郑州大学学报（工学版）2018，Vol.39Issue(2)：67-72,6.DOI:10.13705/j.issn.1671-6833.2018.02.006
废胎胶粉与HDPE/SBS三掺复合改性沥青性能研究
Properties of Composite Modified Asphalt with HDPE/SBS/Waste Tire Powder Mixed
摘要
Abstract
To study the optimum preparation process of HDPE/SBS/waste tire powder mixed with three kinds of modified asphalt,SK-90 # asphalt was used to select SBS content,powder content,HDPE content and Shear rate,shear time and shear temperature to prepare compound modified asphalt.The results were analyzed by variance analysis method.The influence of each test variable on the performance of composite modified asphalt was obtained,and the optimal preparation scheme was obtained.The results showed that the SBS content had the greatest effect on the softening point and the elastic recovery rate.The content of HDPE had a great effect on the penetration.The SBS and HDPE content had an influence on the ductility.The content of the modifier and the shear temperature the effect of rotational viscosity was essentially the same.The optimum preparation scheme was as follows:the content of HDPE was 1.5％,the content of SBS was 5％,the content of waste tire was 20％,the shear temperature was 165 ℃,the shear rate was 4 500 r/min,the shear time was 45 min.Under the optimal preparation scheme,the high temperature stability and low temperature crack resistance of the modified asphalt were greatly improved,and the viscosity of the modified asphalt was increased and the adhesion to the aggregate was enhanced,which improved the anti-rutting ability and the ability of resisting the water resistance.The elastic recovery rate could ensure the crack resistance of modified asphalt.关键词
复合改性沥青/正交试验/方差分析/SBS/废胎胶粉/HDPEKey words
composite modified asphalt/orthogonal test/variance analysis/SBS/waste tire powder/HDPE分类
交通工程引用本文复制引用
何锐,黄鑫,耿九光,陈华鑫..废胎胶粉与HDPE/SBS三掺复合改性沥青性能研究[J].郑州大学学报（工学版）,2018,39(2):67-72,6.基金项目
中央高校基本科研业务费专项资金资助(310831162001、310831161001) （310831162001、310831161001）
广西科技计划项目(桂科AC16380112) （桂科AC16380112）
