沥青改性剂的应用研究进展

A Review for Application of Asphalt Modifiers

概述了国内外改性剂在道路铺筑和维修养护领域的应用概况，着重论述了橡胶类、树脂类和热塑性橡胶类改性剂的应用情况，特别是常用改性剂苯乙烯-丁二烯一苯乙烯嵌段共聚物（SBS）、丁苯橡胶（sBR）和乙烯醋酸乙烯酯（EVA）的使用性能。多项研究表明，使用单体对改性剂进行接枝改性或者两种及其以上的改性剂进行复合，在使用时能达到更好的改性效果。并根据我国的发展现状，指出了沥青改性剂高性能化、多样化以及对沥青化学改性是主要的发展方向。

This paper is a review of research that has been carried out on the asphalt modifiers for road paving and maintenance applications The application status of elastomers, thermoplastic polymers and thermoplastic elastomers, notably the specific polymers that are used widely including styrene-butadiene-styrene （SBS）, styrene-butadiene rubber （SBR） and ethylene vi elaborated. Many studies have shown that, if one modifier is grafted with a monomer or blended with nyl the acetate （EVA）, are other modifier, an improved performance can be achieved when it is used for modifying the asphalt. From an application point of view, various modifiers with higher performance and used for chemical modification upon asphalt would be developed in China.