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不同离析程度下改性水性环氧树脂的封水效果评价
作者：余永飞1，陈浙江2，张征3，王栋1
（1.金华市公路管理局，浙江 金华 321013；2.金华市交通投资集团有限公司，浙江 金华 321000；
3.武义县公路管理段，浙江 武义 321200）
摘要：采用AC-20沥青混合料试件，分别研究了不同离析情况下改性水性环氧树脂的处治效果。结果表明：随着离析程度的增大，处治材料用量增加；处治后试件渗水系数显著降低，且随着水性环氧树脂用量的增加，试件的渗水系数逐渐降低，涂刷次数的增加可有效减少处治材料中水性环氧树脂的含量；由于处治材料处治的只是试件的表面层，起到“封水”效果，内部填充较少，因此总体空隙率降低幅度不大。
关键词：离析；处治材料；水性环氧树脂；封水效果
中图分类号：TU535；TQ331.4 文献标识码：A 文章编号：1001-702X（2019）12-0095-04
The sealing water effect evaluation upon different degree of segregation for modified water-based epoxy resin emulsion
YU Yongfei1，CHEN Zhejiang2，ZHANG Zheng3，WANG Dong1
（1.Jinhua City Highway Administration Bureau，Jinhua 321013，China；
2.Jinhua Communications Investment Group Co. Ltd.，Jinhua 321000，China；
3.Wuyi County Highway Administration Bureau，Wuyi 321200，China）
2.Jinhua Communications Investment Group Co. Ltd.，Jinhua 321000，China；
3.Wuyi County Highway Administration Bureau，Wuyi 321200，China）
Abstract：The treatment result of water-based epoxy resin emulsion upon different segregation conditions was studied by using AC-20 asphalt specimens. The study shows that the treatment materials are increasing with increase of segregation degree. The water permeability coefficient decrease significantly after treating，and it decreases when the water-based epoxy resin emulsion content increase. Also the times of brush can decrease the water-based epoxy resin emulsion content effectively. Because the treatment materials just treat the surface of specimen，play a sealing water effect and fill little inside，the overall void ratio is not significantly reduced.
Key words：segregation，treatment materials，water-based epoxy resin，sealing water effect