混凝土抗氯离子渗透性试验方法比较研究

Investigation of test methods for concrete resistance to chloride ion permeability

采用ASTMC12 0 2、稳态电迁移方法和电导方法 ,对掺各种掺合料的混凝土及普通混凝土、轻骨料混凝土进行抗氯离子渗透性研究 .结果表明 ,ASTMC12 0 2在多数情况下具有较好的适用性 ,特别适用于不掺掺合料的中等强度普通混凝土 ;

An experimental study is performed on the impermeability of some kinds of concrete against chloride ions, including the portland cement concrete, lightweight concrete, and the concrete mixed with different mineral admixtures, by use of the ASTM C1202 method, the steady-state charge migration test method, and conductivity test method. Tests indicate that, in most cases, the ASTM C1202 method is of high applicability, especially suitable for the portland cement concrete of moderate strength, and that the rapid chloride permeability test method can only be used in some special cases.