Study On The Cold Composite Asphalt Concrete

Cationic emulsified asphalt is a road construction, maintenance of the road commonly used materials, is environmentally-friendly and energy saving,the road researchers of domestic and foreign propose mixing the method with cement in the emulsified asphalt concrete, improve this kind of material pavement performance well. Basically, to achieve common asphalt concrete pavement performance indicators. However, such as the uniformity of concrete materials, bond strength and durability, the flatness of the road still exist deficiencies.This article is mainly used to add lime to improve the methods of the original mixture of the cement emulsified asphalt cement inadequacies, enhance the bond strength between the asphalt and aggregate and improve its durability, the formation of a variety of binder materials for the bonding of cold composite asphalt concrete. The first, discussed to the material experimental method of the cold composite asphalt concrete fit to the material performance characteristics, recommended for further amendment mixture Marshall test experimental methods and the order of the material add into mixture, and then made the best materials mix to the cold composite asphalt concrete, as well as demonstration through the experiment adding a certain percentage of the lime on concrete pavement performance impact, and finally made an analysis of the cold composite asphalt concrete to the construction process and method of this pavement material, as well as analysis of economic and technological evaluation.