硅酸盐通报2018，Vol.37Issue(1)：47-51,5.
重度聚合物改性沥青蠕变恢复测试参数及评价准则
Creep and Recovery Test Parameters and Evaluation Criteria of Highly Polymer Modified Asphalt
摘要
Abstract
In order to compare the difference between the conventional SBS modified asphalt and the creep recovery behavior of SBS modified asphalt,the multi-stress creep recovery test was used as the evaluation method of two kinds of modified asphalt to study the change of multi-stress creep recovery test parameter On the creep recovery behavior of high temperature.The rotary flask method was used instead of the conventional rotary film oven test(RTFO)to make the aging of the heavily modified asphalt aged more highly uniform.The results show that the unrecoverable creep compliance underestimates the strain response when using the MSCR test to assess the severe modified asphalt compared to the conventional SBS modified asphalt, resulting in overestimation of the traffic that can be applied for heavily modified asphalt level.In addition, the permanent strain of heavily modified asphalt has a strong loading time dependence, and the shorter loading time is more beneficial to reduce the effect of repeated creep recovery on the test results.It is recommended to use the loading of 0.1 s,the unloading combination of 0.9 s,and the Jnr value obtained by the 10th creep recovery cycle at 3.2 kPa as the final evaluation parameter..关键词
道路工程/重度改性沥青/评价/高温Key words
road engineering/highly modified asphalt/evaluation/high temperature分类
交通工程引用本文复制引用
王文奇,丁海波,谢远新,王泽,罗忠贤..重度聚合物改性沥青蠕变恢复测试参数及评价准则[J].硅酸盐通报,2018,37(1):47-51,5.基金项目
国家自然科学基金(51308476) （51308476）
四川省教育厅科研项目(16ZB0164) （16ZB0164）
绿色建筑与节能四川省重点实验室开放课题(szjj2015-074) （szjj2015-074）
道路工程四川省重点实验室开放研究基金(15206569) （15206569）
中央高校基本科研业务费专项资金(2682015CX083) （2682015CX083）
