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Analytical and Numerical Models of Transport in Porous Cementitious Materials

Published online by Cambridge University Press:  21 February 2011

Edward J. Garboczi  and
Dale P. Bentz
Edward J. Garboczi
Affiliation:
National Institute of Standards and Technology and Center for Advanced Cement-Based Materials Building Materials Division, 226/B348 Gaithersburg, Maryland 20899
Dale P. Bentz
Affiliation:
National Institute of Standards and Technology and Center for Advanced Cement-Based Materials Building Materials Division, 226/B348 Gaithersburg, Maryland 20899
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Abstract

Fluid flow under applied pressure gradients and ionic diffusion under applied concentration gradients are important transport mechanisms that take place in the pore space of cementitious materials. This paper describes: 1) a new analytical percolation-theory-based equation for calculating the permeability of porous materials, 2) new computational methods for computing effective diffusivities of microstructural models or digitized images of actual porous materials, and 3) a new digitized-image mercury intrusion simulation technique.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 176: Symposium U – Scientific Basis for Nuclear Waste Management XIII , 1989 , 675
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

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