Title:
Concrete Microstructure and its Relationships to Pore Structure, Permeability, and General Durability
Author(s):
D. M. Roy, D. Shi, B. Scheetz, and P. W. Brown
Publication:
Symposium Paper
Volume:
131
Issue:
Appears on pages(s):
139-152
Keywords:
conveying; Darcy's law; durability; log-normal distribution; microstructure; models; percolation; permeability; porosity; pressure; Materials Research
DOI:
10.14359/1205
Date:
3/1/1992
Abstract:
The principal mechanism for the deterioration of concrete is transport of fluids either into or out of the pore structure of hardened body. The fluid transport occurs via a complex network of interconnected porosity incorporating both the cementitious matrix and matrix/aggregate interfacial regions. Paper describes the development of an experimental method and a mathematical background for a rapid water-permeability measurement method and a mathematical model relating porosity, described in terms of a log-normal distribution, to permeability.