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9663181 
Journal Article 
基于等针入度的增塑沥青混合料路用性能对比研究 
Zhang, H; Li, S; Liu, Z 
2019 
Tongji University 
22 
4 
651-655 
Chinese 
In northern China, pavement cracking often occurs due to low temperature. To solve this problem, dioctyl phthalate(DOP) plasticizer was mixed into SBS modified asphalt to improve the low temperature resistance of asphalt. This experiment was carried out under the condition of equal penetration, the optimum dosage of plasticizer was determined and the road performance of asphalts and asphalt mixtures was compared. The results show that the plasticizer greatly increases the asphalt ductility and penetration, decreases the softening point and viscosity. The plasticizer reduces the high temperature stability and improves the low temperature performance of asphalt mixtures. The plasticized SBS modified 90# asphalt mixture is the best in anti-freezing cracking performance. © 2019, Editorial Department of Journal of Building Materials. All right reserved. 
Comparative analysis; Equal penetration; Modified asphalt mixture; Pavement performance; Plasticizer; Mixtures; Pavements; Plasticizers; Reinforced plastics; Temperature; Comparative analysis; Cracking performance; Equal penetration; High temperature stability; Low temperature performance; Low-temperature resistance; Modified asphalts; Pavement performance; Asphalt mixtures