华东交通大学学报Issue(1)：30-36,7.
复合改性高黏沥青在排水路面的应用研究
Research on Application of Composite Modified High Viscosity Asphalt in Drainage Pavement
叶奋 1杨思远2
作者信息
- 1. 同济大学道路与交通工程教育部重点实验室，上海 201804
- 2. 新疆大学建筑工程学院，新疆 乌鲁木齐 830047
- 折叠
摘要
Abstract
To solve the existing problem of low standard of drainage asphalt pavement and lack of uniform crite-ria for the production and evaluation of high viscosity asphalt, the SBS/CRM composite modified method was adopted to obtain high viscosity asphalt and the reasonable dosage of CRM was determined according to the 175 ℃ rotational viscosity and the softening point and elastic recovery rate. Results of road performance tests such as Hamburg rutting test and Cantabro loss test on the OGFC-13 mixture were analyzed to give recommen-dations on existing technical standards. The results show that the optimum content of CRM is 20% mixed with 3.5% SBS concerning the viscosity and high temperature capacity, and the dynamic stability of the OGFC mix-ture is higher than 6 000 times/mm. The 175 ℃ viscosity, softening point and elastic recovery rate were recom-mended to ensure the quality of composite modified high viscosity asphalt, whose viscosity should be controlled at 2~5 Pa·s with the softening point higher than 80 ℃ and the recovery rate more than 75%. The dynamic sta-bility of OGFC mixture no less than 5 000 times/mm is also suggested.关键词
排水沥青路面/复合改性/高黏沥青/评价指标Key words
drainage asphalt pavement/composite modification/high viscosity asphalt/evaluation index分类
交通工程引用本文复制引用
叶奋,杨思远..复合改性高黏沥青在排水路面的应用研究[J].华东交通大学学报,2016,(1):30-36,7.
