MICROSCOPIC THERMAL STRESS ANALYSIS OF CEMENT BASED PAVEMENT COMPOSITE

Rubberized asphalt emulsion modified cement concrete (ERACC) is a kind of cement based pavement composite which is made of cement mortar as matrix, and rubberized asphalt emulsion coated coarse aggregates as dispersed phase. According to the features of ERACC pavement structure and the characteristics of ERACC microstructures, a three layer built in model was proposed for microscopic thermal stress analysis of ERACC, and the thermal stress formulas were developed. The way to increase the ability of resisting temperature cracking was discussed.