废胶粉改性沥青在公路工程中的应用  

Application of Waste Rubber Powder Modified Asphalt in Highway Engineering

作　　者：甄建平 ZHEN Jian-ping(Zhangjiakou Highway Engineering Management Office,Zhangjiakou 075000,China)

机构地区：[1]张家口市公路工程管理处,河北张家口075000

出　　处：《工程建设与设计》2022年第1期95-97,共3页Construction & Design for Engineering

摘　　要：结合工程实例对废胶粉改性沥青施工技术进行了研究,详细介绍了橡胶沥青施工工艺和质量控制方法。通过试验路段进行高低温性能试验,得出以下结论:在车辙试验中,橡胶沥青动稳定度平均值为2042次/mm,基质沥青动稳定度平均值为983次/mm,说明橡胶沥青高温条件下更为稳定,且在低温条件下橡胶沥青混合料的抗弯拉强度和弯曲应变更好。Combined with the engineering example,the construction technology of waste rubber powder modified asphalt is studied,and the construction technology and quality control method of rubber asphalt are introduced in detail.The high and low temperature performance test is carried out through the test section,and the following conclusions are drawn:In the rut test,the average dynamic stability of rubber asphalt is 2042 times/mm,and the average dynamic stability of base asphalt is 983 times/mm,indicating that rubber asphalt is more stable at high temperature,and the flexural tensile strength and bending strain of rubber asphalt mixture are better at low temperature.

关 键 词：废旧胶粉 车辙试验 低温弯曲试验 施工工艺 

分 类 号：U414[交通运输工程—道路与铁道工程] U416.217