine the potentials of recycled aggregate concrete (concrete made with recycled concrete aggregate) for structural applications and to compare the environmental impact of the production of two types of ready-mixed concrete: natural aggregate concrete (NAC) made entirely with river aggregate and recycled aggregate concrete (RAC) made with natural fine and recycled coarse aggregate. Based on the analysis of up-to-date experimental evidence, including own tests results, it is concluded that utilization of RAC for low-to-middle strength structural concrete and non-aggressive exposure conditions is technically feasible. The Life Cycle Assessment (LCA) is performed for raw material extraction and material production part of the concrete life cycle including transport. Assessment is based on local LCI data and on typical conditions in Serbia. Results of this specific case study show that impacts of aggregate and cement production phases are slightly larger for RAC than for NAC but the total environmental impacts depend on the natural and recycled aggregates transport distances and on transport types. Limit natural aggregate transport distances above which the environmental impacts of RAC can be equal or even lower than the impacts of NAC are calculated for the specific case study.",
journal = "Waste Management",
title = "Comparative environmental assessment of natural and recycled aggregate concrete",
pages = "2264-2255",
number = "11",
volume = "30",
doi = "10.1016/j.wasman.2010.04.012"
}

Marinković, S., Radonjanin, V., Malešev, M.,& Ignjatović, I.. (2010). Comparative environmental assessment of natural and recycled aggregate concrete. in Waste Management, 30(11), 2255-2264.
https://doi.org/10.1016/j.wasman.2010.04.012

Marinković S, Radonjanin V, Malešev M, Ignjatović I. Comparative environmental assessment of natural and recycled aggregate concrete. in Waste Management. 2010;30(11):2255-2264.
doi:10.1016/j.wasman.2010.04.012 .

Marinković, Snežana, Radonjanin, Vlastimir, Malešev, Mirjana, Ignjatović, Ivan, "Comparative environmental assessment of natural and recycled aggregate concrete" in Waste Management, 30, no. 11 (2010):2255-2264,
https://doi.org/10.1016/j.wasman.2010.04.012 . .

TY  - JOUR
AU  - Malešev, Mirjana
AU  - Radonjanin, Vlastimir
AU  - Marinković, Snežana
PY  - 2010
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/326
AB  - A comparative analysis of the experimental results of the properties of fresh and hardened concrete with different replacement ratios of natural with recycled coarse aggregate is presented in the paper. Recycled aggregate was made by crushing the waste concrete of laboratory test cubes and precast concrete columns. Three types of concrete mixtures were tested: concrete made entirely with natural aggregate (NAC) as a control concrete and two types of concrete made with natural fine and recycled coarse aggregate (50% and 100% replacement of coarse recycled aggregate). Ninety-nine specimens were made for the testing of the basic properties of hardened concrete. Load testing of reinforced concrete beams made of the investigated concrete types is also presented in the paper. Regardless of the replacement ratio, recycled aggregate concrete (RAC) had a satisfactory performance, which did not differ significantly from the performance of control concrete in this experimental research. However, for this to be fulfilled, it is necessary to use quality recycled concrete coarse aggregate and to follow the specific rules for design and production of this new concrete type.
PB  - MDPI AG
T2  - Sustainability
T1  - Recycled concrete as aggregate for structural concrete production
EP  - 1225
IS  - 5
SP  - 1204
VL  - 2
DO  - 10.3390/su2051204
ER  - 

@article{
author = "Malešev, Mirjana and Radonjanin, Vlastimir and Marinković, Snežana",
year = "2010",
abstract = "A comparative analysis of the experimental results of the properties of fresh and hardened concrete with different replacement ratios of natural with recycled coarse aggregate is presented in the paper. Recycled aggregate was made by crushing the waste concrete of laboratory test cubes and precast concrete columns. Three types of concrete mixtures were tested: concrete made entirely with natural aggregate (NAC) as a control concrete and two types of concrete made with natural fine and recycled coarse aggregate (50% and 100% replacement of coarse recycled aggregate). Ninety-nine specimens were made for the testing of the basic properties of hardened concrete. Load testing of reinforced concrete beams made of the investigated concrete types is also presented in the paper. Regardless of the replacement ratio, recycled aggregate concrete (RAC) had a satisfactory performance, which did not differ significantly from the performance of control concrete in this experimental research. However, for this to be fulfilled, it is necessary to use quality recycled concrete coarse aggregate and to follow the specific rules for design and production of this new concrete type.",
publisher = "MDPI AG",
journal = "Sustainability",
title = "Recycled concrete as aggregate for structural concrete production",
pages = "1225-1204",
number = "5",
volume = "2",
doi = "10.3390/su2051204"
}

