Precise Control of Concrete Temperature History for Concrete Buried Heat Source in Winter

被引：1

作者：

Liu L. ^{[1
,2
]}

Zhao W. ^{[1
]}

机构：

[1] School of Resources & Civil Engineering, Northeastern University, Shenyang

[2] School of Civil Engineering, Shenyang Jianzhu University, Shenyang

来源：

Dongbei Daxue Xuebao/Journal of Northeastern University | 2018年 / 39卷 / 03期

关键词：

Buried heat source; Concrete temperature history; Hydration degree; Instantaneous heat equation; Precise control;

D O I：

10.12068/j.issn.1005-3026.2018.03.023

中图分类号：

学科分类号：

摘要：

Aiming at the control temperature method of concrete buried heat source in winer, the influence of heat source on the temperature change of concrete was studied. Based on maturity concept, the effects of temperature and age on the degree of hydration and the development of thermal properties were considered. According to the prediction formula of compressive strength, the temperature history was designed in advance. Based on the first law of thermodynamics, the instantaneous heat equation was established. The precise temperature control method was established and verified by experiments. The results showed that this method can accurately control the temperature rise of concrete, maintain stable temperature, ensure the cooling rate of concrete, and achieve precise control of temperature history and strength of concrete. © 2018, Editorial Department of Journal of Northeastern University. All right reserved.

引用

页码：421 / 425

页数：4

共 10 条

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