KR20160110709A - Curing Method of Concrete in Winter Season using Electrical Heating Sheet - Google Patents

Abstract

The present invention relates to a cement mortar thermal insulation curing method and a thermal insulation curing apparatus for curing a cement mortar while keeping the cement mortar freezing so as to stabilize the hydration action of the cement mortar during the winter season. And a hot wire is provided between the reinforcing bar and the die.

Description

TECHNICAL FIELD The present invention relates to a cement mortar curing method and a curing method,

The present invention relates to an early curing method and apparatus for cement mortar of winter season, and more particularly, to a method of early curing cement mortar for winter cement mortar, And a thermal curing device.

Since the cement has a function as an adhesive due to the hydration with water, the cement mortar mixed with cement, aggregate and water has a problem in that, when the hydration of the cement proceeds, the hydration is not performed smoothly, Problems can arise.

However, in consideration of the completion of the building, the building must be inevitably built in the winter season. As described above, when building the building in the winter season, the cement mortar is cured by keeping the cement mortar freezing for the normal hydration of the cement mortar .

As a conventional technique for keeping cement mortar at a time of curing, Japanese Patent Application Laid-Open No. 10-1051556-0000 entitled " Method for curing concrete in winter using a luminaire ", Patent Publication No. 10-2008-0099508 entitled " Registered Patent No. 10-0498548-0000 "Winter Concrete Thermal Curing Apparatus" and Registered Utility Model No. 20-0189871-0000 "Concrete Curing Hot Plate".

The above-mentioned Japanese Patent Application No. 10-1051556-0000 is characterized in that the cement mortar is kept warm by using a heat source of a luminaire without using lignite or kerosene, and Japanese Patent Application Laid-Open No. 10-2008-0099508 discloses a heat insulating / The device is characterized by a mold that can be used for all seasons by allowing the mold itself to maintain a proper temperature for curing by constituting the device together with the formwork, and the registered patent No. 10-0498548-0000 is a structure And a rubber-made steam piping pipe is installed around the pipe, and then steam is supplied to the pipe through a pipe to keep it warm. The registered utility model 20-0189871-0000 is characterized in that a heat- It is characterized in that the cement mortar is heated by winding and heating to supply power.

However, as described above, the cement mortar thermal insulation method using a luminaire has a problem in that the work space is large, the effect is low in the open work space and the reliability is low, and the mold with the heat insulation device easily breaks the heat insulation / Since there is a low contrast effect and the hot insulation method using steam requires temporary provision of the steam pipe, there is a problem that the unnecessary labor cost and material cost increase. In the hot insulation method using hot wire, The work is inconvenient and troublesome, and there is a problem that the cover of the hot wire is peeled off, resulting in electric shock or fire due to a short circuit or a short circuit.

The present invention has been made to solve the above problems, and it is an object of the present invention to provide a cement mortar composition which is simple and easy to construct, can reduce cost, can control temperature, The present invention provides a cement mortar curing method and a thermal curing apparatus which can effectively and cure a mortar cement mortar in the winter season by effectively keeping the mortar freezing.

The solution means of the cement mortar thermal insulation curing device according to the present invention comprises:

A hanger including a fixing member and having a shape corresponding to an upper surface of the reinforcing bar,

And the hot wire coated with the insulating material may be embodied by a hot wire curtain fixed to the fixing member in a zigzag manner.

In the heat ray curtain of the present invention, the heat ray can be arranged at regular intervals by the binding members.

The present invention may further comprise a temperature controller capable of regulating the temperature of the hot wire.

The solution of the cement mortar thermal curing method according to the present invention comprises:

Placing a reinforcing bar to cure the concrete structure;

Fixing a hot wire curtain to a hanger in a zigzag form on a specific surface or each surface of the hanger with a height and a width corresponding to the height and width of the reinforcing bar;

Lifting the hanger to the upper part of the reinforcing steel bar using the hanger ring, aligning the heating wire curtain to surround the periphery of the reinforcing steel bar, and lowering the hanger;

And a step of cementing the cement mortar for a predetermined time to cure the cement mortar by supplying power to the hot wire after inserting the cement mortar into the die.

