Analysis of Time-Varying Temperature Effect of Hydration Heat of Ultra-High Strength Mass Concrete

YANG Depo; CHEN Rongchang; YANG Rui; ZHANG Yaoting

doi:10.3724/j.gyjzG24043004

Volume 55 Issue 2

Feb. 2025

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2025 > 55(2): 246-253

YANG Depo, CHEN Rongchang, YANG Rui, ZHANG Yaoting. Analysis of Time-Varying Temperature Effect of Hydration Heat of Ultra-High Strength Mass Concrete[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(2): 246-253. doi: 10.3724/j.gyjzG24043004

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YANG Depo, CHEN Rongchang, YANG Rui, ZHANG Yaoting. Analysis of Time-Varying Temperature Effect of Hydration Heat of Ultra-High Strength Mass Concrete[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(2): 246-253. doi: 10.3724/j.gyjzG24043004

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Analysis of Time-Varying Temperature Effect of Hydration Heat of Ultra-High Strength Mass Concrete

doi: 10.3724/j.gyjzG24043004

1. School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;
2. Wuhan Construction Engineering Group Co., Ltd., Wuhan 430090, China

Received Date: 2024-04-30
Available Online: 2025-04-02

Abstract

Abstract

In order to study the time-varying temperature effect of hydration heat of ultra-high strength mass concrete, a finite element model was established based on the anchor foundation of a high tower of Dubai River. Through simulations, the characteristics of temperature distribution of hydration heat of ultra-high strength concrete (C90/105) were obtained, and the pipe cooling system was optimized for temperature control. On this basis, the time-varying temperature effect of hydration heat of ultra-high strength concrete was studied by changing the concrete pouring temperature and the inlet temperature of pipe cooling. The results indicated that the peak surface temperature, the peak internal temperature, and temperature difference between the interior and the surface of the structure were approximately positively correlated with the concrete pouring temperature, and for each 5 ℃ decrease in the pouring temperature, the average maximum temperature difference between the interior and the surface of the concrete structure decreased by approximately 2 ℃. For each 5 ℃ decrease in the inlet temperature of pipe cooling, the average maximum temperature difference between the interior and the surface of the concrete structure diminished by approximately 5 ℃. However, if the inlet temperature was substantially lower than the concrete pouring temperature, the internal temperature of the structure might become lower than the surface temperature. In practical engineering, the reasonable design of ultra-high strength concrete structure and pipe cooling system should be taken into account the requirements of temperature control and resource utilization.
- ultra-high strength concrete,
- mass concrete,
- hydration heat,
- pipe cooling system,
- concrete pouring temperature,
- inlet temperature of pipe cooling

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References

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