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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Studies of the Physical Properties of Hardened Portland Cement Paste
Author(s): T. C. Powers and T. L. Brownyard
Publication: Journal Proceedings
Appears on pages(s): 469-504
Abstract:In nine parts, Part 1. A Review of Methods That Have Been Used for Studying the Physical Properties of Hardened Portland Cement Paste Part 2. Studies of Water Fixation Appendix to Part 2 Part 3. Theoretical interpretation of Adsorption Data Part 4. Thermodynamics of adsorption Appendix to Parts 3 and 4 Part 5. Studies of the Hardened Paste by Means of Specific-Volume Measurements Part 6. Relation of Physical Characteristics of the Paste to Compressive Strength Part 7. Permeability and Absorptivity Part 8. The Freezing of Water in Hardened Portland Cement Paste Part 9. General Summary of Findings on the Properties of Hardened Portland Cement Paste This paper deals mainly with data on water fixation in hardened portland cement paste, the properties of evaporable water, the density of the solid substance and the porosity of the paste as a whole. The studies of the evaporable water include water-vapor-adsorp- tion characteristics and the thermodynamics of ad- sorption. The discussions include the following topics: I. Theoretical interpretation of adsorption data 2. The specific surface of hardened portland ce- ment paste. 3. Minimum porosity of hardened paste 4. Relative amounts of gel-water and capillary 5. The thermodynamics of adsorption 6. The energy of binding of water in hardened paste 7. ‘Swelling pressure 8. Mechanism of shrinking and swelling 9. Capillary-flow and moisture diffusion IO. Estimation of absolute volume of solid phase in hardened paste I I. Soecific volumes of evaporable and nonevap- ora ble water 12. Computation of volume of solid phase in hard- ened ’ paste 13. Limit of hydration of portland cement 14. Relation of physical characteristics of paste to compressive strength 15. Permeability and absorptivity 16. Freezing of water in hardened portland cement paste
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