CN203449453U - Concrete moisture preserving and heat accumulation maintenance membrane - Google Patents

Abstract

The utility model provides a concrete moisture-retaining, heat-storing and curing membrane, which belongs to the technical field of construction engineering. It solves the problems of cumbersome film curing process and high cost in the prior art. The maintenance film of the utility model includes a polymer film layer, and one surface of the polymer film layer is divided into a region 1 and a region 2, and a double-sided adhesive strip is bonded along the edge direction in the region 1; the region 2 is respectively from bottom to top In order to bond the adhesive layer and the high-power water-absorbing resin layer, the polymer film layer and the high-power water-absorbing resin layer are bonded into one body through the bonding glue layer. In the utility model, a double-sided adhesive strip is bonded in the region one of the polymer film layer, and the adjacent maintenance films are bonded by the double-sided adhesive strip, so that the operation is simple, economical and practical.

Description

A concrete moisturizing heat storage curing film

technical field

The utility model relates to the technical field of construction engineering, in particular to a concrete moisturizing heat storage maintenance film.

Background technique

In recent years, high-performance concrete characterized by low water-binder ratio and large amount of mineral admixtures (such as fly ash and slag powder) has been widely used in various civil engineering. From the results of indoor experiments, the long-term performance of this type of concrete will be much better than that of ordinary concrete in the past, but in specific projects, phenomena such as cracking and premature corrosion of steel bars have been found. are not effectively maintained. The proportion of fly ash participating in the hydration reaction in the early stage is very low, and the slag powder itself will cause excessive shrinkage, which makes the concrete mixed with fly ash and slag powder require better maintenance than conventional concrete, especially for young Moisturizing and steaming maintenance during the age is very important.

What generally adopt at present is still grass curtain, geotextile, conventional plastic film, for example: CN203045960U discloses a kind of concrete curing device, and it comprises surface layer, water-absorbing layer and protective layer, and protective layer is exactly the geotextile that adopts, straw curtain Geotextiles and geotextiles require continuous manual watering, and most of the water is evaporated, which not only causes a waste of resources but also takes up a certain amount of manpower; conventional plastic films are often sprinkled with water first and then covered with plastic films, although plastic films hinder It can ensure the escape of water, but it cannot guarantee the uniform distribution of water, especially on the top and facade of structures with large transverse slopes, the water will gather in the lower places.

In recent years, a kind of curing film with high-power water-absorbent resin particles has appeared on the market. After the top surface of the structure is plastered or the facade is removed, the surface is covered with water. However, the particle size of high-power water-absorbent resin is too large, which is limited by cost. , the amount of resin particles sprinkled per unit area is not large, although the water demand for concrete curing can be maintained, the water distribution is still not very uniform. At the same time, a sand bar needs to be pressed between two adjacent curing films, which increases the process of spreading sand and cleaning sand. Therefore, it is necessary to provide a concrete curing membrane with simple structure and low cost.

Utility model content

In order to solve the above-mentioned problems in the prior art, the utility model proposes a concrete moisture-retaining and heat-storing curing membrane, which has a simple structure, is economical and practical.

The technical scheme of the utility model comprises:

A concrete moisture-retaining, heat-storing and curing membrane, comprising a polymer film layer, the polymer film layer is divided into area 1 and area 2, the area 1 is located at the edge of one side of the polymer film layer, and within the area 1 A double-sided adhesive tape is bonded along the edge direction; the second area is a bonding adhesive layer and a high-power water-absorbing resin layer from bottom to top, and the polymer film layer and the high-power water-absorbing resin layer are bonded through the bonding glue layer to form a One.

Further, the above polymer film layer is polyethylene film, polyvinyl chloride film or polyester film.

The width of the above-mentioned double-sided adhesive tape is between 1cm and 3cm.

