KR102152763B1 - Construction method for waterproof material with thermal shield function and structure constructed by same - Google Patents

Abstract

The present invention provides a method for constructing a heat insulating and waterproofing material, which has excellent heat insulating and waterproofing performance so that energy can be saved and durability can be improved. According to the present invention, provided is the heat insulating and waterproofing method, which includes the following steps of: applying the heat insulating and waterproofing material to a surface of an object to be applied; attaching fiber sheets onto a surface of the heat insulating and waterproofing material; attaching glass fiber to a joint between the fiber sheets; and applying the heat insulating and waterproofing material onto surfaces of the fiber sheets and the glass fiber at least once.

Description

Energy-saving thermal insulation waterproofing material construction method and thermal insulation waterproofing structure {CONSTRUCTION METHOD FOR WATERPROOF MATERIAL WITH THERMAL SHIELD FUNCTION AND STRUCTURE CONSTRUCTED BY SAME}

The present invention relates to an energy-saving heat shielding waterproofing material construction method and a heat shielding waterproofing structure.

In general, the roof of a building structure is not affected by external climatic conditions, and the indoor temperature is kept constant as much as possible, and a heat shielding waterproofing construction is performed in order to have a waterproof effect.

However, the existing heat shielding waterproof construction has a low heat shielding effect, so energy utilization efficiency is not high during cooling/heating, and its strength is low, so it is easily damaged by the external environment.

Accordingly, it is expected that it can be widely applied in related fields when a technology capable of constructing a heat shielding waterproofing material having excellent energy utilization efficiency and high strength is provided.

Korean Patent Publication No. 10-2009-0022048

An object of the present invention is to provide a method of constructing a heat shielding waterproofing material with excellent heat shielding performance and waterproofing performance, thereby enabling energy saving and improved durability.

According to an aspect of the present invention, the steps of forming a first heat shielding waterproof layer by applying a heat shielding waterproofing material to a surface of a conductor; Disposing a plurality of fiber sheets adjacent to the upper surface of the heat shielding waterproof layer; Disposing glass fibers at seams between the plurality of fiber sheets; And forming a second heat shielding waterproof layer by additionally applying a heat shielding waterproofing material to the upper surface of the fiber sheet and the glass fiber at least once.

According to another aspect of the present invention, a heat-shielding waterproof layer formed of a heat-shielding waterproofing material and a fiber sheet are laminated on a conductor, and the fiber sheet is disposed adjacent to a plurality of fiber sheets, and at a seam portion between the plurality of fiber sheets. A heat shielding waterproof structure in which glass fibers are arranged is provided.

According to the present invention, there is an effect of improving heat shielding performance and durability by arranging glass fibers at seams between fiber sheets when performing heat shielding waterproofing on a conductor.

The present invention can be widely applied in the fields of architecture and civil engineering, and has an advantageous effect in particular when constructing a rooftop flooring.

1 is a cross-sectional view of a heat shielding waterproof structure of the present invention.
2 is a schematic diagram showing a form in which glass fibers are attached to the seam between the fiber sheets of the present invention.

Hereinafter, preferred embodiments of the present invention will be described. However, embodiments of the present invention may be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below.

Hereinafter, the present invention will be described with reference to FIG. 1. According to an aspect of the present invention, there is provided a heat-shielding waterproofing construction method on the surface of a building, in particular, a heat-shielding waterproofing construction method applicable to rooftop flooring construction.

The heat shielding waterproof construction method of the present invention includes a pretreatment step of first applying a primer primer to the surface of the conductor 100 and then filling the cracked or recessed areas on the surface of the conductor with urethane putty or mortar. do.

The primer primer may contain SiO ₂ as an inorganic aqueous primer primer. However, depending on the site conditions, an oil-based primer may be used. The primer treatment may be performed one or more times depending on the surface condition of the surface of the conductor.

In addition, depending on the degree of crack occurrence on the surface of the conductor, urethane putty can be injected by injection, or the surface where the crack occurs can be cut into a V shape and then filled with urethane putty.

By performing the pretreatment step as described above, the surface of the conductor can be smoothly finished to facilitate subsequent heat shielding and waterproofing construction.

Next, the first heat shielding waterproof layer 200 is formed by applying a heat shielding waterproofing material on the surface of the pretreated conductor. In the present invention, the heat shielding waterproofing material is not particularly limited, but may include a polymer resin, titanium oxide (TiO ₂ ), calcium carbonate, an aluminum silicate compound, and other additives.

In the present invention, the polymer resin is for imparting adhesion to the surface of the conductor, and vinyl acetate emulsion resin, ethylenic vinyl acetate copolymer emulsion resin, acrylic copolymer emulsion resin, styrene copolymer emulsion resin, polyurethane emulsion resin, etc. can be used. , Preferably, an acrylic copolymer emulsion resin can be used. The polymer resin may be included in an amount of 25 to 45% by weight based on the total weight of the heat shielding waterproof material, and imparts good adhesiveness within the above range.

