期刊
CEMENT AND CONCRETE RESEARCH
卷 33, 期 1, 页码 133-138出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0008-8846(02)00939-0
关键词
diffusion; partially saturated; chlorides; mortar
The paper proposes a combined application of composite theory and Powers' model for microstructural development for the estimation of the diffusion coefficient as a function of the moisture content of a defect-free cementitious material. Measurements of chloride diffusion in mortar samples (440 kg/m(3) rapid-hardening Portland cement, w/c = 0.5, maturity minimum 6 months) stored at 65% and 85% RH, as well as in vacuum-saturated mortar samples, illustrate the applicability of the method. (C) 2003 Elsevier Science Ltd. All rights reserved.
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