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Heating wire heating device and construction method for winter concrete

A technology of heating device and electric heating wire, which is applied in the direction of manufacturing tools, ceramic molding machines, building structures, etc., can solve the problems such as the strength of concrete components cannot be increased normally, and achieve the effects of easier guarantee of safety and quality, simple construction, and simple operation

Inactive Publication Date: 2012-04-04
CHINA CONSTR SECOND ENG BUREAU LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a winter concrete electric heating wire heating device and its construction method, which solves the heating problem of concrete construction in winter and solves the technical problem that the strength of concrete components that do not allow the addition of antifreeze cannot increase normally

Method used

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  • Heating wire heating device and construction method for winter concrete
  • Heating wire heating device and construction method for winter concrete
  • Heating wire heating device and construction method for winter concrete

Examples

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Embodiment Construction

[0064] Examples see Figure 1-5 As shown, this winter concrete heating wire heating device includes a plastic cloth isolation layer 15, a heating wire heating circuit and an insulation layer. The plastic cloth isolation layer 15 is laid on the upper surface of the concrete member 7 .

[0065] The electric heating wire heating circuit is connected by a power supply box 6 with multiple use circuits, the main line 8 of each use circuit is at least 10cm apart, and a group of electric heating wires 10 is connected by a lead wire 9, and no more than 15 groups of electric heating wires are connected to each use circuit. Heating wire. The heating wires are arranged on the plastic cloth isolation layer 15 in groups. No more than 15 sets of heating wires are connected to each of the use circuits.

[0066] The main line adopts multi-strand plastic copper wire, and the full name of plastic copper wire is copper core polyvinyl chloride insulated wire. The lead-out wire adopts multi-str...

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Abstract

The invention discloses a heating wire heating device and a construction method for winter concrete. The construction method comprises the following steps of: calculating and determining the total power of adopted heating wires according to physical parameters of concrete members, templates and a heat insulating material, and environmental temperature; determining a heating wire arrangement diagram according to a calculated result; determining a scheme for connecting a power line and the heating wires; pouring concrete, and laying plastic cloth isolating layers on the concrete members; arranging the heating wires on the plastic cloth isolating layers, and immediately covering heat insulating layers on the heating wires; and measuring temperature continuously for three days every 2 hours, and controlling the temperature of the concrete members to be between 10 and 20 DEG C by controlling the on / off of the heating wires. The power supply heating construction method is adopted, the temperature requirement due to strength increase of the winter concrete is met, the constraint of construction conditions and the difficulty of the conventional construction method are avoided, the construction is simple, the operation is convenient and the construction cost is saved. The invention is suitable for winter concrete construction.

Description

technical field [0001] The invention relates to a device and method for electric heating construction of concrete in winter. Background technique [0002] In winter concrete construction, in order to ensure the quality of the concrete, especially to ensure the normal development of the strength of the concrete, two construction methods can generally be used: one is the heat storage method, which is to use the raw materials of the concrete (water, sand, stone) Pre-heating, after mixing, transporting and pouring, the concrete can still maintain a certain positive temperature. Cover it with appropriate materials to prevent heat from being lost too quickly. Make full use of the hydration heat of cement to increase the strength of concrete under positive temperature conditions. . But this method can only be used in components with relatively large hydration heat. For smaller or thinner concrete members that do not allow the addition of antifreeze, the normal growth of its stren...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28B11/24E04G21/02
Inventor 李政刘胜利胡立新郝亚辉李小座
Owner CHINA CONSTR SECOND ENG BUREAU LTD
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