混凝土砂浆相渗透特性试验研究

Experimental Research on Permeability Characteristic of Concrete Mortar Phase

从细观层次对混凝土材料的渗透特性进行了研究,并分析了细观组成对混凝土材料整体渗透特性的影响,分别对3个不同强度等级、6种配合比的混凝土中砂浆相制成的试件进行了抗渗试验。通过试验研究了混凝土中砂浆相渗透系数随水灰比及灰砂比产生的变化,并通过与前人进行的混凝土、岩石抗渗试验结果进行对比,分析了混凝土细观组分对其整体渗透特性的影响,证明了界面过渡区是混凝土内部渗流的主要通道。

In order to study the permeability of concrete from the mesoscopic level, and analyze the influence of the microstructure on the overall permeability of concrete, the anti-permeability tests are carried out on 3 different strength grades, namely 6 kinds of mixing proportions. Through the test, the changes of mortar phase permeability coefficient with different water cement ratios and cement sand ratios are studied, and by comparing with the concrete and rock permeabili- ty test results that are previously studies by others, the influence of concrete component of the overall permeability is ana- lyzed, and the interracial transition zone is proved to be the main channel of inside concrete seepage.