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采用同一强度等级、同一尺寸的混凝土试件进行不同干湿循环制度的加速硫酸盐腐蚀试验,寻求适合于试验室进行的快速硫酸盐腐蚀干湿循环制度。结果表明:混凝土在制度二下,ω1能反映混凝土性能劣化或失效的过程,ω2也能反映混凝土性能劣化的状态,ω1和ω2对混凝土性能劣化状态的评定结果一致性较好,在实验室进行混凝土耐久性检测时,采用制度二能够有效缩短试验时间,较早得到试验结果,推荐在实验室进行混凝土耐硫酸盐腐蚀性预测实验时使用制度二的干湿循环。
Using the same strength grade, the same size of concrete specimens for different wet and dry cycle accelerated sulfate corrosion test, to find suitable for laboratory rapid sulfate wet-dry corrosion cycle system. The results show that in the second system, ω1 can reflect the process of deterioration or failure of concrete performance, and ω2 can also reflect the state of deterioration of concrete performance. The agreement of ω1 and ω2 on the assessment of concrete performance deterioration state is good. Concrete durability test, the use of the second system can effectively shorten the test time, the test results obtained earlier, recommended in the laboratory sulfate sulfate corrosion prediction experiment using the system two wet-dry cycle.