湖南大学学报（自然科学版）2017，Vol.44Issue(7)：156-161,6.DOI:10.16339/j.cnki.hdxbzkb.2017.07.020
欧洲岩沥青改性沥青混合料使用性能试验研究
Experimental Study on Performance of European Rock AsphaltModified Asphalt Mixture
摘要
Abstract
In order to investigate the performance of European rock asphalt modified asphalt mixture,modified asphalt binder containing up to 20% of European rock asphalt was prepared.Design of AC-20C modified asphalt mixture with different percentages of rock asphalt was conducted.Performance tests were carried out on the specimens with optimum asphalt contents of respective percentages of rock asphalt.Based on the test results,the properties such as dynamic stability,Marshall stability,flow value,Marshall quotient,retained Marshall stability,indirect tensile strength ratio,flexural tensile strain,compression moduli at 15 ℃ and 20 ℃,and indirect tensile strength at 15 ℃ were analyzed.The analyses indicate that with the increasing percentage of rock asphalt,the high temperature stability and the moisture susceptibility of the modified asphalt mixture wer improved,and the stiffness and strength of the modified asphalt mixture increased.With the increasing percentage of rock asphalt,the low-temperature cracking resistance of the modified asphalt mixture increased to the peak value,and then fell down slightly.Considering the overall performance,the recommended optimum use of European rock asphalt in the modified asphalt binder ranged from 10% to 20%.关键词
欧洲岩沥青/改性沥青混合料/使用性能/试验研究Key words
European rock asphalt/modified asphalt mixture/performance/experimental study分类
交通工程引用本文复制引用
曾梦澜,朱艳贵,田伟,谢学成..欧洲岩沥青改性沥青混合料使用性能试验研究[J].湖南大学学报（自然科学版）,2017,44(7):156-161,6.基金项目
湖南省交通运输厅科技进步与创新计划项目(201110),2011 Advance and Innovation Project in Science and Technology,Hunan Department of Transportation(201110) （201110）
