Multiphasic Finite Element Modeling of Concrete Hydration

This paper presents a model to predict the development of hydration and its consequences on temperature and water content. As it considers effects of climatic conditions, the proposed model is a promising tool to evaluate the temperature, hydric, and hydration fields of structures in situ. The hydration model predicts the hydration evolution of several main species (i.e., not only clinker but also mineral additions like fly ash or silica fume). For each component, the modeling considers hydration development and chemical interaction between reactions. It also considers temperature and water content effects on reaction kinetics through thermal and hydric activation. Hydration development in turn modifies the thermal and hydric states of material. The result is a numerical model coupling hydration and the thermal and hydric states of cement-based materials. The model was tested on a 27 m(sup)3 concrete block in situ equipped with temperature sensors situated in the core and close to the face exposed to solar radiation.

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  • English

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  • Accession Number: 01046610
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 4 2007 10:51PM