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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 29, 1996 - Issue 4
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Original Articles

COMPUTATIONAL HEAT AND MASS TRANSPORT IN CONCRETE WALLS EXPOSED TO FIRE

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Pages 373-395 | Received 30 Aug 1995, Accepted 24 Oct 1995, Published online: 03 Apr 2007
 

Abstract

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.

Notes

Address correspondence to Dr. Gamal N. Ahmed, Portland Cement Association, 5420 Old Orchard Road, Skokie, IL 60077-1083, USA.

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