具有一定服役年限的泡沫温拌沥青混凝土路面路用性能试验研究  

Evaluation of Road Performance of Foamed Warm Asphalt Mixture Based on Field Core Samples

作　　者：李包 李宁 陈晨 于新[1] LI Bao;LI Ning;CHEN Chen;YU Xin(College of Civil Engineering and Transportation, Hohai University, Nanjing, Jiangsu 210098,China;Jiangsu Expressway Engineering Maintenance Technology Co., Ltd.,Nanjing, Jiangsu 211106,China)

机构地区：[1]河海大学土木与交通学院,江苏南京210098 [2]江苏高速公路工程养护技术有限公司,江苏南京211106

出　　处：《公路工程》2022年第2期127-132,187,共7页Highway Engineering

基　　金：江苏省自然科学基金青年基金项目(BK20170886);中央高校基本科研业务费项目(B210202050)。

摘　　要：为研究泡沫温拌沥青混合料高温稳定性、抗裂性能和水稳定性能等随服役年限的变化情况,以现场路面为研究对象,选取了不同服役年限的泡沫温拌沥青路面,利用芯样进行汉堡车辙试验(Hamburg wheel-track device,HWTD)、半圆弯曲试验(Semi Circular Bending Test,SCB)和冻融劈裂试验,评价泡沫温拌沥青混合料与同期热拌沥青混合料路用性能之间的差异。结果表明:与普通热拌沥青混合料相比,泡沫温拌沥青混合料具有较好的抵抗车辙变形和水损害的能力,早期泡沫温拌沥青混合料具有优越的中低温抗裂性能,后期泡沫温拌沥青混合料呈现出略差的中低温抗裂性能。For the study of foam warm mix asphalt mixture under high temperature stability,crack resistance and water stability,etc.With the change of service life,to live the road as the research object,selecting the different warm mix asphalt pavement service life of bubbles,the use of core samples for Hamburg rutting test(HWTD),semicircular bending test(SCB)and freeze-thaw splitting test,evaluation of warm mix asphalt mixture foam road compared with hot mix asphalt mixture is the difference between.The results show that compared with the ordinary hot mix asphalt mixture,the foamed warm mix asphalt mixture has better resistance to rutting deformation and water damage,the foamed warm mix asphalt mixture in the early stage has excellent anti-cracking performance at medium and low temperatures,and the foamed warm mix asphalt mixture in the late stage has slightly worse anti-cracking performance at medium and low temperatures.

关 键 词：泡沫温拌沥青混合料 现场芯样 HWTD SCB试验 冻融劈裂试验 

分 类 号：U416.2[交通运输工程—道路与铁道工程]