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Copper Slag of Pyroxene Composition as a Partial Replacement of Natural Aggregate for Concrete Production

Thumbnail
2021
minerals-11-00439.pdf (4.440Mb)
Authors
Filipović, Sandra
Đokić, Olivera
Radević, Aleksandar
Zakić, Dimitrije
Article (Published version)
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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.

Keywords:
Copper slag / recycled aggregate / natural aggregate / concrete / compressive strength / water permeability
Source:
Minerals, 2021, 11, 5
Publisher:
  • MDPI
Funding / projects:
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200092 (University of Belgrade, Faculty of Civil Engineering) (RS-200092)
Note:
  • This article belongs to the Special Issue Applied Petrography of Construction Materials

DOI: https://doi.org/10.3390/min11050439

ISSN: 2075-163X

[ Google Scholar ]
URI
https://grafar.grf.bg.ac.rs/handle/123456789/2351
Collections
  • Катедра за материјале и конструкције
Institution/Community
GraFar
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 . .

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