混凝土及其它建筑材料的耐久性在工程实践中深为人们所重视。目前,国内外工程界普遍认为耐久性同强度一样,是混凝土的一个重要质量指标。随着新品种水泥的不断出现、各种新型外加剂的广泛掺用,检验或评定混凝土耐久性的工作将是经常需要进行的。 影响混凝土耐久性的主要因素有干湿交 The durability of concrete and other building materials is deeply valued in engineering practice. At present, the engineering community generally believe that durability is the same with the strength, which is an important quality index of concrete. With the advent of a new breed of cement, the widespread incorporation of various new admixtures, testing or assessing the durability of concrete will often be required. The main factors affecting the durability of concrete are wet and dry