In the present invention, the hot-wire curtain made of hot wire is fixed to the hanger and the lower part of the reinforcing bar is lowered to the surface of the reinforcing steel before the formwork is installed, so that the cement mortar can be simply and easily warmed and cured.

In the present invention, the hot wire made of an insulating material is installed around the reinforcing bar at one time, so that the operation is quick and quick.

Since the hanger with the hot-wire curtain can be manufactured from the outside and brought into the worksite, the work can be shortened, so that the work time can be greatly shortened, so that not only the labor cost but also the electric shock It is effective to prevent various safety accidents.

1 is a plan view of a cement mortar thermal insulation curing apparatus according to the present invention,
2 (a) is a sectional view taken along the line AA in Fig. 1,
2 (b) and 2 (c) are a hanger top view of the cement mortar thermal insulation curing device according to the present invention,
3 is a perspective view illustrating a cement mortar thermal insulation curing apparatus according to the present invention,
4 and 5 are perspective views illustrating an installation example of the curing apparatus shown in Fig. 3,
Fig. 6 is a plan view illustrating the hanger of the present invention installed so as to cross a hot line.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a cement mortar thermal insulation curing method and a thermal insulation film device according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view illustrating an embodiment of a cement mortar thermal insulation curing apparatus 10 according to the present invention. The concrete curing apparatus 10 of the present invention comprises a heat ray curtain A hanger 100 to which the heating wire curtain 200a is fixed and a temperature controller (not shown) capable of controlling the temperature of the heating wire 200. [

2 (a), the heating wire 200 is composed of a carbon 203 which is internally heated by a power source and a covering layer 202 which is formed by injection molding around the carbon 203 by an epoxy resin have.

Epoxy resin, unlike other thermosetting resins, does not harden by heating or pressurization by epoxy alone, reaction shrinkage is very small, volatile substances are not generated, and mechanical properties and electrical insulation are excellent. It is possible to ensure insulation and watertightness.

When power is applied to the heat ray 200, heat is generated in the carbon 203, and the temperature of the heat ray can be selectively controlled by a temperature controller.

The heating wire 200 is made of an insulating material as shown in FIGS. 1 and 3, and can be bound to the heating wire curtain 200a through a coupling member 201 of a wheel-like material.

The heating wire 200 of the heating wire curtain 200a is not cut as shown in FIG. 1 but is fixed to the fixing member 111 (see FIG. 3) so that a single hot wire is staggered on each side of the hanger 100 To the hanger. 4, the height H of the heating wire curtain 200a is set to a height slightly lower than the height of the reinforcing steel wire 310 and the width W of the heating wire curtain 200a is set to a height It is better to make the width slightly narrower than the width. That is, the height H and the width W of the wire curtain 200a are adjusted according to the height and the width of the reinforcing bar 310 to hang the wire 200 in a zigzag form on the hanger 100, .

3 is a perspective view illustrating a cement mortar thermal insulation curing apparatus 10 according to the present invention. As shown in Figs. 2 (b) and 2 (c), the hanger 100 has a hanger A hanger ring 110 capable of lifting the hanger 100 can be attached to each corner portion. However, in FIG. 3, the hanger ring 110 is illustrated as being attached to the center of the hanger 100.

In addition, the hanger 100 may be provided with a fixing member 111 for fixing the heat ray 200. The fixing member 111 can be employed as long as it can easily fix the heat ray 200 to the hanger 100 regardless of its structure or form.

The plurality of hanger rings 110 are for allowing the hanger 100 to enter a stable posture when the width W of the heat wire curtain 200a is wide and the height H is high.

Therefore, when the hanger 100 is lifted by using the hanger ring 110, the heat ray curtain 200a is stretched by gravity. When the stretched hot wire curtain 200a is lowered, the hot wire curtain 200a can be vertically positioned around the longitudinally extending reinforcing bar 310. [ At this time, the height H of the hot wire curtain 200a provided on each side of the hanger 100 may vary depending on the height of each side of the reinforcing steel bar 310.

Fig. 2 (b) is a plan view of a narrow hanger for installing a narrow-width type hot-wire curtain for constructing a relatively narrow concrete structure such as a column, Fig. 2 (c) 2 (b) and 2 (c) are different in size and shape, but the configuration is basically the same as that of the hanger of the present invention. same.

