Durability characteristics of geopolymer concrete produced using gold ore tailings along with recycled coarse aggregates

Abstract The Gold Ore Tailings (GOTs) are one of the major waste materials in the mining sector. The disposal of these tailings could be a problem for human health and a major environmental concern for several years. In this research work, the GOTs were used as an alternative material to the River S...

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Main Authors: Eshwarayya Bolluru Lokesha, Mangalpady Aruna, Sandi Kumar Reddy
Format: Article
Language:English
Published: Nature Portfolio 2025-04-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-97056-6
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author Eshwarayya Bolluru Lokesha
Mangalpady Aruna
Sandi Kumar Reddy
author_facet Eshwarayya Bolluru Lokesha
Mangalpady Aruna
Sandi Kumar Reddy
author_sort Eshwarayya Bolluru Lokesha
collection DOAJ
description Abstract The Gold Ore Tailings (GOTs) are one of the major waste materials in the mining sector. The disposal of these tailings could be a problem for human health and a major environmental concern for several years. In this research work, the GOTs were used as an alternative material to the River Sand (RS) in the production of Geopolymer Concrete (GPC). Thus developed GPC samples were tested for its durability characteristics, such as resistance to sulphates and chlorides. The sulphate attack test was conducted by immersing the Conventional Concrete (CC) and GPC samples in 5% Magnesium Sulphate (MgSO4) solution for various curing periods. In this test, the GPC samples showed a reduction in compressive strength and weight, which is slightly more when compared to CC samples. The Rapid Chloride Penetration Test (RCPT) was also conducted to know the chloride ion penetration in which GPC samples exhibited less chloride penetration when compared to CC samples. Further, the Toxic Characteristic Leaching Procedure (TCLP) analysis showed that the GOTs have very high concentrations of hazardous metals. However, the concentration of Cyanide (CN−) was minimal in GOTs. In this regard, geopolymerization would be a better method for immobilizing the hazardous metals in GOTs.
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publishDate 2025-04-01
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spelling doaj-art-9edd869efc7f49328fc91de768a4018e2025-08-20T03:10:06ZengNature PortfolioScientific Reports2045-23222025-04-0115111210.1038/s41598-025-97056-6Durability characteristics of geopolymer concrete produced using gold ore tailings along with recycled coarse aggregatesEshwarayya Bolluru Lokesha0Mangalpady Aruna1Sandi Kumar Reddy2Dept. of Mining Engineering, National Institute of TechnologyDept. of Mining Engineering, National Institute of TechnologyDept. of Mining Engineering, National Institute of TechnologyAbstract The Gold Ore Tailings (GOTs) are one of the major waste materials in the mining sector. The disposal of these tailings could be a problem for human health and a major environmental concern for several years. In this research work, the GOTs were used as an alternative material to the River Sand (RS) in the production of Geopolymer Concrete (GPC). Thus developed GPC samples were tested for its durability characteristics, such as resistance to sulphates and chlorides. The sulphate attack test was conducted by immersing the Conventional Concrete (CC) and GPC samples in 5% Magnesium Sulphate (MgSO4) solution for various curing periods. In this test, the GPC samples showed a reduction in compressive strength and weight, which is slightly more when compared to CC samples. The Rapid Chloride Penetration Test (RCPT) was also conducted to know the chloride ion penetration in which GPC samples exhibited less chloride penetration when compared to CC samples. Further, the Toxic Characteristic Leaching Procedure (TCLP) analysis showed that the GOTs have very high concentrations of hazardous metals. However, the concentration of Cyanide (CN−) was minimal in GOTs. In this regard, geopolymerization would be a better method for immobilizing the hazardous metals in GOTs.https://doi.org/10.1038/s41598-025-97056-6Gepolymer concreteGold ore tailingsDurability
spellingShingle Eshwarayya Bolluru Lokesha
Mangalpady Aruna
Sandi Kumar Reddy
Durability characteristics of geopolymer concrete produced using gold ore tailings along with recycled coarse aggregates
Scientific Reports
Gepolymer concrete
Gold ore tailings
Durability
title Durability characteristics of geopolymer concrete produced using gold ore tailings along with recycled coarse aggregates
title_full Durability characteristics of geopolymer concrete produced using gold ore tailings along with recycled coarse aggregates
title_fullStr Durability characteristics of geopolymer concrete produced using gold ore tailings along with recycled coarse aggregates
title_full_unstemmed Durability characteristics of geopolymer concrete produced using gold ore tailings along with recycled coarse aggregates
title_short Durability characteristics of geopolymer concrete produced using gold ore tailings along with recycled coarse aggregates
title_sort durability characteristics of geopolymer concrete produced using gold ore tailings along with recycled coarse aggregates
topic Gepolymer concrete
Gold ore tailings
Durability
url https://doi.org/10.1038/s41598-025-97056-6
work_keys_str_mv AT eshwarayyabollurulokesha durabilitycharacteristicsofgeopolymerconcreteproducedusinggoldoretailingsalongwithrecycledcoarseaggregates
AT mangalpadyaruna durabilitycharacteristicsofgeopolymerconcreteproducedusinggoldoretailingsalongwithrecycledcoarseaggregates
AT sandikumarreddy durabilitycharacteristicsofgeopolymerconcreteproducedusinggoldoretailingsalongwithrecycledcoarseaggregates