Malešev, M., Radonjanin, V.,& Marinković, S.. (2010). Recycled concrete as aggregate for structural concrete production. in Sustainability
MDPI AG., 2(5), 1204-1225.
https://doi.org/10.3390/su2051204

Malešev M, Radonjanin V, Marinković S. Recycled concrete as aggregate for structural concrete production. in Sustainability. 2010;2(5):1204-1225.
doi:10.3390/su2051204 .

Malešev, Mirjana, Radonjanin, Vlastimir, Marinković, Snežana, "Recycled concrete as aggregate for structural concrete production" in Sustainability, 2, no. 5 (2010):1204-1225,
https://doi.org/10.3390/su2051204 . .

TY  - JOUR
AU  - Jevtić, Dragica
AU  - Zakić, Dimitrije
AU  - Savić, Aleksandar R.
PY  - 2009
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/277
AB  - This state-of-the-art paper deals with the differences in production technology of concrete made with recycled aggregate. The properties of recycled aggregate, as a component for new concrete production, are being analyzed in the first part of the paper as well as its specifics and distinctions in comparison to natural aggregate. Two-stage-mixing approaches, as a way to achieve concrete performance improvement, are also described and the examples of recycled aggregate concrete mixing with the addition of silica fume are given. The influence of variation of concrete component materials dosage is also analyzed. Further more, the examples of mortar component removal from recycled aggregate are described (e.g. with the aid of different acids) with the influence of this process on physical and mechanical properties of new concrete. Also, different ways of preparation of recycled aggregate (air-dried, water-saturated, surface-dry and oven-dried) are discussed. At the end, general guidelines for recycled aggregate concrete mix design are given.
AB  - Ovaj pregledni rad govori o specifičnostima tehnologije spravljanja betona na bazi recikliranog agregata. U prvom delu rada analiziraju se svojstva recikliranog agregata kao komponente za spravljanje novog betona, njegove specifičnosti i razlike u odnosu na prirodni agregat. Daju se opisi mešanja iz dve faze koje se primenjuje u cilju poboljšanja performansi novog betona, kao i primeri spravljanja betona na bazi recikliranog agregata sa dodatkom silikatne prašine. Analiziran je i uticaj promene redosleda doziranja sastavnih komponenata betona. Dalje, prikazani su primeri u kojima se opisuju načini uklanjanja malterske komponente sa recikliranog agregata, npr. pomoću različitih kiselina, sa uticajem na fizička i mehanička svojstva novodobijenih betona, a takođe i različiti načini pripreme recikliranog agregata (sušen na vazduhu, sušen u sušnici i vodomzasićen+površinski suv). Na kraju, prikazuju se generalne smernice za proces projektovanja sastava betona na bazi recikliranog agregata.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
T2  - Materijali i konstrukcije
T1  - Specific properties of recycled aggregate concrete production technology
T1  - Specifičnosti tehnologije spravljanja betona na bazi recikliranog agregata
EP  - 62
IS  - 1
SP  - 52
VL  - 52
UR  - https://hdl.handle.net/21.15107/rcub_grafar_277
ER  - 

