Measuring Permeability of Rigid Materials by a Beam-Bending Method: III, Cement Paste

The evolution of permeability and elastic modulus for Type III portland cement pastes with water/cement ratios varying from 0.4 to 0.6 were measured using a beam‐bending method. Young's modulus was independently verified by measuring the ultrasonic pulse velocity. The permeability ranged over 2...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2002-06, Vol.85 (6), p.1537-1544
Main Authors: Vichit-Vadakan, Wilasa, Scherer, George W.
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Cement concrete constituents
Cements
Exact sciences and technology
Materials
permeability
Properties and test methods
Properties of anhydrous and hydrated cement, test methods
Young's modulus
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Summary:The evolution of permeability and elastic modulus for Type III portland cement pastes with water/cement ratios varying from 0.4 to 0.6 were measured using a beam‐bending method. Young's modulus was independently verified by measuring the ultrasonic pulse velocity. The permeability ranged over 2 orders of magnitude, depending on the water/cement ratio and the age of the samples. The advantage of the beam‐bending method is that the permeability results are obtained in a few minutes to a few hours, whereas conventional techniques take hours or days to measure permeability of this order of magnitude. More importantly, there is no need to maintain high pressure during the measurement period, so leaks are not a problem.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.2002.tb00309.x