System and method for measuring and controlling hydration heat in mass concrete

Abstract

The invention relates to a system and a method for measuring and controlling hydration heat in mass concrete and relates to the field of automatic control systems for civil engineering construction. The system comprises a circulating cooling water system, a central control unit, a frequency converter, a plurality of temperature sensors and a computer. The central control unit is connected with the frequency converter, the computer and the temperature sensors. The frequency converter is further connected with the circulating cooling water system. The temperature sensors are disposed inside concrete and feed temperature information back to the central control unit. The central control unit sends a control command to the frequency converter according to the temperature information. The frequency converter drives the circulating cooling water system to change flow of circulating cooling water, and meanwhile, the central control unit transmits real-time information to the computer. The system and the method have the advantages that manual work is omitted, temperature changes inside concrete can be measured in real time, and work efficiency is improved; flow quantity of cooling water is automatically adjusted, so that implementation controllability is ensured; storage and subsequent analysis of data can be facilitated.

Description

technical field [0001] The invention relates to the field of automatic control systems for civil engineering construction, in particular to a system and method for measuring and controlling the hydration heat temperature of large-volume concrete. Background technique [0002] In the fields of bridge, water conservancy, hydropower and other engineering constructions, the construction of large volume concrete is often encountered. According to the different sizes of building components, pour the finished concrete slurry into the pre-set ordinary concrete formwork, and after it hardens, it becomes a concrete component. However, the cementitious substance (generally ordinary portland cement) will generate a large amount of heat due to the chemical reaction with water, which is usually called "hydration heat". The generation of heat of hydration has a great impact on the quality of concrete, especially when the volume of concrete components is large, due to the difference in hea...

AI Technical Summary

Problems solved by technology

[0004] 1. Since the concrete solidification process takes a long time, the temperature inside the concrete is measured by manual timing and fixed points, which increases labor intensity and reduces work efficiency

[0005] 2. When the internal temperature of the concrete changes and the flow of cooling water needs to be manually adjusted, the flow of cooling water cannot be adjusted manually. Since real-time measurement cannot be realized, the flow of cooling water cannot be adjusted in real time according to the change of the internal temperature of the concrete. control uncertainty of the whole system

[0006] 3. The technical data of on-site measurement are all manually recorded, which is not convenient for storage and comprehensive analysis in the future

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