Computational heat and mass transport in concrete walls exposed to fire

被引:22
作者
AbdelRahman, AK [1 ]
Ahmed, GN [1 ]
机构
[1] PORTLAND CEMENT ASSOC,SKOKIE,IL 60077
关键词
D O I
10.1080/10407789608913798
中图分类号
O414.1 [热力学];
学科分类号
摘要
A numerical method has been developed for the prediction of coupled heat and mass transfer and related processes in porous media exposed to elevated temperatures. The computer model predictions have been validated against experimental results of carbonate aggregate concrete slabs subjected to the ASTM E119 standard fire exposure. Output from the model depicts the coupled relationships between the temperature, moisture content, and pore pressure histories and distributions. This article investigates the numerical effect of grid spacing on the pore pressure fluctuations and the influence of the pore pressure on the spalling potential of concrete exposed to elevated temperatures.
引用
收藏
页码:373 / 395
页数:23
相关论文
共 9 条
  • [1] ABRAMS MS, 1968, RES DEP B PORTLAND C, V223
  • [2] MODELING OF CONCRETE SLABS UNDER FIRE
    AHMED, GN
    HUANG, CLD
    [J]. CHEMICAL ENGINEERING COMMUNICATIONS, 1990, 91 : 241 - 253
  • [3] ANDERSON DA, 1984, COMPUT METHODS THERM
  • [4] *ASTM, 1994, 11988 ASTM E
  • [5] BAZANT ZP, 1979, MAG CONCRETE RES, V31, P67
  • [6] HARMATHY TZ, 1969, I EC FUNDAM, V8
  • [7] INFLUENCE OF SLAB THICKNESS ON RESPONSES OF CONCRETE WALLS UNDER FIRE
    HUANG, CLD
    AHMED, GN
    [J]. NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 1991, 19 (01) : 43 - 64
  • [8] Luikov A.V, 1966, HEAT MASS TRANSFER C
  • [9] Patankar S.V., 1980, Numerical Heat Transfer and Fluid-Flow, DOI 10.1201/9781482234213