Papers by Keyword: Reinforcing Bar Corrosion

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Authors: Yue Li, Xiu Li Du, Chun E Sui
Abstract: Self-compacting Concrete (SCC) has many good properties such as high fluidity, good cohesiveness and resistance to segregation. Therefore, SCC should have higher durability compared to ordinary vibrated concrete in theory. At the same time, the cementitious materials and additives used in SCC are much more than that of used in ordinary concrete, which will cause SCC to generate shrinkage cracks easily and deteriorate its durability. So the durability of SCC should be studied further. In this paper, C30~C60 SCC were prepared, and then the permeability and reinforcing bar corrosion of reinforced self-compacting concrete were conducted. The results show that the permeability of SCC is lower which make sure the embedded reinforcing bars have high resistance to the corrosion.
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Authors: Yue Li, Chao Yan, Xiu Li Du, Yong Zhang, Qiao Lei
Abstract: Self-compacting concrete (SCC) has been used widely. However, the study of life-span prediction of self-compacting reinforced concrete is not enough under chloride ion corrosion condition, For the reinforcing bars corrosion that chlorine ions invade into SCC,the life-span prediction of Self-Compacting Concrete is the key issue. In this paper, the life-span prediction model of SCC structure under chloride ion corrosion condition is established and used to analyze the life-span prediction of SCC samples. Prediction results matched the test results very well, which shows the rationality of this prediction formula.
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