@article{
author = "Jevtić, Dragica and Zakić, Dimitrije and Savić, Aleksandar R.",
year = "2009",
abstract = "This state-of-the-art paper deals with the differences in production technology of concrete made with recycled aggregate. The properties of recycled aggregate, as a component for new concrete production, are being analyzed in the first part of the paper as well as its specifics and distinctions in comparison to natural aggregate. Two-stage-mixing approaches, as a way to achieve concrete performance improvement, are also described and the examples of recycled aggregate concrete mixing with the addition of silica fume are given. The influence of variation of concrete component materials dosage is also analyzed. Further more, the examples of mortar component removal from recycled aggregate are described (e.g. with the aid of different acids) with the influence of this process on physical and mechanical properties of new concrete. Also, different ways of preparation of recycled aggregate (air-dried, water-saturated, surface-dry and oven-dried) are discussed. At the end, general guidelines for recycled aggregate concrete mix design are given., Ovaj pregledni rad govori o specifičnostima tehnologije spravljanja betona na bazi recikliranog agregata. U prvom delu rada analiziraju se svojstva recikliranog agregata kao komponente za spravljanje novog betona, njegove specifičnosti i razlike u odnosu na prirodni agregat. Daju se opisi mešanja iz dve faze koje se primenjuje u cilju poboljšanja performansi novog betona, kao i primeri spravljanja betona na bazi recikliranog agregata sa dodatkom silikatne prašine. Analiziran je i uticaj promene redosleda doziranja sastavnih komponenata betona. Dalje, prikazani su primeri u kojima se opisuju načini uklanjanja malterske komponente sa recikliranog agregata, npr. pomoću različitih kiselina, sa uticajem na fizička i mehanička svojstva novodobijenih betona, a takođe i različiti načini pripreme recikliranog agregata (sušen na vazduhu, sušen u sušnici i vodomzasićen+površinski suv). Na kraju, prikazuju se generalne smernice za proces projektovanja sastava betona na bazi recikliranog agregata.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd",
journal = "Materijali i konstrukcije",
title = "Specific properties of recycled aggregate concrete production technology, Specifičnosti tehnologije spravljanja betona na bazi recikliranog agregata",
pages = "62-52",
number = "1",
volume = "52",
url = "https://hdl.handle.net/21.15107/rcub_grafar_277"
}

Jevtić, D., Zakić, D.,& Savić, A. R.. (2009). Specific properties of recycled aggregate concrete production technology. in Materijali i konstrukcije
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd., 52(1), 52-62.
https://hdl.handle.net/21.15107/rcub_grafar_277

Jevtić D, Zakić D, Savić AR. Specific properties of recycled aggregate concrete production technology. in Materijali i konstrukcije. 2009;52(1):52-62.
https://hdl.handle.net/21.15107/rcub_grafar_277 .

Jevtić, Dragica, Zakić, Dimitrije, Savić, Aleksandar R., "Specific properties of recycled aggregate concrete production technology" in Materijali i konstrukcije, 52, no. 1 (2009):52-62,
https://hdl.handle.net/21.15107/rcub_grafar_277 .

TY  - JOUR
AU  - Ignjatović, Ivan
AU  - Marinković, Snežana
PY  - 2009
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/278
AB  - For the purpose of the environmental preservation and sustainable development, production of concrete made of recycled concrete rubble (recycled aggregate concrete-RAC) become more often. Results of experi­mental investigations of mechanical properties of RAC, performed in last 20 years, are presented in this paper. Test results of RAC compressive strength, tensile strength and elastic modulus are critically analyzed and compared. Comparison of natural aggregate concrete (NAC) and RAC properties is performed too, and differences and similarities are pointed out. Based on analyzed experimental results, it can be concluded that RAC has the future in structural applications. However, significant scatter of the test results points at a need for more experimental investigation of RAC properties, and especially, of structural elements made of RAC.
AB  - U cilju očuvanja životne sredine i održivog razvoja građevinarstva, u svetu se sve češće proizvode betoni na bazi agregata dobijenog recikliranjem građevinskog otpada, u prvom redu betona. U radu su prikazani rezultati eksperimentalnih istraživanja čvrstoće pri pritisku, zatezanje i modula elastičnosti betona na bazi recikliranog agregata. Korišćeni su numerički podaci iz istraživanja sprovedenih u poslednje dve decenije, kako bi se pronašle zakonitosti u ponašanju, uspostavile veze između pojedinih veličina i izveli odgovarajući zaključci. Izvršeno je poređenje sa karakteristikama betona na bazi prirodnog agregata i ukazano na sličnosti i razlike. Na osnovu zaključaka može se reći da reciklirani betoni imaju budućnost kao konstruktivni betoni, ali da je zbog značajnog osipanja dosadašnjih rezultata neophodno sprovesti dodatna eksperimentalna istraživanja i mehaničkih karakteristika betona i samih konstruktivnih elemenata od recikliranih betona.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
T2  - Materijali i konstrukcije
T1  - Mechanical properties of recycled aggregate concrete
T1  - Mehaničke karakteristike betona na bazi recikliranog agregata
EP  - 51
IS  - 1
SP  - 40
VL  - 52
UR  - https://hdl.handle.net/21.15107/rcub_grafar_278
ER  - 

