摘要
针对胶浆灌入率的影响因素和影响程度,以及不同灌入率对半柔性路面材料路用性能的影响开展研究。通过室内实验,对比沥青混合料的空隙率、级配类型、水泥胶浆细砂粒径和用量对胶浆灌入率的影响,评估不同胶浆灌入率的半柔性路面材料的高温稳定性和水稳定性。结果表明:灌入率显著影响半柔性材料的高温稳定性和水稳定性,增大沥青混合料的空隙率、选用较小砂胶比和较细粒径的细砂拌制水泥胶浆等方式可提高胶浆灌入率;为保证半柔性路面材料路用性能,胶浆灌入率应至少不低于70%。
Research on influencing factors,influence level of glue filling rate and its influence on road performance of semi-flexible pavement materials is carried out.Through laboratory experiment,effect of the void ratio and gradation type of asphalt mixture with cement mortar fine sand particle size and dosage on glue filling rate is compared.High temperature stability and water stability of semi-flexible pavement materials with different glue filling rates is evaluated.The results show that the filling rate significantly affects the high temperature stability and water stability of semi-flexible materials.Increasing the void ratio of the asphalt mixture,a smaller sand-to-binder ratio and using a finer-grained fine sand to mix cement mortar can improve the cement filling rate.To ensure the pavement performance of the semi-flexible material,cement grout rate should be at least not less than 70%.
作者
陈远远
CHEN Yuanyuan(College of Civil Engineering,Yango University,Fuzhou 350015,China)
出处
《山东理工大学学报（自然科学版）》
CAS
2021年第1期76-81,共6页
Journal of Shandong University of Technology:Natural Science Edition
基金
福建省中青年教师教育科研项目(JT180718)。
关键词
灌入率
湿热地区
半柔性
路用性能
filling rate
hot and humid area
semi-flexible
road performance