Beneficial technical effects brought by the utility model:

The utility model proposes a concrete moisture-retaining and heat-storing curing film, which is used for approximate moisture-retaining, steam-curing and curing of structures such as the top surface of structures, facade concrete, and cement-stabilized crushed stone base. There are double-sided adhesive strips, and the adjacent curing films are bonded by double-sided adhesive strips, which makes the operation simple, economical and practical.

Description of drawings

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail:

Fig. 1 is the expanded view of the maintenance film of the present invention;

Fig. 2 is the schematic diagram of the overlapping state of the curing film of the present invention;

Fig. 3 is the drawing of the maintenance film of the present utility model;

In the figure, 1. polymer film layer, 2. high-power water-absorbing resin layer, 3. double-sided adhesive tape.

Detailed ways

As shown in Fig. 1 and Fig. 3, a kind of concrete moisture-retaining and heat-storing curing film comprises a polymer film layer 1, and the polymer film layer 1 of the utility model is a polyethylene film, a polyvinyl chloride film or a polyester film, or directly adopts Plastic film, polymer film layer 1 is divided into area one and area two, and area one is positioned at the edge of polymer film layer 1 side, and the area of area one is advisable with double-sided tape 3 can be pasted completely, double-sided Adhesive strip 3 is bonded in area 1; said area 2 is the bonding adhesive layer and the high-power water-absorbent resin layer 2 from bottom to top, and the high-power water-absorbent resin layer 2 is in powder form, and its main component is acrylamide-potassium acrylate. Cross-linked copolymer, the powder dosage of high-power water-absorbent resin layer 2 is between 2-4g/m ² , the fineness of powder particles is 30-100 mesh, and the polymer film layer 1 and high-power water-absorbent resin layer 2 are bonded by adhesive layer. One.

The above-mentioned double-sided adhesive tape has a width of 1-3 cm.

The specific operation method of the utility model concrete moisturizing and heat storage maintenance film:

As shown in Figure 2, first stick the double-sided adhesive strip 3 along the edge direction on the side of the polymer film layer 1 near the edge (position 1), and then spray the adhesive on the same side of the double-sided adhesive strip 3 at the second position of the area. For gluing, spread the high-power water-absorbent resin layer 2 evenly on the surface sprayed with the adhesive glue layer to ensure that the surface of the adhesive glue layer is covered with the high-power water-absorbent resin layer 2, and finally roll up the polymer film layer 1 for later use.

For the top surface of the structure, the double-sided adhesive strip 3 is first adhered to the top surface of the adjacent polymer film layer 1, and the lap width is controlled at 5-10 cm, and then covered on the concrete surface that has just been sprinkled with water; for the structure For the facade, after the formwork is removed, the finished curing film is wound spirally around the surface of the structure from bottom to top to ensure that the double-sided adhesive strip 3 can stick the adjacent parts, and then follow the gap between the curing film and the surface of the structure from top to bottom Then pour water slowly to ensure that the curing film is close to the surface of the structure, so that the high-power water-absorbing resin layer 2 is saturated with water for concrete curing.

It should be understood that under the enlightenment of the present utility model, those skilled in the art can also make various modifications such as replacement and simple combination without departing from the protection scope of the claims of the present utility model. The scope of protection requested shall be subject to the appended claims.

Claims (3)

1. a concrete moisture retention regenerative conservation film, comprise macromolecule membranous layer, on a face of macromolecule membranous layer, divide and have Yi He region, region two, described region one is positioned at the edge of macromolecule membranous layer one side, it is characterized in that: described region one is interior is bonded with double-sided tape along edge direction; Described region two is respectively glue line and high power water-absorbing resin layer from bottom to top, and described macromolecule membranous layer and high power water-absorbing resin layer are bonded to one by glue line.

2. a kind of concrete moisture retention regenerative conservation film according to claim 1, is characterized in that: described macromolecule membranous layer is polyethylene film, polyvinyl chloride film or polyester film.

3. a kind of concrete moisture retention regenerative conservation film according to claim 1, is characterized in that: double-sided tape width is between 1～3cm.

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