EXPERIMENTAL-STUDY OF CEMENT-ASPHALT EMULSION COMPOSITE

An experimental investigation was conducted on a three-phase cement-as phalt emulsion composite (CAEC), in which asphalt was introduced as a cushion layer in between coarse aggregates and cement mortar matrix by dispersing asphalt emulsion-coated coarse aggregates into cement mort ar matrix. Laboratory tests on fatigue, strength, rigidity, temperatur e susceptibility, and stress-strain relationship were implemented to e valuate the mechanical properties of the CAEC. The preliminary test re sults showed that CAEC possessed most of the characteristics of both c ement and asphalt, namely the longer fatigue life and lower temperatur e susceptibility of cement concrete, and higher toughness and flexibil ity of asphalt concrete. This experimental study suggested that CAEC m ight be an alternative way of a base course material in pavement. (C) 1998 Elsevier Science Ltd.