Karim, M.R. and Krabbenhoft, K. (2010) Extraction of effective cement paste diffusivities from X-ray microtomography scans. Transport in Porous Media, 84 (2). pp. 371-388. ISSN 0169-3913, DOI https://doi.org/10.1007/s11242-009-9506-y.
Full text not available from this repository.Abstract
The problem of extracting effective diffusivities of cement pastes on the basis of X-ray microtomography images is considered. A general computational homogenization framework is developed and applied to a variety of cement pastes whose microstructure has been digitized to a resolution of 1 mu m. At this resolution, important submicron features are not resolved. Consequently, we propose a methodology whereby the pore space is ascribed a diffusivity less than the free diffusivity. For this purpose, a simple rule that incorporates microtomography data is proposed and shown to yield satisfactory results.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Additional Information: | 641GF Times Cited:3 Cited References Count:32 |
| Uncontrolled Keywords: | Homogenization, Microtomography, xmt, cement paste, diffusion, finite elements, Representative volume element, 2-dimensional composites, transport-properties, migration test, Size, Concrete |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Engineering |
| Depositing User: | Mr Jenal S |
| Date Deposited: | 04 Apr 2014 01:31 |
| Last Modified: | 04 Apr 2014 01:31 |
| URI: | http://eprints.um.edu.my/id/eprint/8781 |
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