Analytical model to parameterize the adiabatic temperature rise of concrete

被引：7

作者：

Jeong, Dong Jin ^{[1
]}

Kim, Taehwan ^{[2
]}

Ryu, Jong-Hyun ^{[3
]}

Kim, Jae Hong ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Civil & Environm Engn, Daejeon, South Korea

[2] Univ New South Wales, Ctr Infrastruct Engn & Safety, Sch Civil & Environm Engn, Sydney, NSW, Australia

[3] GS Engn & Construct, Res Inst, Yongin, South Korea

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 268卷 / 268期

基金：

新加坡国家研究基金会;

关键词：

Hydration heat; Thermal cracking; Mass concrete; Specific heat; COMPRESSIVE STRENGTH; HYDRATION KINETICS; FLY-ASH; CEMENT; HEAT; SLAG; PREDICTION; ACTIVATION; MORTARS;

D O I：

10.1016/j.conbuildmat.2020.121656

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Prediction of the temperature history of a mass concrete allows us to respond possible risks of cracking at early age and resultant serviceability. The adiabatic temperature rise of a given concrete mix is the input heat source for the prediction of the temperature history. However, its measurement requires a high volume of a sample and thus a practical test is limited with a few mixtures of candidates. This paper presented the model to compute the adiabatic temperature rise in concrete based on isothermal calorimetry of its paste binder, which is much simpler and practical. The model is verified by comparing its prediction results with the measurement. Furthermore, a guideline to develop an adiabatic temperature rise is also suggested using the model prediction. The model can be a promising method to practically predict the temperature profile of a mass concrete using the isothermal calorimetry. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：8

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