文献类型：期刊文献

中文题名：煤基再生材料对老化沥青流变性能的影响

英文题名：Effect of Coal Based Recycled Material on Rheology of Aged Asphalt

作者：王箐[1];査如俊[1];张晓露[1];邓琳[1];凌昊[1]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海200237

年份：2015

卷号：41

期号：5

起止页码：617

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：中央高校基本科研业务费专项资金(WA1315018);大学生创新项目(201410251005)

语种：中文

中文关键词：道路养护;煤沥青;再生沥青;流变性

外文关键词：road maintenance; coal tar pitch; recycled asphalt; rheology

摘要：以煤沥青和洗油为主要原料调制了一种新型沥青再生材料,并研究其对老化沥青的再生效果。实验结果表明,加入质量分数8%的再生材料可有效恢复老化沥青的针入度、软化点和族组成,延度可恢复至45.8cm;考察了不同再生材料添加量对沥青流变性能的影响,结果表明加入w=8%的再生材料可使老化沥青的黏弹性恢复50%,黏流性基本未变;通过与石油基再生材料进行对比,发现石油基再生材料对老化沥青的抗断裂能力恢复效果更好,而煤基再生材料在再生时不损失沥青的抗变形能力。
Coal tar pitch and wash oil were used as the main raw materials of a new asphalt recycled material. The regeneration experiment showed that penetration, softening point and component content of the aged asphalt could be recovered completely by adding w= 8% recycled material, while the ductility could be increased to 45.8 cm. The effect of adding the recycled material on rheology of the aging asphalt was also studied. Results showed that viscoelasticity of the regenerated asphalt could be recovered by 50%, and flow property was rarely changed. Compared with a petroleum based recycled material, the coal based recycled material had less effect on recovering anti fracture ability of the aged asphalt, but could maintain the anti-deformation ability.