JPS63247461A - Waterproof construction method of steel plate - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides waterproofing for concrete surfaces of buildings and structures.
' Concerning concrete surface waterproofing method.

[Conventional technology]

A waterproof layer is formed by coating the concrete surface with waterproof mortar, asphalt, comb, urethane, comb asphalt, etc., or by laying a sheet made of these materials. Also, in recent years, a waterproofing method has been used in which thin stainless steel sheet metal is laid on the concrete surface.

The rooftops of buildings and structures are exposed to sunlight, wind, snow, and rain, and are directly affected by changes in temperature.

As the temperature rises, the air in the concrete expands, pushing up the waterproof layer and causing it to swell? ! ,! This caused water leakage damage.

Furthermore, in cold regions, deterioration of the waterproof layer due to damage from snow accumulation appears to be a problem. As countermeasures, Fukagawa tried methods such as deaeration, FRP (laminated glass mat and polyester), and stainless steel waterproofing, but none of them were satisfactory.

[Problem that the invention seeks to solve]

The purpose of the present invention is to prevent the waterproof layer from blistering or cracking due to air, water, steam, etc. in the waterproof layer or concrete, completely prevent deterioration of the waterproof material, improve adhesive properties, and easily and reliably prevent the waterproof layer from blistering or cracking. Our goal is to provide a waterproofing method that can be used in construction.

[Means to solve all problems]

According to the present invention, a waterproof layer is formed by applying one or more flexible materials selected from rubber, resin, and asphalt to a concrete surface that requires waterproofing and/or laying a sheet track made of the above-mentioned materials. Iron plate metal paving of specified dimensions, the iron plates are fixed with nails, and the joint between the iron plates is made entirely of rubber, resin, or asphalt.
A steel plate waterproofing method is provided, which is characterized by sealing with one or more types of materials.

The flexible material used as a coating or sheet to form the waterproof layer is selected from rubber, resin, and asphalt.

NBR, EP rubber as "Koj, Ranoshi 1".

Synthetic rubber or natural rubber such as chloroglene rubber and urethane rubber, polypropylene, vinyl chloride (i↑fat).

Synthesis of epoxy wood), polyester, etc.
m, +I effect.

Examples include asphalt, rubber asphalt (a mixture of rubber and asphalt), etc. When coating, solutions or emulsions of these materials are prepared and coated to an appropriate thickness. An even better waterproof layer can be obtained by applying the sheet to the concrete surface and forming a complete waterproof layer. The thickness of the waterproof layer is preferably 0.1~
The range is 10 nm.

The iron plate used in the present invention is cut to a predetermined size, and although the size varies depending on the construction conditions, for example, 0.1 m
The size ranges from square to 2 m square, but if it is too large, it will be difficult to work, so 40 crn to 1 m square is appropriate. Also, the thickness of the iron plate is about 0.2 to 31, but 0.25 to 1.
6fi, especially in the range of 0.4 to 0.6 fi, is preferable from the viewpoint of weight and construction since it can follow the unevenness of the underlying concrete surface.

Although iron plates can be used as they are, it is preferable to use them after surface UU treatment. For example, use zinc coating or epoxy paint to prevent rust.

If necessary, the roughness of the concrete base is adjusted in advance using, for example, resin mortar, and the iron plate is filled in so as not to create bridges or cavities. You can also apply emulsion or latex as a primer, or use a film,
You can also cover it with sheets, etc. For laying the iron plate, it is better for the sheet or coating material to have tack (adhesiveness), so tacky materials (for example, rubber asphalt) are preferred.

As a method of laying iron plates, for example, the iron plates are laid so that some parts overlap each other, and the overlapping parts are fixed with nails, usually concrete nails.

Preferably, the four corners of the iron plate are cut by about 2 an inch, for example, and the pieces are butted together in a checkerboard pattern. Next, an iron plate with the four corners cut in the same way is laid on top of the checkerboard pattern, and the iron plate is butted against the iron plate below. Overlap the edges of the upper iron plate. Secure by driving nails into the four corners and overlapping edges.

As another method, a presser iron plate (joint plate) is stacked on top of the gap between the iron plates t of 0.5 to 10 m, and nails are driven into the joint plate to fix it.

Still another method is to form iron plates like a lunch box, overlap the brim portions of the plates, and secure them by driving nails into the overlapped portions.

In the present invention, rubber is applied to the concrete surface.

An iron plate of a predetermined size is laid on the first waterproof layer made of a flexible material selected from resin and asphalt, and the iron plate is fixed with nails. A second waterproof layer made of the above-mentioned flexible material can also be formed thereon. Furthermore, a second iron plate may be entirely laid on the second waterproof layer, and a third flexible material waterproof layer 16'r shade may be formed thereon.

