Electric heat tracing is a technology that uses electrical energy to convert into heat energy, and compensates for the heat lost by concrete in winter construction through the heat generated by electric heat tracing, so as to ensure the strength and quality of concrete. Electric heat tracing technology has the advantages of uniform heating, convenient control, no pollution, energy saving and environmental protection, and is widely used in the winter construction of concrete. 
Selection of electric heat tracing in concrete:
Constant power electric heat tracing: The heating temperature of the constant power electric heat tracing is constant and will not be affected by the external ambient temperature, which is suitable for concrete structures with high temperature requirements.
Self-limiting electric heat tracing: Self-limiting electric heat tracing can automatically adjust the heating temperature, and automatically stop heating when the temperature reaches the set value, which is suitable for concrete structures with low temperature requirements.
Mineral insulated electric heat tracing: Mineral insulated electric heat tracing has good fire performance and high temperature resistance, and is suitable for concrete structures with fire protection requirements.
Application of Electric Heat Tracing in Concrete:
1.In the concrete mixing process, the electric heat trace can be laid around the mixing equipment, and the heat generated by the electric heat trace can be used to heat the mixing water and aggregate, so as to increase the mixing temperature of the concrete and ensure the mixing quality of the concrete.
2.In the process of pouring concrete, the electric heat trace can be laid on the formwork or steel bar, and the heat generated by the electric heat trace can heat the concrete to prevent the concrete from freezing damage during the solidification process.
3.In the process of concrete curing, the electric heat trace can be laid on the surface or inside the concrete, and the heat generated by the electric heat trace can compensate for the heat lost by the concrete in the curing process, accelerate the hardening speed of concrete, and improve the strength and durability of concrete.
Advantages of electric heat tracing in concrete:
It can effectively improve the early strength of concrete and shorten the construction period.
It can prevent concrete from freezing damage in winter construction and ensure the quality of concrete.
It has a good energy-saving effect and can save a lot of energy compared with traditional heating methods.
The control is convenient, and the temperature control of the electric heat trace can be realized through the thermostat to ensure the heating effect of the concrete.
Precautions for the installation of electric heat tracing in concrete:
Select the appropriate type and specification of electric heat tracing, and select according to the structure and temperature requirements of the concrete.
Before installing the electric heat tracing, the concrete surface needs to be cleaned to ensure that the electric heat trace can be tightly attached to the concrete surface.
When installing the electric heat tracing, it is necessary to avoid mechanical damage or chemical corrosion of the electric heat tracing to ensure the safe operation of the electric heat tracing.
At the junction of the electric heat tracing, special connectors are used for connection to ensure the reliability and sealing of the connection.
When using an electric heat tracing system, it is necessary to regularly inspect and maintain the electric heat tracing, and find and deal with faults in a timely manner.
Electric heat tracing technologyIt has important application value in the winter construction of concrete, which can effectively ensure the quality and construction progress of concrete. In the process of selection and installation, it is necessary to make reasonable selection and construction according to the actual situation to ensure the safe and reliable operation of the electric heat tracing system.