排水性面层高粘度改性沥青的选择  

High viscosity modified asphalt option of Drainage layer

作　　者：王慧[1] 刘黎萍[1] 朱琨琨 魏冰 

机构地区：[1]同济大学道路与交通工程重点实验室,上海201804 [2]林同棪国际工程咨询(中国)有限公司,重庆401121 [3]浙江省交通工程建设集团,浙江杭州310051

出　　处：《公路工程》2010年第5期124-127,共4页Highway Engineering

摘　　要：通过对高粘度沥青性质评价对比、混合料性能评价等方面进行研究。该研究从沥青的基本性质入手,以混合料的路用性能为出发点,结合规范要求以及国外一些研究成果,采用了TPS改性沥青、RST改性沥青、以及同济老师自己配制的改性沥青进行针对性研究。通过软化点、粘度等试验比较沥青的优劣,通过车辙试验、飞散试验、冻融劈裂试验等试验方法,研究了OGFC混合料在不同沥青胶结料条件下的性能对比。最终选出一种适合于高孔隙的排水性面层的高粘沥青。Through the study of the evaluation and compare of these high-viscosity asphalts,graded mixture design,performance evaluation.This study makes the basic property of these kinds of asphalt and the applicability of mixture as the starting point of this thesis,combined with regulatory requirements,as well as some foreign research results,We choose the TPS modified asphalt,RST modified asphalt,as well as laboratory preparation of teachers of Tongji university for the modified asphalt study.Through liquefying point test,viscosity test etc.to judge and compare,through the Rutting test,fragmentation test,Water Susceptibility Tensile Strength Ratio（TSR） Test and so on,OGFC mixture performances have been studied under specific condition of using different bituminous cement.Contrast the data and judge them,in order to optimize OGFC mixture,adding different fiber or lime hydrate to mixture is good at increase the durability.Finally choose a asphalt which is fit for drainage layer with macro voids.

关 键 词：高粘度改性沥青 OGFC 空隙率 混合料组成设计 路用性能 

分 类 号：U414.1[交通运输工程—道路与铁道工程]