1. Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang′an University, Xi′an， Shaanxi 710064， China； 2. Shaanxi Expressway Mechanical Engineering Co., Ltd, Xi′an, Shaanxi 710038, China； 3. Shandong High Speed Development of Science and Technology Group Co., Ltd, Jinan， Shandong 250000, China
Abstract：To deeply investigate the pavement performance of cold patch asphalt liquid and make up the deficiency of evaluation method, the performance evaluation method of cold patch asphalt liquid was put forward. A new type of solvent cold patch asphalt liquid was developed by orthogonal experiment, and the suggesting technical requirements were proposed. The properties were validated by comparison experiment. The results show that diluent and tackifier are the main affecting factors on the performance of solvent cold patch asphalt liquid. The optimum ratio of base asphalt, diluent, tackifier, surfactant and anti-stripping agent of the new type of solvent cold patch asphalt liquid is 100 ∶25 ∶2 ∶0.5 ∶0.6. The evaluation methods and the suggesting technical requirements of cold patch asphalt liquid can well reflect the pavement performance. According to the suggesting technical requirements, the excellent cold patch asphalt mixture can be prepared by the cold patch asphalt liquid.
2017, Vol. 38 
