Print Email Facebook Twitter Influence of different corrosion solutions on reinforced concrete by DIC and traditional strain test Part of: 4th International Rilem Conference on Microstructure Related Durability of Cementitious Composites· list the conference papers Title Influence of different corrosion solutions on reinforced concrete by DIC and traditional strain test Author Wang, XiaoX (Southeast University, China) Liu, JiaP (Southeast University, China - State Key laboratory of High Performance Civil Engineering Materials, China) Zhong, PeiH (Southeast University, China) Date 2021-04-29 Abstract When the corrosion expansion stress of the steel reinforcement exceeds the ultimate tensile strength of the concrete, the concrete will crack and eventually cause structural damage. Therefore, direct characterization methods of steel corrosion expansion stress can help predict the concrete cracking time, prevent corrosion expansion and repair the reinforcement concrete in advance. In this paper, by using the digital image correlation technology (DIC) to monitor the surface strain of concrete, and using the hollow steel bar to catch the strain of the steel bar under the condition of constant potential acceleration, the experiment and theory are established to characterized the relationship between the corrosion expansion stress and the concrete surface deformation. Besides, different corrosion solutions were applied to the specimens to investigate the effect of the corrosion solution on the corrosion rate of the steel bars in the concrete. The results show that the corrosion rate is seawater > 3% NaCl solution > 3% NaCl + 5% Na2SO4 composite solution. Among them, sulfate ions inhibited the promotion of chloride ions corroding on steel bars to a certain extent. Subject DICReinforced concreteCorrosionCorrosion expansion stress To reference this document use: http://resolver.tudelft.nl/uuid:6bce32b4-a74b-4b13-8cdd-ad998b9ca268 Part of collection Conference proceedings Document type conference paper Rights (c) 2021 the authors Files PDF Influence of different co ... n test.pdf 1.21 MB Close viewer /islandora/object/uuid:6bce32b4-a74b-4b13-8cdd-ad998b9ca268/datastream/OBJ/view