Permit法检测碱矿渣混凝土抗渗性的适用性研究

Experimental study on Impermeability Detection of Alkali-activated Slag Concrete with Permit method

混凝土抗渗性是评价混凝土结构耐久性的重要指标,目前其检测方法众多,而Permit法因具有操作简单、可以现场试验的优点,得到广泛运用。在试验条件下,该文对Permit法是否适合检测碱矿渣混凝土抗渗性进行了探索研究,试验得到的碱矿渣混凝土氯离子扩散系数,较真实反映了碱矿渣混凝土的抗渗性能,得出Permit法也适合检测碱矿渣混凝土抗渗性的结果。

Concrete impermeability is an important indicator to evaluate the durability of concrete structures. There are many methods to detect the con-crete impermeability, and Permit method is widely adopted for the advantages of simple operation and the field test. In the laboratory, the detection of al-kali-activated slag concrete impermeability is carried on with Permit method. The chloride ion diffusion coefficient of alkali-activated slag concrete can truly reflect its impermeability in the test, so it proves that Permit method is also suitable for detecting alkali-activated slag concrete impermeability.