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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2007, Vol. 8 Issue (5): 675-681    DOI: 10.1631/jzus.2007.A0675
Civil Engineering     
Fire’s effect on chloride ingress related durability of concrete structure
JIN Wei-liang, ZHANG Yi
Structural Engineering Institute, Zhejiang University, Hangzhou 310027, China
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Abstract  This paper describes the effects of fire on durability of reinforced concrete structures, and points out that fire not only damages the chemical composition and physical structure of concrete by high temperature, but also leads to an additional risk due to the generation of polyvinyl chloride (PVC) combustion gases. A mathematical model is proposed to calculate chloride ingress profiles in fire damaged concrete, so as to explore the service life prediction of the structure. Rapid Chloride Migration (RCM) test was carried out to determine the chloride diffusion coefficients for the application of the mathematical model. Finally, the detected results of a reported case testified to the validity of the mathematical model.

Key words： Fire      High temperature      Polyvinyl chloride (PVC)      Mathematical model      Rapid Chloride Migration (RCM)     
Received: 23 May 2006     
CLC:  TU5  
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Cite this article:

JIN Wei-liang, ZHANG Yi. Fire’s effect on chloride ingress related durability of concrete structure. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2007, 8(5): 675-681.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2007.A0675     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2007/V8/I5/675

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