Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200135 (University of Belgrade, Faculty of Technology and Metallurgy)

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Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200135 (University of Belgrade, Faculty of Technology and Metallurgy) (en)
Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije, Ugovor br. 451-03-68/2020-14/200135 (Univerzitet u Beogradu, Tehnološko-metalurški fakultet) (sr_RS)
Министарство просвете, науке и технолошког развоја Републике Србије, Уговор бр. 451-03-68/2020-14/200135 (Универзитет у Београду, Технолошко-металуршки факултет) (sr)
Authors

Publications

Development of the Apparatus for In Situ Testing of Solar Panel Racking Anchors

Broćeta, Gordana; Savić, Aleksandar R.; Vlahović, Milica; Martinović, Sanja; Volkov Husovic, Tatjana

(Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) Society for Renewable Electrical Power Sources Kneza Miloša str. 7a/II, 11000 Beograd, 2023)

TY  - CONF
AU  - Broćeta, Gordana
AU  - Savić, Aleksandar R.
AU  - Vlahović, Milica
AU  - Martinović, Sanja
AU  - Volkov Husovic, Tatjana
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3294
AB  - In certain cases, solar panels are placed on suitable structures that are supported on the ground,
and this includes the appropriate dimensioning of anchor supports, i.e. suppor elements, within the
framework of the concrete construction project. Bearing in mind the great variations in soil qualiy
and different ambient conditions that depend on the location, different ways of dimensioning have
been developed, from experiential, through those defined based on soil conditions and theoretical
models, and to numerical ones characterized by the appropriate degree of accuracy. The paper
presents the principle of in situ testing of the load capacity of trial anchors using specially
developed apparatus, in order to check the designed conditions and possible correction of this part
of the construction project.
PB  - Union of Mechanical and   Electrotechnical Engineers and   Technicians of Serbia (SMEITS)  Society for Renewable Electrical   Power Sources  Kneza Miloša str. 7a/II,   11000 Beograd
C3  - Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, 2-3 November, 2023
T1  - Development of the Apparatus for In Situ Testing of Solar Panel Racking Anchors
EP  - 501
SP  - 495
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3294
ER  - 
@conference{
author = "Broćeta, Gordana and Savić, Aleksandar R. and Vlahović, Milica and Martinović, Sanja and Volkov Husovic, Tatjana",
year = "2023",
abstract = "In certain cases, solar panels are placed on suitable structures that are supported on the ground,
and this includes the appropriate dimensioning of anchor supports, i.e. suppor elements, within the
framework of the concrete construction project. Bearing in mind the great variations in soil qualiy
and different ambient conditions that depend on the location, different ways of dimensioning have
been developed, from experiential, through those defined based on soil conditions and theoretical
models, and to numerical ones characterized by the appropriate degree of accuracy. The paper
presents the principle of in situ testing of the load capacity of trial anchors using specially
developed apparatus, in order to check the designed conditions and possible correction of this part
of the construction project.",
publisher = "Union of Mechanical and   Electrotechnical Engineers and   Technicians of Serbia (SMEITS)  Society for Renewable Electrical   Power Sources  Kneza Miloša str. 7a/II,   11000 Beograd",
journal = "Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, 2-3 November, 2023",
title = "Development of the Apparatus for In Situ Testing of Solar Panel Racking Anchors",
pages = "501-495",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3294"
}
Broćeta, G., Savić, A. R., Vlahović, M., Martinović, S.,& Volkov Husovic, T.. (2023). Development of the Apparatus for In Situ Testing of Solar Panel Racking Anchors. in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, 2-3 November, 2023
Union of Mechanical and   Electrotechnical Engineers and   Technicians of Serbia (SMEITS)  Society for Renewable Electrical   Power Sources  Kneza Miloša str. 7a/II,   11000 Beograd., 495-501.
https://hdl.handle.net/21.15107/rcub_grafar_3294
Broćeta G, Savić AR, Vlahović M, Martinović S, Volkov Husovic T. Development of the Apparatus for In Situ Testing of Solar Panel Racking Anchors. in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, 2-3 November, 2023. 2023;:495-501.
https://hdl.handle.net/21.15107/rcub_grafar_3294 .
Broćeta, Gordana, Savić, Aleksandar R., Vlahović, Milica, Martinović, Sanja, Volkov Husovic, Tatjana, "Development of the Apparatus for In Situ Testing of Solar Panel Racking Anchors" in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, 2-3 November, 2023 (2023):495-501,
https://hdl.handle.net/21.15107/rcub_grafar_3294 .

