地聚合物改性沥青混合料性能试验研究  

Experimental study on the properties of ground polymer modified asphalt mixture

作　　者：董庆宇 郭峰[2] DONG Qingyu;GUO Feng(Luojie Expressway Management Office,Luoyang 471000,Henan China;School of Civil Engineering,Luoyang Institute of Technology,Luoyang 471023,Henan China)

机构地区：[1]洛界高速公路管理处,河南洛阳471000 [2]洛阳理工学院土木工程学院,河南洛阳471023

出　　处：《粘接》2022年第9期50-53,共4页Adhesion

摘　　要：为研究地聚合物用量对沥青混合料路用性能的影响,通过一系列室内试验分别研究了不同掺量(3%、5%和7%)地聚合物的改性沥青混合料高低温和水稳定性、抗疲劳性能,并以70#基质沥青与SBS改性沥青作为对照组,试验结果表明,地聚合物可大幅度改善沥青混合料的高温抗车辙能力和抗水损害性能,但受其自身材料特性作用,对于沥青混合料的低温抗裂性和抗疲劳特性具有一定不利影响,在实践应用中须严格控制其用量。In order to study the influence of geopolymer content on the pavement performance of asphalt mixture,the high and low temperature,water stability and fatigue resistance of modified asphalt mixture with different content of geopolymer(3%,5% and 7%) were studied through a series of indoor tests.Taking 70# matrix asphalt and SBS modified asphalt as the control group,the test results show that geopolymer can greatly improve the high temperature rutting resistance and water damage resistance of asphalt mixture,However,due to its own material characteristics,it has a certain adverse impact on the low-temperature crack resistance and fatigue resistance of asphalt mixture.Its dosage must be strictly controlled in practical application.

关 键 词：道路工程 地聚合物 改性沥青 沥青混合料 路用性能 

分 类 号：U414[交通运输工程—道路与铁道工程]