华东交通大学学报2018，Vol.35Issue(1)：103-108,6.
厂拌热再生沥青混合料的最佳RAP掺量研究
Investigation of Optimum RAP Contents in Hot Recycled Asphalt Mixture
高磊 1林鹏2
作者信息
- 1. 河北广通路桥集团有限公司,河北 邯郸050000
- 2. 同济大学道路与交通工程教育部重点实验室,上海201804
- 折叠
摘要
Abstract
The reclaimed asphalt pavement (RAP) material was classified into two categories and the gradation and asphalt content of RAP were examined for each category. The Marshall design method was adopted to obtain the optimum asphalt content and mixture ratio in the hot recycled asphalt mixture AC-13 and AC-20 under the conditions of 10%, 20%, 30%, 40% and 50% content of RAP respectively. Effects of RAP changes on the high temperature stability,low temperature performance and water stability of reclaimed asphalt mixture with the opti-mum asphalt content were evaluated. Finally, the test road was constructed to verify the road performance of hot recycled asphalt mixture. Research results show that the low temperature performance and water stability of hot recycled asphalt mixture increased first and then decreased along with the increase of content of RAP, and the optimum RAP content was 30%.The high temperature stability of hot recycled asphalt mixture improved with the increase of RAP content. With comprehensive consideration of the properties of hot recycled asphalt mixture, 30% content of RAP was recommended.关键词
沥青回收料/最佳掺量/水稳定性能/低温性能Key words
reclaimed asphalt pavement materials/optimum content/water stability/low temperature performance分类
交通工程引用本文复制引用
高磊,林鹏..厂拌热再生沥青混合料的最佳RAP掺量研究[J].华东交通大学学报,2018,35(1):103-108,6.