Titanium oxide (TiO ₂ ) is a component for improving the whiteness of the heat shielding waterproofing material. The titanium oxide may be included in an amount of 10 to 20% by weight based on the total weight of the heat shielding waterproofing material, and if the content of titanium oxide is less than 10% by weight, the whiteness is too low, so that the heat shielding effect may be reduced. On the other hand, if the content of titanium oxide exceeds 20% by weight, the surface strength of the heat shielding waterproof layer may decrease, which is not preferable.

Calcium carbonate serves as a filler in the heat shielding waterproofing material, and may be included in an amount of 10 to 15% by weight based on the total weight of the heat shielding waterproofing material. If the calcium carbonate content is less than 10% by weight, it is difficult to exhibit the function as a filler, and if it exceeds 15% by weight, the elongation of the heat shielding waterproofing material is lowered, so that the heat shielding waterproof layer may be torn or lifted by the external environment.

In addition, the aluminum silicate compound has a heat shielding function to block external heat, and may be included in 15 to 25% by weight based on the total weight of the heat shielding waterproofing material. It has a desirable heat shielding performance within the above range, it is possible to manufacture a heat shielding waterproofing material excellent in coating properties.

In addition to the above-described components, any component that can be generally included according to the use of the heat shielding waterproofing material may be used without limitation.

Next, a plurality of fiber sheets 300 are disposed adjacent to the upper surface of the heat shielding waterproof material. The fiber sheet may be a fiber having a web structure formed by binding natural fibers or synthetic fibers through mechanical, chemical or thermal treatment to form a fabric, and may be manufactured by a multi-bonding method. In consideration of the strength and durability of the heat shielding waterproof structure, the thickness of the fiber sheet is preferably 1.8 to 2.2 mm.

When the area of the conductor to be constructed for thermal insulation waterproofing is larger than the area of the fiber sheet, a plurality of fiber sheets must be arranged. According to the present invention, it is possible to improve the durability of the heat shielding waterproof layer by disposing the glass fibers 400 at the seams between the fiber sheets.

In the present invention, the glass fiber may have a thickness of 0.2 to 0.25 mm (KS K ISO 5084) and a mass of 55 to 65 g/m ² (KS K 0514). In addition, the warp and weft yarns of the glass fiber have a tensile strength of 600 to 700N/5cm (KS K 0521) and a tensile elongation of 2 to 3% (KS K 0521), and the heating dimensional change rate is -0.5 to 0.5 for both warp and weft yarns. % (KS F 3211, 168 hours at 80°C) is preferable. When the physical properties of the glass fiber are within the above-described range, it has strength and durability suitable for heat shielding waterproofing.

Referring to FIG. 2, the glass fibers may be disposed up to b of FIG. 2 based on the seam line between the fiber sheets (a of FIG. 2), and preferably, the spacing of the glass fibers (a and b of FIGS. Spacing) may be 3cm or more. If the spacing of the glass fibers is less than 3 cm, the durability is deteriorated and cracks may occur in the seams of the fiber sheet over time. On the other hand, the upper limit of the arrangement interval of the glass fibers is not particularly limited, but may be 4 cm or less in consideration of the heat shielding waterproof construction cost.

In the present invention, glass fibers may be used alone, or glass fibers and acrylic compounds may be mixed and used. When a glass fiber and an acrylic compound are mixed and used, 75 to 85% by weight of glass fibers and 15 to 25% by weight of an acrylic compound may be included based on the total weight of the mixture.

In addition, it is possible to increase the adhesion between the glass fiber and the fiber sheet by pre-treating it by applying a primer on the fiber sheet before placing the glass fiber.

After the glass sheet is disposed, it is preferable to additionally apply a heat-shielding waterproofing material to the upper surface of the fiber sheet and the glass fiber one or more times to form the second heat-shielding waterproofing layer 500, and at this time, the heat-shielding waterproofing material constitutes the first heat-shielding waterproofing layer. The same thing as the heat shielding waterproofing material can be used.

In addition, according to another aspect of the present invention, there is provided a heat shielding waterproofing structure in which a heat shielding waterproofing material and a fiber sheet are laminated on a conductor, and glass fibers are disposed at a seam between the fiber sheets, and the heat shielding waterproofing structure is It has the same technical characteristics as the waterproof construction method.

According to the heat shielding waterproof construction method and the heat shielding waterproof structure according to the present invention, by introducing glass fibers into the seam portion of the fiber sheet, not only the heat shielding effect is excellent, but also the durability is improved. have.

