The category and development of emulsified asphalt was introduced, the main products of quaternary ammonium cationic emulsifiers for asphalt in our country and their synthesis methods were summarized.

• 介绍了乳化沥青的分类及发展现状,就目前我国主要的季铵盐型沥青乳化剂的品种对其合成方法进行了总结。