期刊
CEMENT AND CONCRETE RESEARCH
卷 103, 期 -, 页码 226-235出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cemconres.2016.07.017
关键词
Calcium-silicate-hydrate; Kinetics; Growth rate
资金
- Federal Highway Administration [DTFH61-12-H-00003]
- ARRA Grant [611-473300-60026039 PROJ0002228]
Data for the rate of formation of calcium-silicate-hydrate on a calcite substrate are fitted to a model for growth of ellipsoidal particles. The time-dependent driving force for growth is calculated using a solid solution model for calcium-silicate-hydrate. The nucleation density and particle shape are estimated from SEM photos. Good agreement is found for the rate of growth and the fractional coverage of the substrate. The growth rate is found to have a cubic dependence on the supersaturation, and to be sensitive to the concentration of calcium hydroxide when that component is undersaturated. (C) 2016 Elsevier Ltd. All rights reserved.
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