Fresh and mechanical properties of concrete containing recycled fine aggregate as partial sand replacement

Nur Farah Aziera, Jamaludin and Lau, Loong Jie and Khairunisa, Muthusamy and Hanis Nadiah, Ruslan and Nabilla, Mohamad (2023) Fresh and mechanical properties of concrete containing recycled fine aggregate as partial sand replacement. In: Materials Today: Proceedings. Materials Today: Proceedings; Engineering Technology International Conference 2022 (ETIC 2022) , 7 - 8 September 2022 , Virtual, Online. pp. 1-6.. ISSN 2214-7853 (In Press / Online First)

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Abstract

Concrete is one of the world's oldest established construction materials, having been employed in the creation of various structures throughout history. Due to increased demand, the materials used in concrete buildings, particularly granite aggregates and natural sand, are rapidly decreasing. Continuous use of these natural resources has a detrimental effect on the ecosystem. Simultaneously, concrete waste from construction and demolition waste (CDW) created landfills and environmental damage. Therefore, recycled fine aggregate (RFA) was utilized in this research to replace natural sand. This experiment used a total of five mixtures. Mixes with RFA replacement amounts of 0%, 10%, 20%, 30%, and 40% were cast and subjected to water curing. The slump test, compressive test, and water absorption test were done for concrete containing various percentages of RFA. Incorporation of RFA up to 20% enhances the concrete strength. Generally, concrete produced using RFA up to 40% exhibits water absorption not exceeding 10% enabling it to be categorized as good quality concrete. The approach of channeling concrete waste to be utilized as recycled fine aggregate would decrease waste dumping at landfill and mining of sand from local rivers.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Concrete waste; Recycled aggregate; Partial sand replacement; Sustainable concrete; Compressive strength
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TH Building construction
Faculty/Division:	Institute of Postgraduate Studies Faculty of Civil Engineering Technology
Depositing User:	Mrs Norsaini Abdul Samat
Date Deposited:	13 Jun 2024 08:01
Last Modified:	14 Jun 2024 07:48
URI:	http://umpir.ump.edu.my/id/eprint/41572
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