کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1457848 | 989283 | 2007 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Multiphasic finite element modeling of concrete hydration Multiphasic finite element modeling of concrete hydration](/preview/png/1457848.png)
This paper presents a model predicting the development of hydration and its consequences on temperature and water content. As it considers the 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 (not only clinker but also mineral additions like fly ash or silica fume for instance). For each component, the modeling considers hydration development and chemical interaction between reactions. It also takes into account 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 material.The model was tested on a 27 m3 concrete block in situ equipped with temperature sensors situated in the core and close to the face exposed to solar radiation.
Journal: Cement and Concrete Research - Volume 37, Issue 2, February 2007, Pages 131–138