Effects of Sasobit on High Viscosity Asphalt and Asphalt Mixture Performance
Journal Title: 河南科技大学学报(自然科学版) - Year 2016, Vol 37, Issue 2
Abstract
To study the effects of Sasobit on high viscosity asphalt and its mixture performance,the effects of Sasobit on high viscosity asphalt performance under different dosage were researched. The optimum dosage of Sasobit was obtained based on the experimental method. The pavement performance of Sasobit warm-mixture open graded friction course-13( OGFC-13) was compared with the pavement performance of hot-mixture OGFC-13 under optimal dosage Sasobit. The results show that the Sasobit improves the asphalt softening point and asphalt viscosity at high temperature,but reduces the low temperature viscosity,penetration and ductility.The sasobit optimum dosage is 2. 5%,which greatly improves high temperature stability and rutting resistance of high viscous asphalt. Compared with the hot-mixture OGFC-13,the warm-mixture OGFC-13 low temperature cracking resistance and the water stability are decreased slightly,but the high temperature stability is increased by approximately 7%.
Authors and Affiliations
Yingchuan CHEN, Jian WANG, Guorong CHEN, Yuan ZHUANG
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