1 School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China 2 State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
Abstract: With the implementation of maritime power strategy in China, the marine infrastructure engineering construction is unprecedented in scale, and the durability of concrete materials in the coastal environment has gradually attracted people's attention. Chloride ingress is the main factor to cause the deterioration of the durability of reinforced concrete structures in marine environment. Therefore, the experimental research on chloride ion corrosion of concrete in coastal environment has attracted wide attention. The real sea exposure test has some disadvantages, such as large regional impact, poor popularization, long test period and complex influencing factors, which could not provide sufficient data basis for developing prediction model of service life. However, the shortcomings of the real sea exposure test can be effectively made up by the indoor simulation accelerated test. The similarity between the real sea exposure test and the indoor simulation test is used to establish prediction model of service life for marine structures. Further, the indoor simulation test results could be applied to accurately predict the service life of building structure in the field. There have been many researches on the similarity of chloride corrosion resistance between the real sea exposure test and the indoor simulation accelerated test, and some achievements have been achieved. On the one hand, the corresponding similarity model has been established, and then the corrosion law of chloride ion in concrete under the real sea exposure environment and artificial simulation environment has been analyzed and studied theoretically, which lays a certain theoretical foundation for the establishment of the life prediction model. On the other hand, the testing equipment has already been continuously developed and upgraded, which provides a certain technical support for obtaining more accurate and reliable test data. For the tidal environment, some parameters including convective zone depth, surface chloride ion concentration, diffusion coefficient, and peak chloride ion concentration are usually regarded as the key factors for the prediction model of service life, which are considered to analyze the ingress behavior of chloride ions. From the perspective of the real sea exposure test and the indoor simulation test, the research progress of the resistance to chloride corrosion within concrete exposed to marine tidal zone has been summarized. Based on the similarity theory, the similarity of chloride penetration into concrete is analyzed in depth, and the further discussion and prospect are presented.
作者简介: 鲍玖文,青岛理工大学土木工程学院副教授。2018年6月在大连理工大学建设工程学部结构工程专业取得博士学位。主要从事海工混凝土耐久性方面的研究工作。近年来,在混凝土材料耐久性领域发表论文20余篇,包括Journal of Materials in Civil Engineering(ASCE)、Construction and Building Materials、Materials and Structures、Ocean Engineering、《建筑材料学报》和《水利学报》等期刊。 张鹏,青岛理工大学土木工程学院副院长、教授、博士研究生导师。国家优秀青年科学基金获得者,德国“洪堡学者”,从事土木工程材料测试技术、新型建筑材料、混凝土耐久性等领域研究工作。近年来,在混凝土材料耐久性领域发表论文50余篇,包括Cement and Concrete Research、Cement and Concrete Composites、Construction and Building Materials、《材料导报》和《水利学报》等期刊。 赵铁军,青岛理工大学副教长、教授、博士研究生导师。“111计划”项目(高等学校学科创新引智基地)负责人。主要从事混凝土材料与性能研究,主持包括国家自然科学基金重点项目、重点国际合作项目、973计划课题等国家级重大课题。主持胶州湾海底隧道、青岛地铁等重大工程项目研究。发表论文100余篇,出版专著6部,主、参编国家和行业标准10余部,获国家科技进步二等奖等科技奖励近10项。
引用本文:
鲍玖文, 庄智杰, 张鹏, 魏佳楠, 高嵩, 赵铁军. 基于相似性的海洋潮汐区环境混凝土抗氯盐侵蚀性能研究进展[J]. 材料导报, 2021, 35(7): 7087-7095.
BAO Jiuwen, ZHUANG Zhijie, ZHANG Peng, WEI Jianan, GAO Song, ZHAO Tiejun. Research Progress of Chloride Corrosion Resistance of Concrete Exposed to Marine Tidal Environment Based on Similarity Theory. Materials Reports, 2021, 35(7): 7087-7095.
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2021, Vol. 35 