Principal Component Analysis of Morphological Descriptors for Assessment of Surface Defects Induced by Extreme Conditions

Martinović, Sanja; Alil, Ana; Savić, Aleksandar R.; Glišić, Dragomir; Živojinović, Dragana; Volkov Husovic, Tatjana

(Association of Metallurgical Engineers of Serbia (AMES), Kneza Miloša 9/IV, 11000 Belgrade, Serbia, 2023)

TY  - CONF
AU  - Martinović, Sanja
AU  - Alil, Ana
AU  - Savić, Aleksandar R.
AU  - Glišić, Dragomir
AU  - Živojinović, Dragana
AU  - Volkov Husovic, Tatjana
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3280
AB  - Implementation of statistical analysis for monitoring the formation and propagation of defects that occurred due to exposure of the material to thermal shock and cavitation is presented in this study. Results of two groups of materials are shown: refractory concrete sintered at three temperatures and ceramic materials based on cordierite and zircon. Alumina- based refractory concretes were subjected to thermal stability test, while the surface morphological changes regarding the defects were monitored after a certain number of thermal shock cycles. Cordierite and zircon based materials were initially subjected to cavitation testing while after specified time periods, morphological changes in the surface defects were analyzed. Besides the standardized methods, non-destructive testing of materials was applied for monitoring the surface changes. Cameras, microscopes, and numerous software enable recording images of sample surface with appropriate magnifications as well as monitoring and quantifying the surface damage degree with various image analysis tools. Thus, this approach offers the quantification of selected morphological descriptors regarding the defects. Obtained values were then subjected to pattern recognition method, the principal component analysis that can provide information on extracted morphological descriptors by describing the main difference among observed defects and identifying variations among them. As a result, a better insight into surface degradation that occurs during exposure to extreme conditions was obtained. The multivariate analysis provided grouping and thus reduction of the descriptors while maintaining the highest percentage of variance unchangeable. More precisely, the analysis extracted the most informative descriptors that should be observed for monitoring changes in surface defects and determining a degradation mechanism.
PB  - Association of Metallurgical Engineers of Serbia (AMES), Kneza Miloša 9/IV, 11000 Belgrade, Serbia
C3  - Congress proceedings - MME SEE 2023 5th Metallurgical & Materials Engineering Congress of South-East Europe
T1  - Principal Component Analysis of Morphological Descriptors for Assessment of Surface Defects Induced by Extreme Conditions
EP  - 170
SP  - 164
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3280
ER  - 
@conference{
author = "Martinović, Sanja and Alil, Ana and Savić, Aleksandar R. and Glišić, Dragomir and Živojinović, Dragana and Volkov Husovic, Tatjana",
year = "2023",
abstract = "Implementation of statistical analysis for monitoring the formation and propagation of defects that occurred due to exposure of the material to thermal shock and cavitation is presented in this study. Results of two groups of materials are shown: refractory concrete sintered at three temperatures and ceramic materials based on cordierite and zircon. Alumina- based refractory concretes were subjected to thermal stability test, while the surface morphological changes regarding the defects were monitored after a certain number of thermal shock cycles. Cordierite and zircon based materials were initially subjected to cavitation testing while after specified time periods, morphological changes in the surface defects were analyzed. Besides the standardized methods, non-destructive testing of materials was applied for monitoring the surface changes. Cameras, microscopes, and numerous software enable recording images of sample surface with appropriate magnifications as well as monitoring and quantifying the surface damage degree with various image analysis tools. Thus, this approach offers the quantification of selected morphological descriptors regarding the defects. Obtained values were then subjected to pattern recognition method, the principal component analysis that can provide information on extracted morphological descriptors by describing the main difference among observed defects and identifying variations among them. As a result, a better insight into surface degradation that occurs during exposure to extreme conditions was obtained. The multivariate analysis provided grouping and thus reduction of the descriptors while maintaining the highest percentage of variance unchangeable. More precisely, the analysis extracted the most informative descriptors that should be observed for monitoring changes in surface defects and determining a degradation mechanism.",
publisher = "Association of Metallurgical Engineers of Serbia (AMES), Kneza Miloša 9/IV, 11000 Belgrade, Serbia",
journal = "Congress proceedings - MME SEE 2023 5th Metallurgical & Materials Engineering Congress of South-East Europe",
title = "Principal Component Analysis of Morphological Descriptors for Assessment of Surface Defects Induced by Extreme Conditions",
pages = "170-164",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3280"
}
Martinović, S., Alil, A., Savić, A. R., Glišić, D., Živojinović, D.,& Volkov Husovic, T.. (2023). Principal Component Analysis of Morphological Descriptors for Assessment of Surface Defects Induced by Extreme Conditions. in Congress proceedings - MME SEE 2023 5th Metallurgical & Materials Engineering Congress of South-East Europe
Association of Metallurgical Engineers of Serbia (AMES), Kneza Miloša 9/IV, 11000 Belgrade, Serbia., 164-170.
https://hdl.handle.net/21.15107/rcub_grafar_3280
Martinović S, Alil A, Savić AR, Glišić D, Živojinović D, Volkov Husovic T. Principal Component Analysis of Morphological Descriptors for Assessment of Surface Defects Induced by Extreme Conditions. in Congress proceedings - MME SEE 2023 5th Metallurgical & Materials Engineering Congress of South-East Europe. 2023;:164-170.
https://hdl.handle.net/21.15107/rcub_grafar_3280 .
Martinović, Sanja, Alil, Ana, Savić, Aleksandar R., Glišić, Dragomir, Živojinović, Dragana, Volkov Husovic, Tatjana, "Principal Component Analysis of Morphological Descriptors for Assessment of Surface Defects Induced by Extreme Conditions" in Congress proceedings - MME SEE 2023 5th Metallurgical & Materials Engineering Congress of South-East Europe (2023):164-170,
https://hdl.handle.net/21.15107/rcub_grafar_3280 .

