Analysis of semi-adiabiatic tests for the prediction of early-age behavior of massive concrete structures

被引：22
|
作者：
Matthieu, Briffaut [1 ,2 ]
Farid, Benboudjema [1 ]
Jean-Michel, Torrenti [3 ]
Georges, Nahas [1 ,2 ]
机构：
[1] UniverSud Paris, LMT Cachan, ENS Cachan, UPMC,PRES,CNRS UMR8535, Cachan, France
[2] Inst Radioprotect & Surete Nucl, Fontenay Aux Roses, France
[3] Univ Paris Est, Lab Cent Ponts & Chaussees, Paris, France
来源：
CEMENT & CONCRETE COMPOSITES | 2012年 / 34卷 / 05期
关键词：
Early-age; Temperature; Hydration; Concrete; Semi-adiabatic; Heat loss compensation; HEAT EVOLUTION; HYDRATION; TEMPERATURE; CRACKING;
D O I：
10.1016/j.cemconcomp.2011.09.001
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this paper, experimental and numerical results on two types of semi-adiabatic tests have been compared. The semi-adiabatic tests are of particular interest since they are simple and easy to perform. However, their analysis may be still difficult since they are based on several assumptions that need to be addressed. In this paper, a numerical study has been undertaken for validating and rejecting some of these assumptions which may lead to misleading results. Moreover, the effect of apparent activation energy, which is a key role parameter for the prediction of hydration, has been studied. It shows that a dual study is required for both the identification and the prediction of early-age behavior of massive concrete structures. (C) 2012 Published by Elsevier Ltd.
引用
收藏
页码：634 / 641
页数：8
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