Example

Hereinafter, an embodiment of the present invention will be described in detail. The following examples are only for understanding the present invention, and do not limit the present invention.

1. Heat shielding waterproof construction method

(1) Examples

The contaminants and excitation areas on the surface of the conductor to be used for heat shielding waterproofing were removed, and the surface of the conductor was first surface treated with a grinder. After applying an inorganic aqueous primer or oil primer to the first surface-treated surface, the cracks and depressions were subjected to secondary surface treatment using urethane putty or mortar.

After applying the heat-shielding waterproofing material on the second surface-treated surface, the fiber sheets were evenly pressed with a roller, and glass fibers were placed at 3.5cm intervals based on the seam line at the seam between the fiber sheets while applying an aqueous primer. . The glass fibers were used having a thickness of 0.22 mm and a mass of 60.8 g/m ² .

Thereafter, a heat shielding waterproofing material was applied and dried, and a top coating material was applied.

(2) Comparative Example 1

A heat shielding waterproof layer was constructed in the same manner as in the Example, except that glass fibers were not disposed at the seam between the fiber sheets.

(3) Comparative Example 2

A heat shielding waterproof layer was constructed in the same manner as in the Example, except that glass fibers were disposed at 2.5cm intervals at the joints between the fiber sheets.

2. Durability evaluation after heat shielding waterproof construction

After the heat-shielding waterproof construction, the occurrence of cracks in the fiber sheet and glass fiber was observed. As in Comparative Example 1, when the glass fibers were not disposed at the seam of the fiber sheet, it was confirmed that cracks occurred at the seam of the fiber sheet after 730 days had elapsed. As in Comparative Example 2, when the glass fibers were arranged at 2.5cm intervals at the seam between the fiber sheets, it was confirmed that cracks occurred at the seam of the fiber sheet after 1095 days had elapsed.

On the other hand, when the glass fibers were arranged at 3.5cm intervals at the seam portion of the fiber sheet as in Example, no cracks occurred even after 1460 days had elapsed.

From the above results, it can be seen that when the glass fibers are not disposed or are disposed at intervals of 2.5 cm, the strength is insufficient and durability is reduced.

100 conductor
200 thermal waterproof layer
300 fiber sheet
400 fiberglass

Claims (4)

Forming a first heat-shielding waterproof layer by applying a heat-shielding waterproofing material to the surface of the conductor;
Disposing a plurality of fiber sheets adjacent to the upper surface of the heat shielding waterproof layer;
Disposing glass fibers at seams between the plurality of fiber sheets; And
Forming a second heat-shielding waterproof layer by additionally applying a heat-shielding waterproofing material to the upper surface of the fiber sheet and the glass fiber at least once
Including,
The glass fibers are disposed to cover each fiber sheet with a width of 3 cm to 4 cm based on the seam line between the fiber sheets,
The glass fiber has a thickness of 0.2 to 0.25 mm (KS K ISO 5084) and a mass per unit area of 55 to 65 g/m ² (KS K 0514),
The warp and weft yarns of the glass fiber have a tensile strength of 600 to 700N/5cm (KS K 0521), a tensile elongation of 2 to 3% (KS K 0521), and a heating dimensional change rate of -0.5 to 0.5% (KS F 3211, 80 The heat shielding waterproof construction method having 168 hours at ℃).
The method of claim 1,
When the conductor has a crack or depression, before placing the fiber sheet, a thermal insulation waterproofing construction method further comprising the step of filling the crack or depression of the conductor with urethane putty or mortar .
The method of claim 1,
The thermal insulation waterproofing material is based on the total weight of the thermal insulation waterproofing material.
A heat shielding waterproof construction method comprising 25 to 45% by weight of a polymer resin, 10 to 20% by weight of titanium oxide (TiO ₂ ), 10 to 15% by weight of calcium carbonate, and 15 to 25% by weight of an aluminum silicate compound.
A heat shielding waterproof layer formed of a heat shielding waterproofing material and a fiber sheet are laminated on the conductor,
In the fiber sheet, a plurality of fiber sheets are disposed adjacent to each other, and a glass fiber is disposed at a seam between the plurality of fiber sheets,
The glass fibers are disposed to cover each fiber sheet with a width of 3 cm to 4 cm based on the seam line between the fiber sheets,
The glass fiber has a thickness of 0.2 to 0.25 mm (KS K ISO 5084) and a mass per unit area of 55 to 65 g/m ² (KS K 0514),
The warp and weft yarns of the glass fiber have a tensile strength of 600 to 700N/5cm (KS K 0521), a tensile elongation of 2 to 3% (KS K 0521), and a heating dimensional change rate of -0.5 to 0.5% (KS F 3211, 80 168 hours at ℃) to the heat shielding waterproof structure.

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