Title:
How Does Coarse Aggregate Type Influence Mechanical Properties of High-Strength Concrete?
Author(s):
Y. El Berdai, Y. Taha, A. M. Safhi, R. Trauchessec, R. Hakkou, and M. Benzaazoua
Publication:
Materials Journal
Volume:
122
Issue:
3
Appears on pages(s):
79-88
Keywords:
coarse aggregate (CA); compressive strength (CS); highstrength concrete (HSC); modulus of elasticity (MOE); prediction model; systematic review
DOI:
10.14359/51746716
Date:
5/1/2025
Abstract:
Research has shown that the type of coarse aggregate (CA) significantly impacts the properties of high-strength concrete (HSC). This paper provides a systematic and comprehensive review of the influence of CA type, strength, and elasticity on compressive strength
(CS) and modulus of elasticity (MOE) of HSC. The CS can increase
by up to 141% and the MOE gains up to 48% with different CA
types, which is explained by the Compressible Packing Model
(CPM) and shows the significant impact of CA on the MOE. The
equation for the prediction of the MOE presented in the “Report
on High-Strength Concrete” by ACI Committee 363 was calibrated
using a CA type coefficient based on the data points collected to
highlight the influence of CA on the MOE of HSC. Future research
could focus on the effect of the adherence and elasticity of CAs.