玄武岩纤维增强乳化沥青冷再生混合料的性能研究  

Properties of basalt fiber reinforced emulsified asphalt cold recycled mixture

作　　者：陈则辉 吴喆野 郑育新 冯小伟 吴翔 CHEN Zehui;WU Zheye;ZHENG Yuxin;FENG Xiaowei;WU Xiang(Zhejiang Guangsha Construction Vocational and Technical University,Dongyang 322100;Zhejiang Scientific Research Institute of Transport,Hangzhou 310023;Ningbo Traffic Engineering Construction Group Co.,Ltd.,Ningbo 315000)

机构地区：[1]浙江广厦建设职业技术大学,浙江东阳322100 [2]浙江省交通运输科学研究院,浙江杭州310023 [3]宁波交通工程建设集团有限公司,浙江宁波315000

出　　处：《合成纤维工业》2025年第1期41-46,共6页China Synthetic Fiber Industry

基　　金：浙江省教育厅科研项目资助(Y202352606)。

摘　　要：为了增强乳化沥青冷再生混合料的力学性能与耐久性能,将回收沥青路面材料(RAP)、石灰岩碎石、机制砂按质量比83107混合得到混合料矿料,再掺入一定量的乳化沥青、短切玄武岩纤维搅拌均匀制得玄武岩纤维增强乳化沥青冷再生混合料,考察了玄武岩纤维掺入量对乳化沥青冷再生混合料力学性能的影响,并研究了玄武岩纤维增强乳化沥青冷再生混合料的耐疲劳性能及耐久性能。结果表明:随着玄武岩纤维掺入量的增大,玄武岩纤维增强乳化沥青冷再生混合料的劈裂强度、抗弯拉强度、无侧限抗压强度及动态回弹模量均呈二次函数关系变化,乳化沥青冷再生混合料中掺入的玄武岩纤维质量分数为0.40%较适宜;掺入玄武岩纤维后,乳化沥青冷再生混合料的耐疲劳寿命提高40%~60%,胶轮加载5×10^(5)次后的车辙深度下降34.2%,耐疲劳性能和耐久性能显著增强。In order to enhance the mechanical properties and durability of emulsified asphalt cold recycled mixture,recycled asphalt pavement material(RAP),crushed limestone,and machine-made sand were mixed at a mass ratio of 83107 to obtain a mineral material mixture which was added and mixed evenly with a certain amount of emulsified asphalt and short cut basalt fibers to prepare basalt fiber-reinforced emulsified asphalt cold recycled mixtures.The influence of basalt fiber content on the mechanical properties of emulsified asphalt cold recycled mixtures was investigated,and the fatigue resistance and durability of basalt fiber-reinforced emulsified asphalt recycled mixtures were studied.The results showed that the splitting strength,flexural tensile strength,unconfined compressive strength,and dynamic rebound modulus of the basalt fiber-reinforced emulsified asphalt cold recycled mixtures all showed a quadratic function relationship with the increase of basalt fiber content,and the appropriate mass fraction of basalt fiber added to emulsified asphalt cold recycled mixture was 0.40%;the fatigue life of emulsified asphalt cold recycled mixture was increased by 40%-60%,and the rut depth of the rubber wheel was decreased by 34.2%after 5×10^(5) times of loading,and the fatigue resistance and durability were significantly enhanced after adding basalt fibers.

关 键 词：玄武岩纤维 回收沥青路面材料 冷再生混合料 力学性能 耐久性能 

分 类 号：TQ343[化学工程—化纤工业]