The Accelerated Drying of Refractory Concrete – Part 2 Numerical Modelling

Juan Cobos1, James Millard1, Tony Howes2, Greg Palmer3

1 Palmer Tech Group, New Farm QLD 4005/Australia
2 School of Chemical Engineering, The University of Queensland, St. Lucia 4072/Australia
3 Palmer Tech Group, New Farm QLD 4005/Australia

Revision

Volume 6, Issue 4, Pages 89 - 97

Abstract

The aim of this research is to develop a numerical model that can be used to predict pore pressure within a concrete body and the conditions that can lead to faster, safer heating schedules for refractory dryout. Part 1 of this paper (refractories WORLDFORUM 6 (2014) [2] 75–83) discussed the critical material characteristics that influence the drying or removal of water from a cured (or hardened) concrete body. The current research shows that a material’s permeability is probably the most critical parameter controlling the rate of water removal and internal pore pressure within a porous body. It can be deduced from this that a material’s homogeneity, including PP-fibre dispersement, and installed concrete quality can also play a significant role in explosive spalling.

Keywords

drying, spalling, refractory, concrete, numerical modelling

References

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