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Mechanical and Durability Properties of Self Compacting Concrete Containing Treated Recycled Coarse Aggregates and Acetic Acid-Metakaolin Slurry

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Iranian Journal of Science and Technology, Transactions of Civil Engineering Aims and scope Submit manuscript

Abstract

This paper examines the influence of acetic acid-treated recycled aggregates on the physical, mechanical, and durability properties of self-compacting concrete. Meanwhile, the zero waste technique has been implemented through the addition of waste acetic acid solution from the aggregate treatment, and its effects on fresh behavior, mechanical characteristics, permeability, penetration, absorption, migration, and resistivity, as well as carbonation resistance of the concrete, was investigated. To ensure that waste acetic acid solution (Wac) does not interfere with the pozzolanic activity of metakaolin; preliminary tests were conducted, which revealed a favorable influence of Wac on CH consumption. The findings show that metakaolin in slurry form compensates for the loss of workability in self-compacting concrete caused by the substitution of recycled materials. Furthermore, the self-compacting concrete's mechanical strength, durability, and microstructure have all been successfully improved by the creation of strong resistance to chloride penetration and carbonation. From the various aspects of self compacting concrete investigated, this study has verified the feasibility of using Wac as an admixture in SCC, promoting the use of recycled aggregates that can not only minimize construction waste accumulation but also provide economic benefits.

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SR: Conceived and designed the conceptual ideas. MS: Performed the analysis and prepared the manuscript. MAR: Collected and contributed the data for analysis.

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Correspondence to M. Sophia.

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Ruben, J.S., Sophia, M. & Raja, M.A. Mechanical and Durability Properties of Self Compacting Concrete Containing Treated Recycled Coarse Aggregates and Acetic Acid-Metakaolin Slurry. Iran J Sci Technol Trans Civ Eng 46, 2933–2959 (2022). https://doi.org/10.1007/s40996-022-00841-w

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  • DOI: https://doi.org/10.1007/s40996-022-00841-w

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