A Calculation of Theoretical Temperature Rise of Concrete by One-Dimensional Difference Method Considering Cement Hydration

XIE Wen; TIAN Feng; ZHOU Chongxu; CAO Haiming; YANG Kunkun; WANG Xin; YUAN Zhongxia; CHEN Hao

doi:10.13204/j.gyjzG23030409

Volume 53 Issue 10

Oct. 2023

Turn off MathJax

Article Contents

Article Navigation > INDUSTRIAL CONSTRUCTION > 2023 > 53(10): 126-134

XIE Wen, TIAN Feng, ZHOU Chongxu, CAO Haiming, YANG Kunkun, WANG Xin, YUAN Zhongxia, CHEN Hao. A Calculation of Theoretical Temperature Rise of Concrete by One-Dimensional Difference Method Considering Cement Hydration[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(10): 126-134. doi: 10.13204/j.gyjzG23030409

Citation:

XIE Wen, TIAN Feng, ZHOU Chongxu, CAO Haiming, YANG Kunkun, WANG Xin, YUAN Zhongxia, CHEN Hao. A Calculation of Theoretical Temperature Rise of Concrete by One-Dimensional Difference Method Considering Cement Hydration[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(10): 126-134. doi: 10.13204/j.gyjzG23030409

Citation:

XIE Wen, TIAN Feng, ZHOU Chongxu, CAO Haiming, YANG Kunkun, WANG Xin, YUAN Zhongxia, CHEN Hao. A Calculation of Theoretical Temperature Rise of Concrete by One-Dimensional Difference Method Considering Cement Hydration[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(10): 126-134. doi: 10.13204/j.gyjzG23030409

PDF( 2868 KB)

A Calculation of Theoretical Temperature Rise of Concrete by One-Dimensional Difference Method Considering Cement Hydration

doi: 10.13204/j.gyjzG23030409

1. China Nuclear Huachen Construction Engineering Co., Ltd., Xi'an 712000, China;
2. School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
3. Western Civil Engineering Research Center of Disaster Prevention and Mitigation, Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China

Received Date: 2023-03-04
Available Online: 2023-12-18

Abstract

Abstract

Due to the uneven distribution of the temperature field inside the concrete, mass concrete is prone to produce temperature cracks of varying degrees. These temperature cracks often directly affect the construction quality of concrete and the structural safety of buildings. Therefore, it is particularly important to accurately estimate the temperature field of mass concrete, which can provide effective basis and measures for the control of temperature cracks. However, traditional one-dimensional difference method does not take into consideration the fact that thermal parameters of concrete change with the hydration reaction of cementitious materials, which makes some disparities between the calculated result and the actual temperature. Incorporating thermal parameters changes during cement hydration, a phase adjustment coefficient of thermal parameters was proposed. Based on one-dimensional difference method, a new method for calculating theoretical temperature of mass concrete by incorporating the cement hydration and periodic variation law of ambient temperature was proposed. Through the comparison and analysis of the results from mass concrete cube temperature test, it showed that the proposed method could more accurately reflect the maximum temperature at the center of concrete and the time when the maximum temperature occurred.
- one-dimensional difference method,
- cement hydration,
- thermal parameters,
- environmental temperature changes,
- mass concrete

FullText(HTML)

References(20)

References

[1]	韩凤兰. C50底板混凝土一维差分法理论温升与实测值的对比[J]. 建筑施工,2021,43(10):2124-2126.
[2]	江昔平. 大体积混凝土温度裂缝控制机理与应用方法研究[D].西安:西安建筑科技大学,2013.
[3]	韩飞. 差分法在核岛大体积混凝土温度场模拟中的应用[J].中国核电,2015,8(2):133-136.
[4]	李骁春,吴胜兴.基于水化度概念的早期混凝土热分析[J].科学技术与工程,2008(2):441-445.
[5]	崔溦,吴甲一,宋慧芳.考虑水化度对热学参数影响的早期混凝土温度场分析[J].东南大学学报(自然科学版),2015,45(4):792-798.
[6]	朱伯芳. 大体积混凝土温度应力与温度控制[M].北京:中国水利水电出版社,2012.
[7]	陈金雄,张敏,沈丹梅,等.有限差分法的一维热传导方程应用[J].武夷学院学报,2022,41(3):53-57.
[8]	李玉山.基本解方法求解一类热传导方程移动边界问题[J].自动化与仪器仪表,2015(2):113-116.
[9]	张旭清,黄文竹.一维热传导方程的差分法[J].科技视界,2019(7):118-120.
[10]	SAUL A G A. Principles underlying the steam curing of concrete at atmospheric pressure[J]. Magazine of Concrete Research,1951,2(6):127-140.
[11]	Comité Euro-International du Béton(CEB). Durable Concrete Structures:Design Guide[M]. lausanne:CEB,1992.
[12]	NAKAMURA H, HAMADA S,TANINOTO T, et al. Estimation of them alcracking resistance for mass concrete stuctures with uncerta in materi-al properties[J]. ACI Stnuctural Journal, 1999,96(4):509-518.
[13]	LAMOND J,PIELERT J. Significance of tests and properties of concrete and concrete-making materials[M/OL]. ASIM, 2006.https://doi.org/10.1520/STP169D-EB.
[14]	VAN BREUGEL K. Simulation of hydration and formation of struchre inhanlening cement based materials[M]. Delft:Netherlands Delft University Press, 1997.
[15]	DE SCHUTTER G. Finite element simulation of thermalcracking in massive hardening concrete elements usingdegree of hydration based material laws[J]. Computers and Structures,2002,80(27):2035-2042.
[16]	SCHINDLER A K. Concrete hydration,temperature development:and setting at early-ages[D]. Austin:University of Texas at Austin,2002.
[17]	陈长华. 考虑钢筋作用的水工结构施工期温度场与温度应力分析[D].南京:河海大学,2006.
[18]	梁晓鹏.大体积混凝土一维差分法计算与实测对比[J].山西建筑,2014,40(29):125-128.
[19]	王新刚. 大体积混凝土温度应力实用计算方法及控裂工程实例[M].北京:人民交通出版社,2017.
[20]	李东,张晔琛.混凝土水化放热模型的实验分析和计算[J].上海大学学报(自然科学版),2021,27(4):795-802.