这篇论文在增强的具体结构的耐久性上描述火的效果,;指出那火不仅损坏化学作文;由高温度的水泥的物理结构,而且由于聚乙烯化合物的氯化物(PVC ) 的产生导致另外的风险燃烧气体。一个数学模型被建议推测在火的氯化物进入侧面损坏了水泥,以便探索结构的服务生活预言。快速的氯化物移植(RCM ) 测试被执行为数学模型的应用程序决定氯化物散开系数。最后,一个报导案例的检测结果证明了到数学模型的有效性。
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 ofpolyvinyl 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.