混凝土渗透性试验方法研究进展  

Research progress on the permeability test methods of concrete

作　　者：宁喜亮[1] 韩丰 NING Xiliang;HAN Feng(School of Architecture and Civil Engineering,Northeast Electric Power University,Jilin 132012,China)

机构地区：[1]东北电力大学建筑工程学院,吉林吉林132012

出　　处：《混凝土》2023年第3期12-18,共7页Concrete

基　　金：国家自然科学基金(51608100);吉林省科技厅优秀青年人才基金(20190103048JH)。

摘　　要：渗透性是表征混凝土耐久性的重要指标之一,直接决定了气体和液体在混凝土内部渗透、扩散和迁移的难易程度。近年来,各种新型混凝土不断涌现,所处环境越来越复杂,传统混凝土渗透性测试方法已不能满足工程应用的需要,针对不同需求,适时采用不同测试方法,或者在已有测试方法的基础上进行改进,从而达到不同的测试目的。通过系统对比国内外混凝土渗透性试验方法,并依据不同试验原理总结归纳出四大类10种不同混凝土渗透性试验方法,即水渗法、气渗法、离子扩散系数法以及电参数法,为混凝土渗透性试验研究提供方法参考。Perneability is one of the most important indexes to characterize the durability of concrete,which directly determines the difficulty of gas and liquid′s penetration,diffusion and migration in the concrete.In recent years,various new types of concrete have continuously emerged,and the environment has become more and more complex.Traditional permeability testing methods of concrete can no longer satisfy the requirements of engineering applications.In order to achieve different test purposes,different test methods should be chosen for various types of concrete,or modifications on the existing test methods were carried out.Based on different test principles,it systematically summarizes four categories with eleven different permeability test methods of concrete,compared with test methods at home and abroad.They are water permeation methods,air permeation methods,ion diffusion coefficient methods,and electrical parameter methods respectively.Referenced test methods are given for research on the permeability of concrete.

关 键 词：渗透性 试验方法 耐久性 混凝土 试验原理 

分 类 号：TU528.01[建筑科学—建筑技术科学]