Journal
CEMENT AND CONCRETE RESEARCH
Volume 36, Issue 10, Pages 1954-1968Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cemconres.2006.06.011
Keywords
adsorption; desorption; hysteresis; scanning-isotherms; change of pore structure; inkbottle pores
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The aim of this work is the development of a practicable method for the reliable prediction of the equilibrium hygroscopic water content in hardened cement paste and cement mortars at changing climatic conditions. Sorption thermodynamics and multi-scale pore structure of hardened cement paste build the basis of the new computation procedure. Drying and chemical aging lead to a formation of inkbottle pores. Their influence on sorption behaviour will be considered in particular by including them into the pore model. Experimental data of adsorption, desorption and scanning-isotherms verify the new computation method, which has been called IBP-Method (inkbottle pores). (C) 2006 Published by Elsevier Ltd.
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