摘要
选用双酚A型环氧树脂E44和一种多胺类固化剂对基质沥青进行改性:以硅藻土为载体,负载环氧树脂E44后与沥青、固化剂混合,制备出硅藻土负载环氧改性沥青。对比了硅藻土负载环氧改性沥青和日本TAF环氧改性沥青的流变性能、低温性能、微观结构及经济成本,结果表明硅藻土负载环氧改性沥青具有优异的相容性和高温性能,低温抗裂性能相对较差但完全能满足规范要求,其经济性要远优于TAF环氧沥青。
Bisphenol A epoxy resin E44 and a polyamine curing agent were used to modify the base asphalt.Diatomite was used as a supporter of epoxy resin,diatomite-supported-epoxy resin modifier was added into asphalt and mixed with curing agent to prepare the diatomite-supported-epoxy modified asphalt.The rheological behavior,low-temperature performance,microstructure and economic cost of the diatomite-supported epoxy modified asphalt were analyzed and compared with those of Japanese TAF epoxy modified asphalt.The results show that the diatomite-supported epoxy modified asphalt has excellent compatibility and high-temperature performance.The low-temperature crack resistance performance is relatively poor,but it fully meets the standard specifications requirements of China.Moreover,the economy is much better than TAF epoxy modified asphalt.
作者
黄维蓉
任海生
杨东来
HUANG Weirong;REN Haisheng;YANG Donglai(College of Materials Science and Engineering,Chongqing Jiaotong University,Chongqing 400074,China;School of civil engineering,Chongqing Jiaotong University,Chongqing 400074,China;Guangdong Province Changda Highway Engineering Ltd,Guangzhou 511431,China)
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2021年第1期117-123,共7页
Journal of Materials Science and Engineering
基金
广东省交通运输厅科技资助项目(2011-02-019)。
