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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: A tribute to "Studies of the Physical Properties of Hardened Portland Cement Paste"
Author(s): T.C. Powers and T.L. Brownyard
Publication: Special Publication
Appears on pages(s): 265-618
Abstract:This paper deals mainly with data on water fixation in hardened portland cement paste, the properties of evaporable water, the desnisty of the solid substance, and the porosity of the paste as a whole. The studies of the evaporable water include water-vapor-adsorption characteristics and the thermodynamics of adsorption. The discusssions include the following topics:
1. Theoretical interpretation of adsorption data
2. The specific surface of hardened portland cement paste
3. Minimum porosity of hardened paste
4. Relative amounts of gel-water and capillary water
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
10. Esimation of absolute volume of solid phase in hardened paste
11. Specific volumes of evaporable and non-evaporable water
12. Computation of volume of solid phase in hardened 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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