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Title: Prediction of diffusion coefficients in cement-based materials on the basis of migration experiments

Journal Article · · Cement and Concrete Research
; ;  [1]
  1. Univ. Laval, Ste-Foy, Quebec (Canada)

The chloride diffusion and migration coefficients of 15 different mortar mixtures were systematically compared. Test parameters included water/binder ratio (0.25 and 0.45), type of binder (ASTM type 1, ASTM type 3, and ASTM type 5), use of silica fume and sand volume fractions (0%, 30%, and 50%). Test results indicate the various ways of evaluating chloride transport coefficients generally yield much different values. Test results also show that the assumption of non interacting diffusing flows, used in the mathematical treatment of diffusion and migration equations, is most probably incorrect.

OSTI ID:
417923
Journal Information:
Cement and Concrete Research, Vol. 26, Issue 12; Other Information: PBD: Dec 1996
Country of Publication:
United States
Language:
English