Inkbottle Pore-Method: Prediction of hygroscopic water content in hardened cement paste at variable climatic conditions

被引：58

作者：

Espinosa, Rosa Maria ^{[1
]}

Franke, Lutz ^{[1
]}

机构：

[1] Hamburg Univ Technol, Lehr & Forsch Bereich Bauphys & Werkstoffe Bauwes, Hamburg, Germany

来源：

CEMENT AND CONCRETE RESEARCH | 2006年 / 36卷 / 10期

关键词：

adsorption; desorption; hysteresis; scanning-isotherms; change of pore structure; inkbottle pores;

D O I：

10.1016/j.cemconres.2006.06.011

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

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.

引用

页码：1954 / 1968

页数：15

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