摘要
对TPS、路孚8000和Sasob it三种新型沥青添加剂的改性效果进行了系统测试和分析,考虑到常规试验和评价指标在评价改性沥青性能时存在的不足,本文利用沥青稠度测试仪和测力延度仪,并引入能表征沥青结合料高温性能的稠度指标、反映沥青低温性能的测力延度以及评判温度敏感性能的稠度—温度指数等新的评价指标,评价了添加剂对沥青的改性效果。结果表明:新指标能很好的评价改性沥青的高温、低温和温度敏感性能,路孚8000对沥青各项性能改善明显。
This paper tested the effect on modified asphalt of TPS, Lufu8000 and Sasobit.In view of deficiency of familiar tests and indexes,consistency testing system and measuring-stress ductility system are used.Consistency index,measuring-stress ductility index and consistency-temperature index are utilized for appraising high-temperature performance,low-temperature performance and temperature susceptibility,respectively.Results indicated that new indexes can appraise the performances of modified asphalt effectively and Lufu8000 is a preferable additive.
出处
《河南科技大学学报（自然科学版）》
CAS
2006年第5期25-28,共4页
Journal of Henan University of Science And Technology:Natural Science
基金
国家863计划项目(2002AA335100)
关键词
沥青添加剂
改性沥青
高低温性能
温度敏感性
Additive
Modified asphalt
High-temperature and low-temperature performance
Temperature susceptibility
