THE INFLUENCE OF AN IMPERMEABLE SURFACE ON PORE STEAM PRESSURE DURING DRYING OF REFRACTORY CONCRETE SLABS

被引：13

作者：

GONG, ZX

MUJUMDAR, AS

机构：

[1] Department of Chemical Engineering, McGill University, Montreal

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1995年 / 38卷 / 07期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0017-9310(94)00239-R

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A finite-element model is developed for the heat and mass transfer process in refractory concrete. Using this model, simulations are carried out for drying of refractory concrete slabs heated on one side only to investigate the effects of an impermeable surface, which may be either the heated face or the unheated face, on pore steam pressure and moisture removal rate. Simulation results indicate that the presence of an impermeable surface produces a very significant rise of pore steam pressure which may result in explosive spalling of the concrete.

引用

页码：1297 / 1303

页数：7

共 11 条

[1]

Bazant, Thonguthai, Pore pressure and drying of concrete at high temperature, Proceedings of the American Society of Civil Engineers, 104, pp. 1059-1079, (1978)

[2]

Bazant, Thonguthai, Pore pressure in heated concrete walls: theoretical prediction, Mag. Concrete Res., 31, 107, pp. 67-76, (1979)

[3]

Bazant, Chern, Thonguthai, Finite element program for moisture and heat transfer in heated concrete, Nuclear Engineering and Design, 68, pp. 61-70, (1981)

[4]

Dhatt, Jacquemier, Kadje, Modelling of drying refractory concrete, Drying '86, 1, pp. 94-104, (1986)

[5]

Gong, Song, Mujumdar, Numerical simulation of drying of refractory concrete, Drying Technol., 9, pp. 479-500, (1991)

[6]

Gong, Zhang, Mujumdar, Prediction of pore pressure of refractory concrete produced by firing, Drying '92, pp. 1780-1789, (1992)

[7]

Gong, Mujumdar, A model for kilndrying of refractory concrete, Drying Technol., 11, pp. 1617-1639, (1993)

[8]

Gong, Mujumdar, A two-dimensional finite element model for kiln-drying of refractory concrete, Drying Technol., (1995)

[9]

Zienkiewicz, The Finite Element Method, (1977)

[10]

Hughes, Pister, Taylor, Implicit-explicit finite elements in nonlinear transient analysis, Computer Methods in Applied Mechanics and Engineering, 17, 18, pp. 159-182, (1979)

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