海水化学侵蚀作用下混凝土抗拉强度

摘要

Artificial sea water was prepm＇ed, reasonable wet and dry cycle accelerated erosion mechanism was used for the concrete block. The mechanical properties of concrete under 10, 20, 30, 40, 50, 60 times wet and dry cycles was tested, damage variation of the concrete after ero- sion was researched. Concrete tensile strength degradation model under wet and dry cycle was established. In order to effectively assess the con- crete damage under sea water erosion environment.%通过配制人工海水，采用合理的干湿循环加速侵蚀机制，进行了混凝土试块在10次，20次，30次，40次，50次，60次干湿循环后的力学性能测试，研究了混凝土受侵蚀后的表观损伤变化规律，结合实验测试结果建立了混凝土化学侵蚀作用下的抗拉强度退化模型，从而有效评估混凝土在海洋环境下化学侵蚀后的损伤。