@article{
author = "Ignjatović, Ivan and Marinković, Snežana",
year = "2009",
abstract = "For the purpose of the environmental preservation and sustainable development, production of concrete made of recycled concrete rubble (recycled aggregate concrete-RAC) become more often. Results of experi­mental investigations of mechanical properties of RAC, performed in last 20 years, are presented in this paper. Test results of RAC compressive strength, tensile strength and elastic modulus are critically analyzed and compared. Comparison of natural aggregate concrete (NAC) and RAC properties is performed too, and differences and similarities are pointed out. Based on analyzed experimental results, it can be concluded that RAC has the future in structural applications. However, significant scatter of the test results points at a need for more experimental investigation of RAC properties, and especially, of structural elements made of RAC., U cilju očuvanja životne sredine i održivog razvoja građevinarstva, u svetu se sve češće proizvode betoni na bazi agregata dobijenog recikliranjem građevinskog otpada, u prvom redu betona. U radu su prikazani rezultati eksperimentalnih istraživanja čvrstoće pri pritisku, zatezanje i modula elastičnosti betona na bazi recikliranog agregata. Korišćeni su numerički podaci iz istraživanja sprovedenih u poslednje dve decenije, kako bi se pronašle zakonitosti u ponašanju, uspostavile veze između pojedinih veličina i izveli odgovarajući zaključci. Izvršeno je poređenje sa karakteristikama betona na bazi prirodnog agregata i ukazano na sličnosti i razlike. Na osnovu zaključaka može se reći da reciklirani betoni imaju budućnost kao konstruktivni betoni, ali da je zbog značajnog osipanja dosadašnjih rezultata neophodno sprovesti dodatna eksperimentalna istraživanja i mehaničkih karakteristika betona i samih konstruktivnih elemenata od recikliranih betona.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd",
journal = "Materijali i konstrukcije",
title = "Mechanical properties of recycled aggregate concrete, Mehaničke karakteristike betona na bazi recikliranog agregata",
pages = "51-40",
number = "1",
volume = "52",
url = "https://hdl.handle.net/21.15107/rcub_grafar_278"
}

Ignjatović, I.,& Marinković, S.. (2009). Mechanical properties of recycled aggregate concrete. in Materijali i konstrukcije
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd., 52(1), 40-51.
https://hdl.handle.net/21.15107/rcub_grafar_278

Ignjatović I, Marinković S. Mechanical properties of recycled aggregate concrete. in Materijali i konstrukcije. 2009;52(1):40-51.
https://hdl.handle.net/21.15107/rcub_grafar_278 .

Ignjatović, Ivan, Marinković, Snežana, "Mechanical properties of recycled aggregate concrete" in Materijali i konstrukcije, 52, no. 1 (2009):40-51,
https://hdl.handle.net/21.15107/rcub_grafar_278 .

