期刊论文

Study of Curing Reaction Mechanism and Construction Control Performance of Epoxy Asphalt

中文

建筑材料学报

1007-9629

2020

23

4

941-947

10.3969/j.issn.1007-9629.2020.04.029

国家科技支撑计划项目（2011BAG07B03）； 佛山市科技创新项目（2018AB003841）；

本校为第一机构

采用扫描电子显微镜和荧光显微镜观察环氧沥青(N-EA)的微观形貌,探索分析N-EA的固化反应特性及热塑性-热固性转变机理,研究最佳混合树脂(环氧树脂与固化剂的混合物)掺量N-EA混合料的容留温度、容留时间和强度发展规律等施工控制性能.结果表明:37％混合树脂掺量为N-EA热塑性-热固性转变临界点;38％混合树脂掺量N-EA形成交联网络结构,环氧树脂为连续相,表现为热固性;50％混合树脂掺量N-EA形成均匀、密实的三维交联网络结构,沥青在环氧树脂中起增韧作用;N-EA混合料的容留温度和容留时间控制范围较宽,在165～185℃容留温度下最长容留时间可达3.0h;N-EA混合料具有较高的弯拉模量和变形性能,175℃容留...

Scanning electron microscopy and fluorescence microscopy were applied to observe the micromorphology of new epoxy asphalt N-EA with a view to analyze the curing reaction and transition mechanism between thermoplasticity and thermoset of N-EA. Through this method, the construction control performance of N-EA epoxy asphalt was investigated under the best mixed resin dosage condition, such as mixing holding temperature, construction control time, strength development, etc. The results showed that 37% mixed resin is the inversion amount of N-EA cha...