Experimental and Numerical Investigations of the Effect of Curing Conditions on the Temperature Rise of Concrete

IF 1.8 4区工程技术 Q3 ENGINEERING, CIVIL

International Journal of Civil Engineering Pub Date : 2024-04-10 DOI:10.1007/s40999-024-00966-1

Aleksandra Kuryłowicz-Cudowskaa

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Abstract

This paper presents experimental and numerical studies investigating the impact of three curing conditions on temperature evolution in concrete cubes. The tests were performed on samples of the same volume (3.375 dm³) under different curing conditions: room temperature, insulation boxes, and adiabatic calorimeter. Various cements (Portland cement, Portland composite cement, and blast furnace slag cement) and aggregates (gravel and basalt) were examined. The temperature evolution for all mixtures was analyzed, revealing a correlation between temperature increase and concrete type. Under insulation and adiabatic curing, Portland cement with gravel aggregate exhibited the highest temperature rise, while blast furnace slag cement with basalt aggregate showed the lowest increase. The incorporation of slag, ash, or other mineral additives reduced temperature rise. Additionally, basalt aggregate’s higher heat capacity and thermal energy accumulation led to a decreased temperature increase compared to gravel. Using recorded thermal data, a numerical procedure predicting temperature development in nonadiabatic conditions through direct adiabatic tests is proposed. Comparisons between experimental and numerical temperature evolutions confirmed the model’s accuracy.

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养护条件对混凝土温升影响的实验和数值研究

本文通过实验和数值研究，探讨了三种养护条件对混凝土立方体中温度演变的影响。测试是在室温、保温箱和绝热量热仪等不同养护条件下对相同体积（3.375 dm3）的样品进行的。测试了各种水泥（硅酸盐水泥、硅酸盐复合水泥和高炉矿渣水泥）和集料（砾石和玄武岩）。对所有混合物的温度变化进行了分析，发现温度上升与混凝土类型之间存在相关性。在保温和绝热养护条件下，硅酸盐水泥与砾石骨料的温升最高，而高炉矿渣水泥与玄武岩骨料的温升最低。掺入矿渣、灰分或其他矿物添加剂可降低温升。此外，与砾石相比，玄武岩骨料的热容量更大，热能积累更多，从而降低了温升。利用记录的热数据，提出了一种通过直接绝热试验预测非绝热条件下温度发展的数值程序。实验和数值温度演变之间的比较证实了模型的准确性。

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来源期刊

International Journal of Civil Engineering ENGINEERING, CIVIL-

CiteScore

3.90

自引率

5.90%

发文量

审稿时长

15 months

期刊介绍： International Journal of Civil Engineering, The official publication of Iranian Society of Civil Engineering and Iran University of Science and Technology is devoted to original and interdisciplinary, peer-reviewed papers on research related to the broad spectrum of civil engineering with similar emphasis on all topics.The journal provides a forum for the International Civil Engineering Community to present and discuss matters of major interest e.g. new developments in civil regulations, The topics are included but are not necessarily restricted to :- Structures- Geotechnics- Transportation- Environment- Earthquakes- Water Resources- Construction Engineering and Management, and New Materials.