刚性聚丙烯纤维改性透水混凝土路面的模型试验  

Experiments on Pavement Model of Permeable Concrete with Rigid Polypropylene Fiber

作　　者：刘肖凡[1] 林武星[1] 李继祥[1] LIU Xiao-fan LIN Wu-xing LI Ji-xiang(School of Civil Engineering and Architecture, Wuhan Polytechnic University, Wuhan 430023, Chin)

机构地区：[1]武汉轻工大学土木工程与建筑学院,湖北武汉430023

出　　处：《土木工程与管理学报》2017年第2期33-36,40,共5页Journal of Civil Engineering and Management

基　　金：国家自然科学基金(50908182;51474168)

摘　　要：为研究刚性聚丙烯纤维改性透水混凝土材料作为道路面层的路用性能以及对土基层稳定性的影响,实验室中制作了4组透水混凝土路段模型,实测刚性聚丙烯纤维改性透水混凝土面层的渗透系数为3.13 cm/s,较普通透水混凝土路面具备更优的渗透性能;模拟刚性聚丙烯纤维改性透水混凝土路面在干燥状态及降雨水饱和状态下的承载试验,得到模型路段的标准轴载承载力分别为98和86 k N,较普通透水混凝土路面承载力分别提高了49%和62%。在同种状态的土基上加载,纤维模型路段较普通模型路段有更强的抗弯沉变形能力,相同荷载下刚性聚丙烯纤维路段各点沉降量减小且较均匀,表现出更佳的整体工作性能。In order to study the pavement performance of permeable concrete with rigid polypropylene fiber, and the effect on the stability of soil subgrade while raining, four pavement models are tested. Experiments show that the permeability coefficient of fiber permeable concrete pavement is 3.13 cm/s, which is prior to the ordinary permeable concrete. Carrying capacity of dry and saturated permeable concrete with rigid polypropylene fiber reach to 98 and 86 kN, which is 49% and 62% higher than ordinary permeable concrete. Fiber permeable concrete pavement has batter deflection deformation resistance ability. Under the same load, fiber permeable concrete pavement has less and more uniform settlement, which lead to better integral working performance.

关 键 词：刚性聚丙烯纤维 透水混凝土 模型试验 路用性能 

分 类 号：U414[交通运输工程—道路与铁道工程]