Analytical solution for Young's modulus of concrete with aggregaten aspect ratio effect

摘要

This paper presents an analytical solution for Young's modulus of concrete with the aggregate aspect ratio effect. By taking the interfacial transition zone (ITZ)-coated aggregate as an 'equivalent aggregate', the three-phase concrete is reduced to a two-phase composite material. The interaction direct derivative estimate is then adopted to derive an analytical solution for Young's modulus of concrete. After the validity of the analytical solution is verified with three sets of experimental resu