Age-dependent trends in compressive strength of concrete incorporating fly ash

2023

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DOI 10.54355/tbus/3.4.2023.0046
Data confidence 70 medium
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Abstract

The research investigates the transformative potential of fly ash, an industrial byproduct, in enhancing concrete compressive strength and addressing environmental concerns associated with its disposal. The study employs a rich dataset from Mendeley Data, comprising 471 data points, to comprehensively explore the impact of fly ash on concrete strength at different ages. The analysis involves determining optimal compositions with fly ash, evaluating the fraction of cement replacement, and analyzing the generalized effect on compressive strength through graphical representation. Results reveal an inverse relationship between fly ash content and compressive strength, with nuanced patterns emerging at different curing ages. Despite the negative correlation, opportunities exist to optimize concrete formulations for specific strength requirements by judiciously incorporating fly ash. The weighted sum analysis identifies a composition with 33.6% replacement of binder by fly ash as optimal in the long term, showcasing the potential of this waste product as a valuable resource in sustainable concrete engineering.