受品种繁杂的影响,目前对水性环氧乳化沥青的研究尚不够深入,应用也不多。以针入度和延度为指标,以室内试验为基础,系统地研究了水性环氧乳化沥青固化条件以及水性环氧树脂和固化剂掺量对乳化沥青性能的影响,以此确定水性环氧乳化沥青的固化条件和最佳配方。结果表明:在120℃的温度条件下,水性环氧乳化沥青的固化时间为6h;水性环氧乳化沥青的最佳配方为乳化沥青85%、水性环氧树脂11.1%～11.5%、固化剂3.5%～3.9%,在此条件下,水性环氧乳化沥青蒸发残留物的针入度(25℃)为88.0(0.1mm)、延度(5℃)为96mm、软化点为49.8℃。

Current researches on waterborne epoxy emulsified asphalt are not deep enough and its application is also few due to the complexity of type.Laboratory tests were therefore conducted to systematically investigate the effects of curing conditions of waterborne epoxy emulsified asphalt,dosage of waterborne epoxy resin and curing agent on the performance of emulsified asphalt by taking the penetration and ductility as the index.Meanwhile,the curing conditions and optimum formulation of waterborne epoxy emulsified asphalt were determined based on the analyses of the above laboratory tests.The results shown that the curing time of the asphalt was 6 h at 120℃.The optimum formulation of the asphalt was as follows:the dosage of the asphalt,waterborne epoxy resin and curing agent were 85%,11.1%～11.5% and 3.5%～3.9%,respectively.The penetration at 25℃,ductility at 5℃ and softening point for the evaporative residues of the asphalt with the optimum formulation were 88.0(0.1mm),96mm and 49.8℃,respectively.