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Comportement au jeune âge du béton : approche 3D du seuil de percolation mécanique


Congress title :XXIIIèmes Rencontres de l'AUGC "Génie-Civil : Risque et Environnement
Congress town :Grenoble
Congress date :26/05/2005

Document type > *Congrès/colloque

Keywords > concrete, early age, percolation

Research Unit > IRSN/DESTQ/DICST

Authors > BENBOUDJEMA Farid, TORRENTI Jean-Michel

Publication Date > 27/05/2005

Summary

The modelling of evolution of the Young's modulus of concrete at early age has to take into account a mechanical percolation threshold. This threshold, if calculated in 3D, is different of the value obtained in 2D and is a function of the water to cement ratio for cement pastes. With this approach we can also evaluate the evolution of the Young's modulus and show that this evolution is in accordance with the phenomenological relation normally used.
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