层布式废旧轮胎钢丝沥青混合料抗裂性能研究  

Research on the crack resistance oflayered waste tire steel wire asphalt mixture

作　　者：王壹帆 王海有 王晓丰 王健 李会涛 WANG Yi-fan;WANG Hai-you;WANG Xiao-feng;WANG Jian;LI Hui-tao(Henan Hengtong Engineering Supervision Consulting Co.,Ltd.,Pingdingshan 467000,China;Pingdingshan Highway Development Center,Pingdingshan 467000,China;Zhengzhou Dadao Highway Engineering Co.,Ltd.,Zhengzhou 450000,China;Henan Zhongya Jiaojian Group Co.,Ltd.,Pingdingshan 467000,China;Henan Province Second Building Engineering Development Co.,Ltd.,Xinxiang 453000,China)

机构地区：[1]河南恒通工程监理咨询有限公司,河南平顶山467000 [2]平顶山市公路事业发展中心,河南平顶山467000 [3]郑州市大道公路工程有限公司,河南郑州450000 [4]河南中亚交建集团有限公司,河南平顶山467000 [5]河南省第二建筑工程发展有限公司,河南新乡453000

出　　处：《河南城建学院学报》2025年第2期52-56,共5页Journal of Henan University of Urban Construction

基　　金：河南省住房城乡建设科技计划项目(K-2320)。

摘　　要：为提升沥青混合料的抗裂性能,推广混合长度层布式废旧轮胎钢丝在沥青混合料中的应用,通过建立废旧轮胎钢丝抗裂模型,推导其抗裂有效长度的理论公式。结合沥青路面的受力特性及裂缝分布情况,验证层布式废旧轮胎钢丝沥青混合料的科学性与可行性。通过对比试验,分析不同钢丝掺量下,层布式与乱向分布式废旧轮胎钢丝沥青混合料的抗裂性能差异。结果表明:(1)与乱向分布式相比,层布式废旧轮胎钢丝沥青混合料的抗裂性能显著提升;(2)层布式废旧轮胎钢丝的最佳掺量为0.5%~1.5%;(3)在适宜掺量下,层布式废旧轮胎钢丝沥青混合料的劈裂抗拉强度较基准沥青混合料提高21.1%~31.6%,平均线收缩系数降低12.1%~13.8%。In order to improve the crack resistance of asphalt mixture and promote the application of mixed length layered waste tire steel wire in asphalt mixture,the theoretical formula of effective length of waste tire steel wire was derived by establishing a crack resistance model for waste tire steel wire.Combined with the stress and crack conditions of asphalt pavement,the the science and feasibility of layered waste tire steel wire asphalt mixture were verified.The crack resistance of layered and randomly distributed waste tire steel wire asphalt mixtures based on the amount of steel wire were studied by comparative experiments.The research results indicate that:(1)The crack resistance of the asphalt pavement with layered waste tire steel wire is better than that with randomly distributed waste tire steel wire;(2)The appropriate amount of layered waste tires steel wire is 0.5%to 1.5%;(3)When the appropriate dosage is used,the splitting tensile strength of the layered waste tire steel wire asphalt mixture increased by 21.1%to 31.6%compared with the reference asphalt mixture,while the average linear shrinkage coefficient decreased by 12.1%to 13.8%.

关 键 词：层布式 废旧轮胎钢丝 沥青混合料 有效长度理论 劈裂抗拉强度 

分 类 号：U416.217[交通运输工程—道路与铁道工程]