The shape and the shape of the hanger 100 can be changed according to the shape and the shape of the reinforcing bar 310 as shown in 2 (b), 2 (c), 4 and 5, (100) is embedded in the cement mortar when poured into it, it is advisable to adjust the thickness and thickness of the hanger so as not to deteriorate the structural strength of the concrete structure.

As shown in FIG. 6, the heat ray 200 may be arranged to cross the upper surface of the hanger 100 to form the heat ray curtain 200a. In the case where the hot wire is installed on the upper surface of the hanger so as to cross the hot wire, in order to heat the surface of the hanger 310 when the flat surface of the hanger 310 is large.

Therefore, it is possible for the manufacturer to appropriately select the hot wire 200 by arranging the hot wire 200 on the upper surface of the hanger 100 without intersecting or crossing the hot wire 200 according to the plane of the steel wire 310.

The cement mortar thermal insulation curing apparatus 10 of the present invention can be brought into a work site (building site) in a state where a hot wire curtain is fixed to a hanger as shown in FIG.

At this time, the hanger (100) brought into the work site can roll the hot wire curtain (200a) in a round shape. In this case, it is not only possible to omit the work of forming a curtain of a hot wire in a complicated and disorderly work site, but also to directly install a curtain of a heat curtain on the reinforcement.

Hereinafter, the cement mortar thermal curing method according to the present invention will be described.

In the method of the present invention,

Placing reinforcing bars to cure the concrete structure according to the design;

Lifting the hanger 100 to the upper portion of the reinforcement bar 310 and lowering the hanger 100 so that the hot wire curtain 200a surrounds the periphery of the reinforcing bar 310;

The mold 300 is connected to the periphery of the reinforcing bar 310 and the cement mortar is poured into the mold 300 and power is supplied to the heat wire 200 to cure the cement mortar for a predetermined time to cure .

After the concrete has been cured, the mold 300 is removed.

In the cement mortar curing method according to the present invention, when the cement mortar is cured, the heat ray curtain 200a is buried in the concrete structure, and the heat ray exposed to the outside of the concrete structure is cut and removed.

As described above, according to the present invention, in order to construct a concrete building in the winter season, before fixing the form to the outside of the reinforcing bar, the heating wire curtain is lowered from the upper part of the reinforcing bar to place the heating wire on the surface of the reinforcing bar, The cement mortar can be cured by adjusting the temperature to a suitable temperature in consideration of the temperature to prevent freezing of the cement mortar placed in the mold.

Therefore, the present invention is easier and simpler in construction than the above-described conventional techniques, and can secure reliability against the construction effect, and can cure the concrete building safely in the winter without causing leakage or fire.

The terms defined in the present invention should be construed in the meaning of technical function to realize the solution of the name of the main constitution and not in the dictionary meaning of the term. While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the inventive concept. Is included in the scope of the claims defined below and in the true meaning of the technical idea intended by the present inventor.

10: Curing device 100: Hanger
110: hanger ring 111: fixing member
200: heat line 200a: heat line curtain
201: binding member 202: insulating cover layer
203: carbon 300: mold
310:

Claims (3)

In the cement mortar thermal curing method,
Placing reinforcing bars to cure the concrete structure according to the design;
Fixing a hot wire curtain to a hanger in a zigzag form on a specific surface or each surface of the hanger with a height and a width corresponding to the height and width of the reinforcing bar;
The hanger 100 is lifted up to the upper portion of the backing bar 310 by using the hanger loop 110 so that the hot wire curtain 200a aligns around the circumference of the backing bar 310, And placing a heating wire curtain (200a) around the reinforcing bar (310)
The mold 300 is connected to the periphery of the reinforcing bar 310 and the cement mortar is poured into the mold 300 and power is supplied to the heat wire 200 to cure and cure the cement mortar Cement mortar curing method. In the cement mortar thermal curing apparatus,
A hanger (100) comprising a plurality of fixing members and a hanger ring provided at the center, the hanger (100) having a shape corresponding to the plane of the reinforcing bars,
And a heat ray curtain (200a) secured to the carbon and the carbon so as to be staggered in a zigzag form through the hanger. 3. The method of claim 2,
Wherein the heating wire curtains are bound together by a bundling member so that heat rays are spaced apart at regular intervals.

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