机构地区: 广东工业大学材料与能源学院
出 处: 《中国海洋大学学报(自然科学版)》 2012年第9期59-63,共5页
摘 要: 根据人工模拟的流动海水环境(流速约为0.15m/s)下的混凝土侵蚀试验测得的混凝土中氯离子质量分数,分别测定了腐蚀350,380,400d后混凝土的氯离子扩散系数,并计算和预测了混凝土人工鱼礁的耐久性寿命。研究结果表明:氯离子在混凝土人工鱼礁中的扩散规律基本上遵循Fick第二定律;钢筋混凝土人工鱼礁的耐久性寿命与保护层厚度的平方成正比;海水盐度对混凝土人工鱼礁的耐久性寿命影响较大。 According to the concentrations of chloride ions in corrosion tests on concrete under artificial running seawater environment(flowing velocity is 0.15 m/s),the diffusion parameters of concrete after corrosion of 350,380,400d were studied.The service life of the reefs were calculated and predicted.The results show that the diffusion of chloride ion in the artificial reefs follows Fick’s second law.The service life of artificial reefs increases upon increasing the square of thickness of concrete protective layer.Salinity of the seawater has great influence on the service life of concrete reefs.