Anti-shearing performance of asphalt treated base mixtures

There are many mixture design methods for bituminous stabilized broken-stone base mixture at home and abroad such as Marshall test method,Superpave method,Volume method,Beilay method,Mechanics index method,etc for asphalt treated base in the world today.

Based on the laboratory tests, this paper exercises tests of Marshall stability, modulus and indirect tensile strength in different saturation condition, and analyses the effect of saturation condition and asphalt content on the water stability of drainage mixture of bituminous stabilized macadam.

Research on the relationship between permanent deformation and air void structure of asphalt macadam mixture;

According to the strength character of asphalt macadam mixture,dynamic load press-in test having confining pressure was adopted to analyze permanence deformation of HMA in high temperature.

Base on function analysis of asphalt macadam base,the design principles and indexes of asphalt macadam mixture are determined,then the type of coarse framework,distribution of fine aggregate and the optimum filling coefficient are determined according to new character of material design method including the optimum vibrating tec.

Based on the early strength and water resistance of mixtures stabilized with bitumen emulsion,this paper introduced the abroad laboratory strength and other index of the mixtures stabilized by the ordinary Portland cement and another additives which indicates the ordinary Portland cement can significantly improve the early strength and water resistance.