关键词: 混凝土温度, 温度控制, 温控措施

Abstract: In order to control the concrete pouring temperature of the sluice gate of the Nianpanshan Water Conservancy Project, and meet the requirements of the sluice gate's mass concrete entering temperature. Before the construction of the sluice sluice project, the concrete temperature control plan and design and calculation are carried out. During the construction period, the method of dynamic concrete temperature monitoring and real-time control is adopted according to the pouring schedule. Through calculation, the calculation results such as the maximum adiabatic temperature rise value of the sluice sluice concrete, the sluice sluice concrete center temperature value, the sluice sluice concrete surface temperature value, the sluice sluice concrete surface insulation material thickness value and other calculation results are obtained, which are analyzed and compared with the monitored raw material temperature monitoring value, the temperature monitoring value, the water cooling monitoring value of concrete in warehouse, the pouring silo temperature value, and the insulation temperature monitoring value. The resalts show the extreme maximum temperature in July, the large water height difference during the same period, and big difficuty in concrete temperature control due to frequent temperature drops. Based on the actual situation, the project adopts technical measures such as avoiding the parts with strict requirements for temperature control during the high temperature period, configuring sufficient refrigeration capacity of the cold water station, and timely covering the water surface after closing the warehouse to control the difficulty of concrete temperature control, which provides a certain theoretical and practical basis for temperature control in other mess concrete projects .

Key words: concrete temperature, temperature control, temperature control measures