A physico-chemical model of the water vapour sorption isotherm of hardened cementitious materials
Wang, Yu, Wang, X, Scholz, MS and Ross, DK 2012, 'A physico-chemical model of the water vapour sorption isotherm of hardened cementitious materials' , Construction and Building Materials, 35 , pp. 941-946.
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This paper reports on the recent development of a physico-chemical model for the water retention characteristic of porous media and its application to the prediction of water vapour sorption isotherm of cementitious materials. This research aims to develop a convenient method for analysis of pore size. The model is used to predict the water vapour isotherm, which is compared with those using a traditional model.
|Themes:||Built and Human Environment|
|Schools:||Colleges and Schools|
Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Civil Engineering Research Centre
|Journal or Publication Title:||Construction and Building Materials|
|Depositing User:||Prof D. Keith Ross|
|Date Deposited:||31 Jul 2012 12:19|
|Last Modified:||19 Aug 2014 10:39|
|References:|| Allen AJ, Thomas JJ. Analysis of C–S–H gel and cement paste by small-angle neutron scattering. Cem Concr Res 2007;37:319–24.  Wheeler A. Presentations at catalysis symposia, Gibson Island A.A.A.S. conferences; 1945 and1946.  Shull CG. The determination of pore size distribution from gas adsorption data. J Am Chem Soc 1948;70:1405–10.  Barrett EP, Joyner LG, Halenda PP. The determination of pore volume and area distributions in porous substances. I. Computations from nitrogen isotherms. J Am Chem Soc 1951;73:373–80.  Pierce C. Computation of pore sizes from physical adsorption data. J Phys Chem 1953;57:149–52.  Baroghel-Bouny V, Mainguy M, Lassabatere T, Coussy O. Characterization and identification of equilibrium and transfer moisture properties for ordinary and high-performance cementitious materials. Cem Concr Res 1999;29: 1225–38.  van Genuchten MT. A closed-form equation for predicting the hydraulic conductivity of unsaturated soils. Soil Sci Soc Am J 1980;44:892–8.  Wang Y, Grove SM, Anderson MG. A physical-chemical model for the static water retention characteristic of unsaturated porous media. Adv Water Resor 2008;31:701–13.  Wang Y. Phase deterministic modelling of water retention in unsaturated porous media and its potential in dynamic unsaturated flow application. J Porous Media 2010;13:261–70.  Churaev NV. Liquid and vapour flow in porous bodies: surface phenomena. Amsterdam: Gorden and Breach Science Publishers; 2000.  Adamson AW. Physical chemistry of surfaces. 5th ed. London: John Wiley & Sons; 1990.  Tuller M, Or D. Unsaturated hydraulic conductivity of structured porous media: a review of liquid configuration-based models. Vadose Zone J 2002;1:14–37.  McCash EM. Surface chemistry. Oxford University Press; 2001.  Brunauer S, Mikhail RS, Bodor EE. Pore structure analysis without a pore shape model. J Colloid Interface Sci 1967;24:451–63.  Kiselev AV. Usp Khim 1945;14:367 [in Russian].  Wang Y. Modelling the t-curve of the water vapour sorption isotherm of nonporous adsorbents and the water retention curve of porous media. Research Report, University of Salford; 2011.  Dullien FAL. Porous media fluid transport and pore structure. USA: Academic Press Inc.; 1991.  Baroghel-Bouny V. Water vapour sorption experiments on hardened cementitious materials: Part I: essential tool for analysis of hygral behaviour and its relation to pore structure. Cem Concr Res 2007;37:414–37.|
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