Preparation of modified asphalt crack paste and its performance impact factors.

The treatment methods of asphalt pavement diseases, and the preparation and testing methods of modified asphalt crack paste specimens are introduced. The impact of plasticiser, modifier, tackifier and padding on softening point, low temperature flexibility, peel strength, shear strength and continuous cohesiveness of asphalt/crack paste are discussed respectively, and the results showed that, the addition of plasticizer could improve the performance of asphalt/crack paste. Then a suitable material ratio was obtained in combination of environmental protection and the cost, and the performance of the crack paste prepared according to this ratio were tested. [ABSTRACT FROM AUTHOR]