Application of temperature control technology for mass concrete in ship lock
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Abstract:
Aiming at the common phenomenon that mass concrete frequently produces temperature cracks,we study and summarize the concrete temperature control measures and temperature control standards according to the concrete engineering,study the temperature control standards and requirements by the finite element simulation and analysis,determine them by engineering experience,summarize the temperature control measures including controlling the raw material temperature,setting the cooling water pipe system,and monitoring the temperature change in real time,and obtain the recommended values of main indexes such as mould temperature,internal maximum temperature,internal and external temperature difference,cooling rate,temperature difference between cooling water and concrete,opening time and water stop standard.The results show that controlling the raw material temperature and setting the cooling water pipe system can improve the crack resistance of concrete,well control the development of the structure temperature crack,and improve the safety and durability of the structure.