修补坑槽用冷补沥青混合料路用性能研究  

Road Performance of Cold Patching Asphalt Mixture for Repairing Potholes

作　　者：孔令绅 李雪萍 冯志强[3] KONG Lingshen;LI Xueping;FENG Zhiqiang(Henan Zhongzhou Road and Bridge Construction Co.Ltd.,Zhoukou 466000,Henan China;Henan Chemical Industry Research Institute Co.Ltd.,Zhengzhou 450052,China;Henan College of Transportation,Zhengzhou 450046,China)

机构地区：[1]河南中州路桥建设有限公司,河南周口466000 [2]河南省化工研究所有限责任公司,郑州450052 [3]河南交通职业技术学院,郑州450046

出　　处：《河南科学》2021年第3期460-465,共6页Henan Science

基　　金：国家自然科学基金项目(51708513);河南省重点科技攻关计划项目资助课题(152102210033)。

摘　　要：为了研究冷补沥青混合料修补坑槽后沥青路面路用性能,选用LB-16、LB-13(粗型)、LB-13(细型)三种冷补沥青混合料展开研究.通过对三种冷补料进行高温抗车辙、低温抗开裂及抗水损害等性能研究得出,LB-13(粗型)混合料高温稳定性及抗水损害能力最优,LB-13(细型)混合料低温抗开裂性能最优.通过改变温度、湿度、黏结剂种类、黏结剂撒布量及界面刻槽间隔来研究冷补料与AC-13C混合料之间黏结性能得出,相同温度、相同浸水时间及相同刻槽间隔时,LB-13(细型)冷补料抗剪强度最大,LB-16冷补料抗剪强度最小;黏结剂为PC-3型乳化沥青及撒布量为0.3 kg/m^(2)时,三种冷补料与AC-13C混合料之间的抗剪强度均最大.In order to study the pavement performance of cold patching asphalt mixture after repairing pit and groove,this paper selects LB-16,LB-13(coarse type)and LB-13(fine type)cold patching asphalt mixture to carry out research.The results show that LB-13(coarse type)mixture has the best high-temperature stability and water damage resistance,and LB-13(fine type)mixture has the best low-temperature cracking resistance.By changing the temperature,humidity,binder type,binder spreading amount and interface groove interval,the bond performance between cold patch and AC-13C mixture is studied.The results show that the shear strength of LB-13(fine type)cold patch is the largest and the shear strength of LB-16 cold patch is the smallest at the same temperature,soaking time and groove interval;when the binder is PC-3 emulsified asphalt and the spreading amount is 0.3 kg/m^(2),the shear strength between the three kinds of cold patch and AC-13C mixture is the largest.

关 键 词：坑槽 矿料级配 冷补沥青混合料 路用性能 力学性能 

分 类 号：U416.217[交通运输工程—道路与铁道工程]