江苏大学学报（自然科学版）2018，Vol.39Issue(3)：368-372,5.DOI:10.3969/j.issn.1671-7775.2018.03.020
RAP掺量对热再生沥青混合料水温耐久性能的影响
Effect of reclaimed asphalt pavement content on durability performance of hot recycled asphalt mixture
摘要
Abstract
The durability performance of hot recycled asphalt mixture with different percentages of reclaimed asphalt pavement(RAP)was evaluated by multiple freeze-thaw cycles method. The diametral compression test,the dynamic creep test,the semi-circular bending test and the indirect tensing fatigue test were conducted after 0,1 and 3 freeze-thaw cycles. The test results show that the using tensile strength residual(TSR)to assess moisture damage may be misleading. The moisture durability performance,the rutting resistance durability performance,the low temperature cracking resistance durability performance and the fatigue cracking durability performance are all declined after multiple freeze-thaw cycles. Compared with HMA with virgin materials,the recycled asphalt mixture shows lower durability performance under multiple freeze-thaw cycles. The higher the content of RAP is,the more obviously the performance recessions.关键词
热再生沥青混合料/RAP掺量/耐久性能/多重冻融循环/水损害Key words
hot recycled asphalt mixture/RAP content/durability performance/multiple freeze-thaw cycles/moisture damage分类
交通工程引用本文复制引用
姜严旭,顾兴宇,周洲..RAP掺量对热再生沥青混合料水温耐久性能的影响[J].江苏大学学报（自然科学版）,2018,39(3):368-372,5.基金项目
江苏省自然科学基金资助项目(BK20151413) （BK20151413）