TY  - JOUR
AU  - Marinković, Snežana
AU  - Ignjatović, Ivan
AU  - Terzić, Anja
AU  - Pavlović, Ljubica
PY  - 2009
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/262
AB  - Aspects of environmental safety, sustainable development, natural resources preservation and proper disposal of construction and demolition waste impose recycling as an important production technology of the construction materials. Recycled concrete aggregates (RCA) are commonly used in lower quality product applications such as road base and backfills. However, this material is presently often not considered for higher quality product applications such as aggregate for structural concrete, because of many performance considerations and lack of proper codes and standards. Among all the properties of recycled aggregate concrete (RAC), microstructure and durability related properties are the most unknown ones. This paper presents the results of up-to-date research in this area. On the basis of analysis of test results it can be concluded that there is no major difference between the carbonization depth and chloride penetration of recycled aggregate concrete and natural aggregate concrete. No specific conclusions can be made for freezing and thawing resistance and susceptibility to alkali-aggregate reaction of RAC because of the lack of tests, so further research into these areas is needed. .
AB  - Aspekti očuvanja prirodne sredine, održivog razvoja, pravilnog raspolaganja prirodnim resursima i adekvatnog upravljanja građevinskim otpadom nameću recikliranje kao jedan od važnih postupaka u proizvodnji građevinskih materijala. Agregat dobijen recikliranjem otpadnog betona našao je veliku primenu kao podloga za puteve, nasipe i slično, ali njegova primena u konstrukcijskim betonima za sada je veoma ograničena. Osnovni razlozi su lošiji kvalitet ovog agregata u odnosu na prirodni, nedovoljno ispitana pojedina svojstva betona sa recikliranim agregatom, nedostatak tehničkih propisa i standarda. Najmanje poznata svojstva betona sa recikliranim agregatom su svojstva koja određuju trajnost ovih betona. U radu su prikazani rezultati dosadašnjih istraživanja mikrostrukture betona sa recikliranim agregatom, propustljivosti, otpornosti na karbonizaciju, otpornosti na dejstvo mraza, otpornosti na dejstvo hlorida i otpornosti na alkalno-agregatnu reakciju. Na osnovu analize postojećih rezultata može se zaključiti da je otpornost na karbonizaciju i otpornost na dejstvo hlorida betona sa recikliranim agregatom slična ovim svojstvima kod betona sa prirodnim agregatom, dok su za donošenje pouzdanih zaključaka o otpornosti na dejstvo mraza i alkalno-agregatnoj otpornosti ovih betona potrebna nova istraživanja. .
PB  - Udruženje inženjera građevinarstva, geotehnike, arhitekture i urbanista "Izgradnja", Beograd
T2  - Izgradnja
T1  - Microstructure and durability related properties of recycled aggregate concrete
T1  - Mikrostruktura i trajnost betona sa recikliranim agregatom
EP  - 533
IS  - 11-12
SP  - 523
VL  - 63
UR  - https://hdl.handle.net/21.15107/rcub_grafar_262
ER  - 

@article{
author = "Marinković, Snežana and Ignjatović, Ivan and Terzić, Anja and Pavlović, Ljubica",
year = "2009",
abstract = "Aspects of environmental safety, sustainable development, natural resources preservation and proper disposal of construction and demolition waste impose recycling as an important production technology of the construction materials. Recycled concrete aggregates (RCA) are commonly used in lower quality product applications such as road base and backfills. However, this material is presently often not considered for higher quality product applications such as aggregate for structural concrete, because of many performance considerations and lack of proper codes and standards. Among all the properties of recycled aggregate concrete (RAC), microstructure and durability related properties are the most unknown ones. This paper presents the results of up-to-date research in this area. On the basis of analysis of test results it can be concluded that there is no major difference between the carbonization depth and chloride penetration of recycled aggregate concrete and natural aggregate concrete. No specific conclusions can be made for freezing and thawing resistance and susceptibility to alkali-aggregate reaction of RAC because of the lack of tests, so further research into these areas is needed. ., Aspekti očuvanja prirodne sredine, održivog razvoja, pravilnog raspolaganja prirodnim resursima i adekvatnog upravljanja građevinskim otpadom nameću recikliranje kao jedan od važnih postupaka u proizvodnji građevinskih materijala. Agregat dobijen recikliranjem otpadnog betona našao je veliku primenu kao podloga za puteve, nasipe i slično, ali njegova primena u konstrukcijskim betonima za sada je veoma ograničena. Osnovni razlozi su lošiji kvalitet ovog agregata u odnosu na prirodni, nedovoljno ispitana pojedina svojstva betona sa recikliranim agregatom, nedostatak tehničkih propisa i standarda. Najmanje poznata svojstva betona sa recikliranim agregatom su svojstva koja određuju trajnost ovih betona. U radu su prikazani rezultati dosadašnjih istraživanja mikrostrukture betona sa recikliranim agregatom, propustljivosti, otpornosti na karbonizaciju, otpornosti na dejstvo mraza, otpornosti na dejstvo hlorida i otpornosti na alkalno-agregatnu reakciju. Na osnovu analize postojećih rezultata može se zaključiti da je otpornost na karbonizaciju i otpornost na dejstvo hlorida betona sa recikliranim agregatom slična ovim svojstvima kod betona sa prirodnim agregatom, dok su za donošenje pouzdanih zaključaka o otpornosti na dejstvo mraza i alkalno-agregatnoj otpornosti ovih betona potrebna nova istraživanja. .",
publisher = "Udruženje inženjera građevinarstva, geotehnike, arhitekture i urbanista "Izgradnja", Beograd",
journal = "Izgradnja",
title = "Microstructure and durability related properties of recycled aggregate concrete, Mikrostruktura i trajnost betona sa recikliranim agregatom",
pages = "533-523",
number = "11-12",
volume = "63",
url = "https://hdl.handle.net/21.15107/rcub_grafar_262"
}

