Paper Contents
Abstract
This research investigates the enhancement of concrete performance by partially replacing cement with fly ash and metakaolin, and coarse aggregates with air-cooled blast furnace slag (ACBFS). The study evaluates the compressive and flexural strengths of M30 grade concrete in binary, ternary, and quaternary mixes, aiming to promote sustainability and resource conservation. Experimental results indicate that an optimal mix with 10% fly ash, 15% metakaolin, and 60% ACBFS achieves superior mechanical properties, with a compressive strength of 39.59 MPa and flexural strength of 6.0 MPa at 28 days, alongside a 7.3% cost reduction compared to the reference mix. These findings underscore the potential of supplementary cementitious materials (SCMs) and ACBFS in producing sustainable, high-performance concrete.
Copyright
Copyright © 2025 MD Azhar Uddin. This is an open access article distributed under the Creative Commons Attribution License.
