透水混凝土路面渗透试验尺寸效应研究

Study on size effect of permeability test in pervious concrete pavement

透水混凝土路面是海绵城市的重要组成部分。渗透系数是表征透水混凝土路面渗透性能的重要参数,其测试结果受测试仪器尺寸影响较大。设置3种粗骨料粒径的透水混凝土路面,每种透水混凝土路面设置5种内径的渗透仪器,进行透水混凝土路面渗透试验尺寸效应研究,旨在探讨如何选取透水混凝土路面渗透试验仪器内径,为室内准确测定透水混凝土路面渗透系数提供依据。

Pervious concrete pavement is an important part of sponge city.Permeability is an important characteristic of pervious concrete pavement,and the measurements are greatly affected by the size of the test instrument.Three coarse aggregate sizes of pervious concrete pavement were selected.Five inside diameters of penetration instruments were selected for each pervious concrete pavement.Thus,the size effect of permeability test in pervious concrete pavement was studied.The aim of this study was to explore how to select the inside diameter of test instrument for the measurement of permeability in pervious concrete pavement,and to provide evidence for accurate determination of permeability in pervious concrete pavement.