Marinković, S., Ignjatović, I., Terzić, A.,& Pavlović, L.. (2009). Microstructure and durability related properties of recycled aggregate concrete. in Izgradnja
Udruženje inženjera građevinarstva, geotehnike, arhitekture i urbanista "Izgradnja", Beograd., 63(11-12), 523-533.
https://hdl.handle.net/21.15107/rcub_grafar_262

Marinković S, Ignjatović I, Terzić A, Pavlović L. Microstructure and durability related properties of recycled aggregate concrete. in Izgradnja. 2009;63(11-12):523-533.
https://hdl.handle.net/21.15107/rcub_grafar_262 .

Marinković, Snežana, Ignjatović, Ivan, Terzić, Anja, Pavlović, Ljubica, "Microstructure and durability related properties of recycled aggregate concrete" in Izgradnja, 63, no. 11-12 (2009):523-533,
https://hdl.handle.net/21.15107/rcub_grafar_262 .

TY  - JOUR
AU  - Marinković, Snežana
AU  - Ignjatović, Ivan
PY  - 2009
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/279
AB  - Recycling of waste concrete is one of the sustainable solutions for growing waste disposal crisis and depletion of natural aggregate sources. As a result of that process, recycled aggregate (RCA) is produced and it is used mostly in low-value application such as for pavement base. But from the viewpoint of promoting resource and energy saving and environmental preservation, it is essential to study if a concrete made of recycled aggregates - recycled aggregate concrete (RAC) can be effectively used as a structural material. Some experimental studies concerning flexural and shear behaviour of reinforced concrete beams made of recycled aggregate concrete are presented in this paper. Comparison of load-deflection behaviour, crack width and spacing, failure modes and ultimate bending and shear capacity of the beams made of natural (NAC) and recycled aggregate concrete is performed. On the basis of the limited reported test results, it is concluded that the behaviour of RAC beams made of concrete with only coarse aggregate recycled is satisfactory comparing to the behaviour of NAC beams, for service and ultimate short-term loading both. .
AB  - Jedno od održivih rešenja za probleme odlaganja građevinskog otpada i iscrpljivanje prirodnih nalazišta agregata predstavlja postupak recikliranja otpadnog betona. Kao rezultat, dobija se agregat od recikliranog betona (ARB) koji se najčešće koristi za nasipe, kao podloga puteva itd. Međutim, sa aspekta uštede prirodnih resursa i energije, kao i zaštite životne sredine, važno je istražiti da li se betoni na bazi recikilranog agregata (BRA) mogu koristiti kao konstrukcijski betoni. U radu su predstavljena dosadašnja eksperimentalna istraživanja ponašanja greda od BRA pod uticajem kratkotrajnog opterećenja, u fazi eksploatacije i fazi loma. Izvršena je uporedna analiza deformacijskih karakteristika (ugiba), stanja prslina (širina, razmak) i graničnih nosivosti greda od betona na bazi prirodnog agregata (BPA) i greda od betona na bazi recikliranog agregata. Na osnovu do sada izvršenog malog broja eksperimentalnih ispitivanja, može se zaključiti da je ponašanje greda od BRA kod kojih je samo krupni agregat bio recikliran, zadovoljavajuće u odnosu na ponašanje odgovarajućih greda od BPA, i to kako za eksploataciono, tako i za granično kratkotrajno opterećenje. .
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
T2  - Materijali i konstrukcije
T1  - Short-term behaviour of reinforced recycled aggregate concrete beams
T1  - Ponašanje armiranobetonskih greda od betona na bazi recikliranog agregata pod kratkotrajnim opterećenjem
EP  - 20
IS  - 1
SP  - 5
VL  - 52
UR  - https://hdl.handle.net/21.15107/rcub_grafar_279
ER  - 

