Research on Viscoelasticity of Modifi ed Bitumen Containing LDHs Anti-UV Aging Agent  

作　　者：刘星 WU Shaopeng 刘刚 MA Shankui 

机构地区：[1]State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2015年第6期1321-1324,共4页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Key Scientific Apparatus Development Program from the Ministry of Science and Technology of China(No.2013YQ160501);the National Basic Research Program of China(No.2014CB932104);the Natural Science Foundation of China(No.51278392);the Science and Technology Plan Projects of the Ministry of Transport of China(No.2013318811250)

摘　　要：We applied LDHs to modify the bitumen by melt blending, and studied the viscoelasticity of LDHs modifi ed bitumen by means of dynamic shear rheometer（DSR）. The creep test was used to evaluate the viscoelastic behavior. The experimental results indicated that, due to the addition of the LDHs, the viscoelastic properties of modifi ed bitumen were superior to those of pristine bitumen. Therefore, the LDHs would be an alternative to modifi ers used in the bitumen to improve the UV-aging resistance during the service of asphalt pavement.We applied LDHs to modify the bitumen by melt blending, and studied the viscoelasticity of LDHs modifi ed bitumen by means of dynamic shear rheometer（DSR）. The creep test was used to evaluate the viscoelastic behavior. The experimental results indicated that, due to the addition of the LDHs, the viscoelastic properties of modifi ed bitumen were superior to those of pristine bitumen. Therefore, the LDHs would be an alternative to modifi ers used in the bitumen to improve the UV-aging resistance during the service of asphalt pavement.

关 键 词：bitumen viscoelasticity UV aging LDHs 

分 类 号：U414[交通运输工程—道路与铁道工程]