期刊
CEMENT AND CONCRETE RESEARCH
卷 70, 期 -, 页码 60-66出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cemconres.2014.10.014
关键词
Cement pastes; Transport properties; Diffusion; Anomalous sorption
资金
- European Union [264448]
We used dynamic sorption balance measurements to evaluate the diffusivity for cement pastes with three different binders (OPC, OPC + 70% slag, OPC + 10% silica fume). The diffusion of water vapor in cement based materials is normally assumed to follow Fick's law of diffusion, but our results clearly show that Ficles law cannot completely describe the sorption process in our materials. In this paper we report the evidence for this anomalous sorption behavior and discuss a possible method to evaluate diffusivities from such measurements. (C) 2015 Elsevier Ltd. All rights reserved.
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