@article{
author = "Marinković, Snežana and Ignjatović, Ivan",
year = "2009",
abstract = "Recycling of waste concrete is one of the sustainable solutions for growing waste disposal crisis and depletion of natural aggregate sources. As a result of that process, recycled aggregate (RCA) is produced and it is used mostly in low-value application such as for pavement base. But from the viewpoint of promoting resource and energy saving and environmental preservation, it is essential to study if a concrete made of recycled aggregates - recycled aggregate concrete (RAC) can be effectively used as a structural material. Some experimental studies concerning flexural and shear behaviour of reinforced concrete beams made of recycled aggregate concrete are presented in this paper. Comparison of load-deflection behaviour, crack width and spacing, failure modes and ultimate bending and shear capacity of the beams made of natural (NAC) and recycled aggregate concrete is performed. On the basis of the limited reported test results, it is concluded that the behaviour of RAC beams made of concrete with only coarse aggregate recycled is satisfactory comparing to the behaviour of NAC beams, for service and ultimate short-term loading both. ., Jedno od održivih rešenja za probleme odlaganja građevinskog otpada i iscrpljivanje prirodnih nalazišta agregata predstavlja postupak recikliranja otpadnog betona. Kao rezultat, dobija se agregat od recikliranog betona (ARB) koji se najčešće koristi za nasipe, kao podloga puteva itd. Međutim, sa aspekta uštede prirodnih resursa i energije, kao i zaštite životne sredine, važno je istražiti da li se betoni na bazi recikilranog agregata (BRA) mogu koristiti kao konstrukcijski betoni. U radu su predstavljena dosadašnja eksperimentalna istraživanja ponašanja greda od BRA pod uticajem kratkotrajnog opterećenja, u fazi eksploatacije i fazi loma. Izvršena je uporedna analiza deformacijskih karakteristika (ugiba), stanja prslina (širina, razmak) i graničnih nosivosti greda od betona na bazi prirodnog agregata (BPA) i greda od betona na bazi recikliranog agregata. Na osnovu do sada izvršenog malog broja eksperimentalnih ispitivanja, može se zaključiti da je ponašanje greda od BRA kod kojih je samo krupni agregat bio recikliran, zadovoljavajuće u odnosu na ponašanje odgovarajućih greda od BPA, i to kako za eksploataciono, tako i za granično kratkotrajno opterećenje. .",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd",
journal = "Materijali i konstrukcije",
title = "Short-term behaviour of reinforced recycled aggregate concrete beams, Ponašanje armiranobetonskih greda od betona na bazi recikliranog agregata pod kratkotrajnim opterećenjem",
pages = "20-5",
number = "1",
volume = "52",
url = "https://hdl.handle.net/21.15107/rcub_grafar_279"
}

Marinković, S.,& Ignjatović, I.. (2009). Short-term behaviour of reinforced recycled aggregate concrete beams. in Materijali i konstrukcije
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd., 52(1), 5-20.
https://hdl.handle.net/21.15107/rcub_grafar_279

Marinković S, Ignjatović I. Short-term behaviour of reinforced recycled aggregate concrete beams. in Materijali i konstrukcije. 2009;52(1):5-20.
https://hdl.handle.net/21.15107/rcub_grafar_279 .

Marinković, Snežana, Ignjatović, Ivan, "Short-term behaviour of reinforced recycled aggregate concrete beams" in Materijali i konstrukcije, 52, no. 1 (2009):5-20,
https://hdl.handle.net/21.15107/rcub_grafar_279 .