Morphology Investigation of Sulfur-Polymer Composite

Vlahović, Milica; Tee, Kong Fah; Savić, Aleksandar R.; Đorđević, Nataša; Mihajlović, Slavica; Volkov Husovic, Tatjana; Vušović, Nenad

(Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) Society for Renewable Electrical Power Sources Kneza Miloša str. 7a/II, 11000 Beograd, 2023)

TY  - CONF
AU  - Vlahović, Milica
AU  - Tee, Kong Fah
AU  - Savić, Aleksandar R.
AU  - Đorđević, Nataša
AU  - Mihajlović, Slavica
AU  - Volkov Husovic, Tatjana
AU  - Vušović, Nenad
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3293
AB  - This research evaluates the effects of the acid environment on sulfur-polymer composite. For this
purpose, a morphology investigation consisting of mathematical morphology analysis and SEM
analysis was performed Based on the obtained results, insignificant changes in the pore system of
sulfur-polymer composite in terms of deterioration, pore distribution, and homogeneity were
observed. Namely, no signs of severe damage were detected at the surface and inside the samples.
With increasing the acid exposure time, the material exhibited further changes in the direction of
homogenization and drowning of the aggregate in the sulfur binder compared with the starting
structure. These facts indicate that sulfur-polymer composite can be effectively used as a
construction material in an acid environment.
PB  - Union of Mechanical and   Electrotechnical Engineers and   Technicians of Serbia (SMEITS)  Society for Renewable Electrical   Power Sources  Kneza Miloša str. 7a/II,   11000 Beograd
C3  - Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, 2-3 November, 2023
T1  - Morphology Investigation of Sulfur-Polymer Composite
EP  - 519
SP  - 513
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3293
ER  - 
@conference{
author = "Vlahović, Milica and Tee, Kong Fah and Savić, Aleksandar R. and Đorđević, Nataša and Mihajlović, Slavica and Volkov Husovic, Tatjana and Vušović, Nenad",
year = "2023",
abstract = "This research evaluates the effects of the acid environment on sulfur-polymer composite. For this
purpose, a morphology investigation consisting of mathematical morphology analysis and SEM
analysis was performed Based on the obtained results, insignificant changes in the pore system of
sulfur-polymer composite in terms of deterioration, pore distribution, and homogeneity were
observed. Namely, no signs of severe damage were detected at the surface and inside the samples.
With increasing the acid exposure time, the material exhibited further changes in the direction of
homogenization and drowning of the aggregate in the sulfur binder compared with the starting
structure. These facts indicate that sulfur-polymer composite can be effectively used as a
construction material in an acid environment.",
publisher = "Union of Mechanical and   Electrotechnical Engineers and   Technicians of Serbia (SMEITS)  Society for Renewable Electrical   Power Sources  Kneza Miloša str. 7a/II,   11000 Beograd",
journal = "Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, 2-3 November, 2023",
title = "Morphology Investigation of Sulfur-Polymer Composite",
pages = "519-513",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3293"
}
Vlahović, M., Tee, K. F., Savić, A. R., Đorđević, N., Mihajlović, S., Volkov Husovic, T.,& Vušović, N.. (2023). Morphology Investigation of Sulfur-Polymer Composite. in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, 2-3 November, 2023
Union of Mechanical and   Electrotechnical Engineers and   Technicians of Serbia (SMEITS)  Society for Renewable Electrical   Power Sources  Kneza Miloša str. 7a/II,   11000 Beograd., 513-519.
https://hdl.handle.net/21.15107/rcub_grafar_3293
Vlahović M, Tee KF, Savić AR, Đorđević N, Mihajlović S, Volkov Husovic T, Vušović N. Morphology Investigation of Sulfur-Polymer Composite. in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, 2-3 November, 2023. 2023;:513-519.
https://hdl.handle.net/21.15107/rcub_grafar_3293 .
Vlahović, Milica, Tee, Kong Fah, Savić, Aleksandar R., Đorđević, Nataša, Mihajlović, Slavica, Volkov Husovic, Tatjana, Vušović, Nenad, "Morphology Investigation of Sulfur-Polymer Composite" in Proceedings / 11th International Conference on Renewable Electrical Power Sources, Belgrade, 2-3 November, 2023 (2023):513-519,
https://hdl.handle.net/21.15107/rcub_grafar_3293 .

