Understanding the relationship between the segregation of concrete and coarse aggregate density and size

Abstract

Segregation of aggregate, which ultimately influences the strength and durability of concrete, is one ofthe major problems during construction. Two factors and their effects on the segregation of fresh concreteunder vibration were studied. Based on the statistical analysis of the experimental results, it wasconcluded that the observed rate of segregation is an intrinsic property of concrete and is independentof the vibration time applied. The segregation tendency of a concrete mixture is mainly explained bythe interaction between the specific surface of coarse aggregate and the difference in density betweenthe aggregate and mortar phase rather than by each individual factor independently.