高强高性能混凝土蒸汽压致爆机理研究

With extensive range of applications, the spalling issue under fire or high temperature has come to the high strength and high performance concrete, which has increasingly drawn the attention of science and engineering fields. But so far, the spalling mechanisms have not yet been thoroughly approached. According to the current researches, vapor pressure spalling mechanism has been accepted gradually. This paper has summarized the research results about vapor pressure theory, analyzed the evaporation process of concrete internal water, moisture and heat transfer and their coupling model, numerical calculation and laboratory measurement of the vapor pressure and the influence factors, which is intended to offer references to explore the effect of vapor pressure on the spalling of HSC/HPC.