Properties of Green Self-Compacting Concrete Designed by Particle Packing Density Method

Vasić, Milan; Savić, Aleksandar; Martinović, Sanja; Vlahović, Milica; Volkov Husovic, Tatjana

(Association for Promotion of Holistic Approach to Environment, 2023)

TY  - JOUR
AU  - Vasić, Milan
AU  - Savić, Aleksandar
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Volkov Husovic, Tatjana
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3305
AB  - Since depletion of natural resources and the amount of construction and demolition waste have overcome the socially and environmentally acceptable level, the construction industry must address this issue and reduce its impact on the environment. A step towards sustainability in the construction industry is the application of recycled aggregates and supplementary cementitious materials as integral components of concretes, which provides conserving natural aggregates and waste reduction. This study adopts a holistic approach to producing green self-compacting concrete with the highest portion of recycled aggregate as a replacement for natural aggregate and fly ash as filler. Based on the particle packing density method, four series of self-compacting concrete were prepared: the first series was made with natural fine and coarse aggregate, the second series was made with fine natural aggregate and recycled coarse aggregate, the third with 50 % (by mass) of fine natural aggregate replaced by recycled fine aggregate and recycled coarse aggregate, and the fourth series completely with recycled fine and coarse aggregate. The content of fly ash remained constant. Regardless of the expected decrease of workability in a fresh state with the increase of the recycled aggregate content, all series exceeded the requirements set for the hardened structural concrete.
PB  - Association for Promotion of Holistic Approach to Environment
T2  - The Holistic Approach to Environment
T1  - Properties of Green Self-Compacting Concrete Designed by Particle Packing Density Method
EP  - 82
IS  - 2
SP  - 40
VL  - 13
DO  - 10.33765/thate.13.2.1
ER  - 
@article{
author = "Vasić, Milan and Savić, Aleksandar and Martinović, Sanja and Vlahović, Milica and Volkov Husovic, Tatjana",
year = "2023",
abstract = "Since depletion of natural resources and the amount of construction and demolition waste have overcome the socially and environmentally acceptable level, the construction industry must address this issue and reduce its impact on the environment. A step towards sustainability in the construction industry is the application of recycled aggregates and supplementary cementitious materials as integral components of concretes, which provides conserving natural aggregates and waste reduction. This study adopts a holistic approach to producing green self-compacting concrete with the highest portion of recycled aggregate as a replacement for natural aggregate and fly ash as filler. Based on the particle packing density method, four series of self-compacting concrete were prepared: the first series was made with natural fine and coarse aggregate, the second series was made with fine natural aggregate and recycled coarse aggregate, the third with 50 % (by mass) of fine natural aggregate replaced by recycled fine aggregate and recycled coarse aggregate, and the fourth series completely with recycled fine and coarse aggregate. The content of fly ash remained constant. Regardless of the expected decrease of workability in a fresh state with the increase of the recycled aggregate content, all series exceeded the requirements set for the hardened structural concrete.",
publisher = "Association for Promotion of Holistic Approach to Environment",
journal = "The Holistic Approach to Environment",
title = "Properties of Green Self-Compacting Concrete Designed by Particle Packing Density Method",
pages = "82-40",
number = "2",
volume = "13",
doi = "10.33765/thate.13.2.1"
}
Vasić, M., Savić, A., Martinović, S., Vlahović, M.,& Volkov Husovic, T.. (2023). Properties of Green Self-Compacting Concrete Designed by Particle Packing Density Method. in The Holistic Approach to Environment
Association for Promotion of Holistic Approach to Environment., 13(2), 40-82.
https://doi.org/10.33765/thate.13.2.1
Vasić M, Savić A, Martinović S, Vlahović M, Volkov Husovic T. Properties of Green Self-Compacting Concrete Designed by Particle Packing Density Method. in The Holistic Approach to Environment. 2023;13(2):40-82.
doi:10.33765/thate.13.2.1 .
Vasić, Milan, Savić, Aleksandar, Martinović, Sanja, Vlahović, Milica, Volkov Husovic, Tatjana, "Properties of Green Self-Compacting Concrete Designed by Particle Packing Density Method" in The Holistic Approach to Environment, 13, no. 2 (2023):40-82,
https://doi.org/10.33765/thate.13.2.1 . .