TY  - JOUR
AU  - Filipović, Sandra
AU  - Đokić, Olivera
AU  - Radević, Aleksandar
AU  - Zakić, Dimitrije
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2351
AB  - Copper slag, a by-product of the pyrometallurgical process used for obtaining copper from
copper ore in Bor, Serbia, contains mainly silicon, iron, calcium, and aluminium oxides. Due to
such properties, it is disposed of in landfills. Despite the favourable technical properties copper slag aggregates possess, such as low-water absorption (WA24 0.6%), low resistance to fragmentation (LA 10%), and low resistance to wear (MDE 4%), its use in the construction industry is still limited. The results of testing the technical properties of copper slag aggregates (CSAs) as a potential replacement for natural river aggregate (RA) are presented in this paper. The experiments included tests on three concrete mixtures with partial replacement of coarse natural aggregate with copper slag. The replacement of RA particle sizes of 8/16 mm and 16/31.5 mm with CSA in the amount of 20% + 50% and 50% + 50% resulted in an increase in the compressive strength of 12.4% and 10.5%, respectively. The increase of CSA content led to a decrease in water penetration resistance and salt-frost resistance of concrete, whereas the resistance to chloride ion penetration did not change significantly.
PB  - MDPI
T2  - Minerals
T1  - Copper Slag of Pyroxene Composition as a Partial Replacement of Natural Aggregate for Concrete Production
IS  - 5
VL  - 11
DO  - https://doi.org/10.3390/min11050439
ER  - 

@article{
author = "Filipović, Sandra and Đokić, Olivera and Radević, Aleksandar and Zakić, Dimitrije",
year = "2021",
abstract = "Copper slag, a by-product of the pyrometallurgical process used for obtaining copper from
copper ore in Bor, Serbia, contains mainly silicon, iron, calcium, and aluminium oxides. Due to
such properties, it is disposed of in landfills. Despite the favourable technical properties copper slag aggregates possess, such as low-water absorption (WA24 0.6%), low resistance to fragmentation (LA 10%), and low resistance to wear (MDE 4%), its use in the construction industry is still limited. The results of testing the technical properties of copper slag aggregates (CSAs) as a potential replacement for natural river aggregate (RA) are presented in this paper. The experiments included tests on three concrete mixtures with partial replacement of coarse natural aggregate with copper slag. The replacement of RA particle sizes of 8/16 mm and 16/31.5 mm with CSA in the amount of 20% + 50% and 50% + 50% resulted in an increase in the compressive strength of 12.4% and 10.5%, respectively. The increase of CSA content led to a decrease in water penetration resistance and salt-frost resistance of concrete, whereas the resistance to chloride ion penetration did not change significantly.",
publisher = "MDPI",
journal = "Minerals",
title = "Copper Slag of Pyroxene Composition as a Partial Replacement of Natural Aggregate for Concrete Production",
number = "5",
volume = "11",
doi = "https://doi.org/10.3390/min11050439"
}

Filipović, S., Đokić, O., Radević, A.,& Zakić, D.. (2021). Copper Slag of Pyroxene Composition as a Partial Replacement of Natural Aggregate for Concrete Production. in Minerals
MDPI., 11(5).
https://doi.org/https://doi.org/10.3390/min11050439

Filipović S, Đokić O, Radević A, Zakić D. Copper Slag of Pyroxene Composition as a Partial Replacement of Natural Aggregate for Concrete Production. in Minerals. 2021;11(5).
doi:https://doi.org/10.3390/min11050439 .

Filipović, Sandra, Đokić, Olivera, Radević, Aleksandar, Zakić, Dimitrije, "Copper Slag of Pyroxene Composition as a Partial Replacement of Natural Aggregate for Concrete Production" in Minerals, 11, no. 5 (2021),
https://doi.org/https://doi.org/10.3390/min11050439 . .

TY  - JOUR
AU  - Đokić, Olivera
AU  - Radević, Aleksandar
AU  - Zakić, Dimitrije
AU  - Đokić, Božidar
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2055
AB  - This study investigates the feasibility of using recycled concrete aggregate (RCA) as a partial substitution of natural aggregate in pavement engineering. Despite RCA’s good properties, such as polishing value and freeze-thaw resistance, its use is limited by low resistance to fragmentation and high-water absorption. This paper parent the experimental results of mineralogical-petrographic and physical-mechanical properties of RCA, natural stone (dolerite) and their combination (RCA content—15%, 30%, 45%, and 60%). The tested granular mixtures showed good resistance to fragmentation and wear (LA 22–27%, MDE 14–15%), as well as satisfactory Polished Stone Value of 55–57, which means they can be used in different layers of pavement structures. According to the obtained testing results, the application of RCA is possible in different flexible and rigid pavement layers and for various traffic loads.
PB  - MDPI
T2  - Minerals
T1  - Potential of Natural and Recycled Concrete Aggregate Mixtures for Use in Pavement Structures
IS  - 744
VL  - 10
DO  - https://doi.org/10.3390/min10090744
ER  - 

@article{
author = "Đokić, Olivera and Radević, Aleksandar and Zakić, Dimitrije and Đokić, Božidar",
year = "2020",
abstract = "This study investigates the feasibility of using recycled concrete aggregate (RCA) as a partial substitution of natural aggregate in pavement engineering. Despite RCA’s good properties, such as polishing value and freeze-thaw resistance, its use is limited by low resistance to fragmentation and high-water absorption. This paper parent the experimental results of mineralogical-petrographic and physical-mechanical properties of RCA, natural stone (dolerite) and their combination (RCA content—15%, 30%, 45%, and 60%). The tested granular mixtures showed good resistance to fragmentation and wear (LA 22–27%, MDE 14–15%), as well as satisfactory Polished Stone Value of 55–57, which means they can be used in different layers of pavement structures. According to the obtained testing results, the application of RCA is possible in different flexible and rigid pavement layers and for various traffic loads.",
publisher = "MDPI",
journal = "Minerals",
title = "Potential of Natural and Recycled Concrete Aggregate Mixtures for Use in Pavement Structures",
number = "744",
volume = "10",
doi = "https://doi.org/10.3390/min10090744"
}

Đokić, O., Radević, A., Zakić, D.,& Đokić, B.. (2020). Potential of Natural and Recycled Concrete Aggregate Mixtures for Use in Pavement Structures. in Minerals
MDPI., 10(744).
https://doi.org/https://doi.org/10.3390/min10090744

Đokić O, Radević A, Zakić D, Đokić B. Potential of Natural and Recycled Concrete Aggregate Mixtures for Use in Pavement Structures. in Minerals. 2020;10(744).
doi:https://doi.org/10.3390/min10090744 .

Đokić, Olivera, Radević, Aleksandar, Zakić, Dimitrije, Đokić, Božidar, "Potential of Natural and Recycled Concrete Aggregate Mixtures for Use in Pavement Structures" in Minerals, 10, no. 744 (2020),
https://doi.org/https://doi.org/10.3390/min10090744 . .