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Effect of copper slag, iron slag and recycled concrete aggregate on the mechanical properties of concrete

J. Vijayaraghavan, A. Belin Jude and J. Thivya

Resources Policy, 2017, vol. 53, issue C, 219-225

Abstract: Resource concern operations were evident all around the world in each and every sector including civil constructions, where more resources get exploited recently with the development of globalized infrastructures. With these developments bring out new challenges on mainly construction materials. Hence, many studies ultimately reporting various waste management strategies which involves both eco efficient parameters. In the row, recent studies have been paid their focus on the construction materials which includes fine and course aggregates. Generally, the existing studies focused on alternatives for these construction aggregates, but still there is enough room to explore further. Hence, this study considers as an opportunity to investigate the effect of using alternatives for both fine and course aggregates with copper slag (30%, 40% and 50%), iron slag (30%, 40% and 50%)and recycled concrete aggregate (20%, 25% and 30%) with various proportions of mix by the partial replacement of sand and gravel respectively. The mechanical properties were concluded and compared among conventional concrete with proposed mix under the timeline of 28 curing days. Results sought to indicate the appropriate proportion of mix which providing higher mechanical strength. This study was conducted on two phases namely experimental and numerical analysis. Initially, experimental study were made on the above considered proportions and further the obtain data were manipulated with numerical modeling for reliability. From the study, it has been concluded that 40% of copper slag, 40% iron slag and 25% of recycled concrete aggregate possess more strength than conventional concrete mix. However, further research work opportunities were suggested in the conclusion of the study to shed more light on effective sustainability on construction materials.

Keywords: Copper slag; Iron slag; Recycled concrete aggregate; TOPSIS (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:eee:jrpoli:v:53:y:2017:i:c:p:219-225

DOI: 10.1016/j.resourpol.2017.06.012

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