Mechanical properties, permeability and microstructure of concrete using construction and industrial waste
International Journal of Structural Integrity
ISSN: 1757-9864
Article publication date: 28 October 2022
Issue publication date: 16 November 2022
Abstract
Purpose
The purpose of this research is to evaluate construction and industrial waste materials in concrete using different additives.
Design/methodology/approach
The experimental study investigated the effect of waste foundry sand (WFS), waste glass (GW) as partial substituent to natural sand and addition of waste glass fibers (GFs) and silica fume (SF) in natural/construction waste aggregate concrete on mechanical properties, durability and microstructure using.
Findings
The results reveal significant strength enhancement on using two admixtures, the maximum increase in compressive strength was obtained on using 20% WFS and 0.75% GF for both natural (75% increment) and construction waste (72% increment) coarse aggregates. Using three admixtures simultaneously, the maximum enhancement in compressive strength was found for (WFS(20%) + GW(10%) + GF(0.75%)) for both natural aggregates (122% increment) and construction waste (114% increment) coarse aggregates as compared to control mix. The 28 days split tensile and flexural strength of natural/construction waste aggregate concrete improve with age appreciably for optimal contents of single, two or three admixtures and the maximum tensile and flexural strength increment was 135 and 97% for mix (WFS(20%) + GW(10%) + GF(0.75%)) with natural aggregates as compared to control mix. The microstructural analysis results indicate improved microstructure upon partial substitution of sand with WFS, GW and SF along with addition of waste GFs.
Originality/value
The use of construction and industrial waste as a substituent to natural aggregate/sand will provide far reaching benefits for the green construction and the environment at large.
Keywords
Citation
Sharma, R. (2022), "Mechanical properties, permeability and microstructure of concrete using construction and industrial waste", International Journal of Structural Integrity, Vol. 13 No. 6, pp. 1013-1040. https://doi.org/10.1108/IJSI-07-2022-0101
Publisher
:Emerald Publishing Limited
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