By comparing and studying the tensile strength,elongation at break,Young's modulus and retention time of different toughening agents on domestic epoxy asphalt,the brand of toughening a-gent suitable for domestic epoxy asphalt was analyzed.The difference of mechanical properties and storage time of epoxy asphalt with different toughening agent content was studied,and the suitable toughening agent content interval was analyzed.The results show that the toughening agent can sig-nificantly improve the brittleness of epoxy asphalt,improve the retention time index and reduce the construction difficulty.When the index of toughening agent is controlled in the range of 5.3％～6.1％,the mechanical index of domestic epoxy asphalt is similar to that of Japanese TAF epoxy asphalt,and its performance basically meets the requirements of pavement.The retention time index has been significantly improved and the construction difficulty of epoxy asphalt pavement has been greatly re-duced.
关键词
增韧剂/环氧沥青/力学性能/容留时间
Key words
toughening agent/epoxy asphalt/mechanical properties/holding time
维普
万方数据