关键词: 接触角法;沥青-石料粘附性;水损害;材料本征参数

Abstract: It is a hot spot to study the asphalt-stone adhesion to prevent the water damage of asphalt mixture by the contact angle method.In this paper, seven kinds of stone materials and three kinds of asphalt commonly used in road construction are studied by contact angle method in order to obtain the same and stable experimental conditions to study the influence of the intrinsic parameters of materials on the adhesion of asphalt-stone.The results show that the contact angle test is carried out at the temperature of 60 ℃ when the sample is polished by 15.9 mm polishing degree, washed with distilled water-anhydrous ethanol-cyclohexane-distilled water.The obtained asphalt-stone adhesion work corresponds to the result of the material intrinsic parameter affecting the asphalt-stone adhesion.

Key words: contact angle method;asphalt-stone adhesion;water damage;material intrinsic parameter