Numerical Study of Elastic Properties of ITZ in Hydrating Cement Paste

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F06%3A00122841" target="_blank" >RIV/68407700:21110/06:00122841 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Numerical Study of Elastic Properties of ITZ in Hydrating Cement Paste
Original language description
The interfacial transition zone (ITZ) represents a serious problem when homogenizing elastic properties of cement mortar or concrete. Although many mechanisms contribute to its origin and evolution, only the wall effect will be studied. Commonly acceptedthickness of ITZ, as it appears around the aggregates, is in the range from 0 to 50 ?m. Cement hydration program CEMHYD3D extended with the percolation filtering will be used for the reconstruction of the ITZ and following hydration. Imposing periodic boundary conditions and using FEM leads to effective homogenized elastic properties of ITZ. Depending on the cement fineness, the reduction of Young's modulus against bulk paste was found up to 40 % while Poisson's ratio remained almost the same for the ITZ thickness of 24 ?m. Validation on mortar samples shows that the results are in accordance with experiment.
Czech name
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Czech description
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Publication year
2006
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Advances in Concrete through Science and Engineering, Proceedings of the 2nd International Symposium
ISBN
2-35158-003-6
ISSN
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e-ISSN
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Number of pages
11
Pages from-to
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Publisher name
Rilem Publications s.a.r.l.
Place of publication
Bagneux
Event location
Quebec City
Event date
Sep 11, 2006
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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