| Download | - View accepted manuscript: Diffusion of water and methanol vapor in hydrated Portland cement paste (PDF, 608 KiB)
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| Author | Search for: Beaudoin, J. J.1; Search for: Tumidajski, P. J. |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Subject | adsorption, water, methanol, vapor, cement paste; Concrete |
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| Abstract | Equations are developed to describe the combined effect of diffusion and adsorption of water and methanol vapor in hydrated cement paste. The dynamic equation of flow is obtained by equating the space derivative of the spreading pressure of the adsorbed film to a resistive force equal to the product of the coefficient of resistance and the velocity of the film. Qualitative agreement is found for the diffusion of water and methanol vapor through cement paste when the BET and Langmuir equations respectively are used for adsorption. The diffusion of methanol vapor is underestimated due to intercalation and chemical interaction effects. The validity of Fick's law is discussed. |
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| Publication date | 2006-10-01 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 46715
NRC-IRC-18021 |
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| NPARC number | 20377614 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | c4e00217-54d7-4532-8238-630a347e53aa |
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| Record created | 2012-07-24 |
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| Record modified | 2020-04-22 |
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