JOURNAL OF MATERIALS & CONSTRUCTION
ISSN: 2734-9438
Website: www.jomc.vn
Preliminary assessment of the economic efficiency of using recycled fine aggregate in self-compacting concrete with high fly ash content
Abstract
This paper presents a preliminary study on the economic efficiency of using recycled fine aggregate (RFA) from concrete waste, combined with a high fly ash content to produce self-compacting concrete (SCC) in Vietnam. Evaluation results indicate that using 100% RFA can reduce the material cost of SCC production to approximately 905,149 VND/m³, representing a decrease of 10.74% compared to SCC using natural sand and 31.64% compared to conventional concrete of equivalent grade (M400). The integration of RFA with high fly ash content emerges as a feasible solution, reducing construction costs while also contributing to environmental protection and natural resource conservation.
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