Effect of Toughening Agent on Properties of Epoxy Asphalt
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.
toughening agentepoxy asphaltmechanical propertiesholding time