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Effect of Coarse and Fine Recycled Concrete Aggregates on the Performance of Geopolymer Concrete

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

Abstract

This paper examines the performance of geopolymer concrete containing coarse and fine recycled concrete aggregates (RCA) in terms of strength and durability properties. The durability properties were accessed in terms of capillary suction, initial surface absorption and acid attack. The strength was evaluated in terms of compressive strength. Non-destructive tests were also conducted such as ultra-sonic pulse velocity and electrical resistivity on all geopolymer concrete mixes. It has been observed that the geopolymer concrete mix with a combination of 100% coarse and 25% fine RCA shows nearby similar compressive strength compared to the geopolymer concrete made with 100% natural aggregates (NA). However, with further increase in fine RCA content beyond 25% along with 100% coarse RCA an adverse effect on both strength and durability properties was observed. The study has demonstrated that RCA utilization in the production of geopolymer concrete can greatly contribute to a sustainable environment.

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Acknowledgements

Ministry of Education (MoE), Government of India, is admiringly acknowledged for providing financial aid to the first author. The authors also appreciate and thank the staff of the Concrete Testing Laboratory of NIT, Jalandhar, India, which helps in conducting experimentation work stated in the paper.

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P.S. contributed to Written original draft, Methodology, Experimental work, Conceptualization K.K. contributed to Reviewing original draft, Providing resources, Conceptualization

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Correspondence to Kanish Kapoor.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Singh, P., Kapoor, K. Effect of Coarse and Fine Recycled Concrete Aggregates on the Performance of Geopolymer Concrete. Iran J Sci Technol Trans Civ Eng (2024). https://doi.org/10.1007/s40996-024-01370-4

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  • DOI: https://doi.org/10.1007/s40996-024-01370-4

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