Effect of water to cement ratio and replacement percentage of recycled concrete aggregate on the concrete strength

F., S. Khalid and Z., Zaki and S., M. Saadin and S., Shahidan (2020) Effect of water to cement ratio and replacement percentage of recycled concrete aggregate on the concrete strength. International Journal of Advanced Science and Technology, 29 (6s). pp. 1625-1635. ISSN 20054238

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Fine Recycled Concrete Aggregate (FRCA) is one of the construction waste can be recycled. It can be the aggregate to replace the natural aggregate in concrete since we know the physical properties of materials are hard and strong. Demand for sand in the concrete production has been increased which become the problems in the concrete industry. This work deals with the effect of concrete incorporating with FRCA as partial replacement of sand. The percentage of natural sand replaced by the FRCA was 0%, 15%, 20%, 25%, 30%, 45% and 60%. Other than that, water cement ratio was manipulated variable started form 0.40, 0.45, 0.50, 0.55 and 0.60. In short, 20% replacement was the most suitable interaction of FRCA in the concrete occur that contribute to increasing in compressive strength. The porosity properties of FRCA been neutralized on that replacement percentage by the present of optimum filler effect generated form the very fine FRCA particle during the mixing process. Meanwhile, 0.50 water cement ratio was optimum condition for cement hydration process using FRCA as partial sand replacement.

Item Type: Article
Uncontrolled Keywords: Recycled concrete; partial sand replacement; compressive strength
Subjects: T Technology > TH Building construction > TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction
Divisions: Faculty of Civil Engineering and Built Environment > Department of Civil Engineering : Building and Construction Engineering
Depositing User: Mr. Abdul Rahim Mat Radzuan
Date Deposited: 18 Oct 2021 07:14
Last Modified: 18 Oct 2021 07:14
URI: http://eprints.uthm.edu.my/id/eprint/2027

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