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Water sorption properties of hardened cement paste cured or stored at elevated temperatures |
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| Authors: | Walter H. Bray Erik J. Sellevold |
| Affiliation: | Division of Construction Technology State University of New York, Delhi, New York, USA Building Materials Laboratory Technical University of Denmark, 2800, Lyngby, Denmark |
| Abstract: | Structural changes take place when mature hardened cement paste cured at room temperature is heated. BET Vm values were found to decrease as a function of the time the specimens had been stored in water either at 60°C or at 100°C. The decrease is greatest at 100°C. The complete water adsorption isotherms show that heating also makes the pore structure more coarse. The development of BET surface areas for pastes cured near 100°C depend strongly on the temperature history before the curing temperature is reached. |
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