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Title |
Modeling the Modulus of Elasticity of Concrete Considering the Aggregate Crushing Strength
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DOI |
https://doi.org/10.4334/JKCI.2026.38.4.491 |
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Keywords |
탄성계수; 압축강도; 단위용적질량; 골재 파쇄강도 modulus of elasticity; compressive strength; unit weight; crushing strength of aggregates |
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Abstract |
This study examines the crushing strength of aggregates as an additional governing parameter, alongside the compressive strength and unit weight of concrete, and proposes a new rational model for predicting the modulus of elasticity of concrete. A comprehensive database of 11,946 experimental results was compiled from the literature and systematically analyzed. The results demonstrate that the aggregate crushing strength is an independent and significant parameter affecting the modulus of elasticity, with higher elastic moduli obtained for concretes incorporating aggregates with greater crushing strength levels at the same unit weight and compressive strength. Comparisons with existing design equations and empirical models show that the proposed model achieves higher accuracy and lower dispersion over a broad range of concrete types and strength classes.
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