The joint between the steel plates shall be sealed with one or more flexible materials selected from rubber, resin, and asphalt (including rubber asphalt).1 This sealing may be performed only on the joint, or Alternatively, the entire surface of the iron plate may be covered. Alternatively, in addition to sealing the polished portion, the entire surface of the waterproof layer can be finished (often colored) with flexible coating τ+ and/or other commonly used finishing materials. In the waterproofing method of the present invention, for surface finishing, it is preferable to spray or apply a non-colored coating liquid in which a filler, aggregate, etc. are mixed into an acrylic water-based emulsion or a solvent system. The outermost surface can be finished by selecting any suitable finishing method depending on the purpose, such as making it a simple waterproof layer, making it walkable, or using it as a playground.

〔Effect of the invention〕

According to the construction method of the present invention, the expansion of air in concrete is suppressed by the iron plate and fixed nails, so the swelling force of the waterproof layer is 1. It does not cause cracks or peeling, and there is no risk of water leakage. In addition, the iron plate is durable because it can withstand snow accumulation, and the protruding corners of the iron plate.

Inner corners and accessories are protected with flexible materials! Therefore, construction is easy and there is no problem of water leakage.

Example-1 Highly concentrated rubber asphalt (product name:
JSR Hull Coat 85/Japan Latex Kako Co., Ltd. (
(Concentration 85%, Asphalt 60%, SBR 25%, Moisture 15%, Film elongation 2500%) k 1. O
kg/m2 was applied uniformly and after drying for 2 to 4 hours, the surface became tacked, so this surface was laid out by effl stamping, and the entire surface was treated with epoxy paint of 94 cr R square and 0.5 m thick to prevent rust. Four corners of iron plate k 2 cm x 2 cm
Using the pieces cut into triangles, line the cut corners together and lay them out in a checkered pattern on the surface of the rubber asphalt as shown in Figure 1.

Rubber asphalt remains tacky for 1 to 4 hours after drying, so the iron plate can be firmly attached to the base. Furthermore, apply tank coat (high concentration rubber asphalt adhesive 7 Japan Latex Kako Co., Ltd.) to the entire surface.
kg/m2) Let dry for about 1 hour.

After drying, place the corner-cut iron plates into the gaps in the checkered pattern so that the joints overlap with the previously placed iron plates. Use a continuous nail gun to drive 32 mm long galvanized nails into the four corners of the iron plate on the surface where they meet, completely fixing the iron plate.

The intermediate overlapping part of the iron plates will also be fixed with two nails with a gap of 30 m.

Compressor pressure U7X? /ff12 and nail is 1
I was able to install it in just one turn, and the steel plate was completely fixed.

After fixing, a coating of 0.5 kg/m2 of Tarakko (1.0 kg/m2) was applied to the entire surface, and after drying, a coating of 1.0 kg/m2 of rubber asphalt (JSR) was applied and dried.

The rubber asphalt layer does not swell at all even when exposed to sunlight. After drying and curing for 1 day, the surface is coated with Togco (AE).
The coating was finished by applying Tsubu Coat, an acrylic emulsion colored finishing material 7 (Japan Latex Kako Co., Ltd.) in an amount of 0.5 kIl/m2. With this waterproof sheet, there was no fear of water leakage, and no blistering occurred. Also, I was able to finish the whole thing in t-2 days.

It is an ideal construction method for waterproofing work that is subject to weather conditions, and it has also been praised as an excellent construction method in cold, rainy, and rainy climates.

Example-2 Tack coat (same as Example 1) was applied to the base concrete in an amount of 0.5 kg/m2.After drying, rubber asphalt sheet (2)/Rusheet/Japan Latex processing (a) thickness 1 area, surface adhesive layer, surface non-woven fabric finish)
The non-woven fabric side of the sheet is adhered to the base coated with tack coat, and the sheets are pasted with a 5crn lag.

After that, while completely removing the release paper from the adhesive layer, an iron plate measuring 90 crn in length and width and 0.6 cm in thickness and having a surface galvanized finish was pasted against the plate as shown in Fig. 2. The butts should be spaced about 1cm apart. After applying the tension coat, apply 0.3 J of tack coat to the entire surface.
/m2 coating and drying, then rubber asphalt (JSR Halco of Example 1) 85La - 1.0 kg/m2 was applied on the entire surface.
Apply in an amount of m.

The next day, a steel plate 1 m thick, 2 crn wide, and 1.8 m long, coated with epoxy paint to prevent rust, was fixed vertically on the water gradient by nailing nails onto the seams of the steel plate at intervals of 30 steps. The length of the side is 86cr
Similar to It, fix the joint plates and allow water to flow from the left and right sides. After that, a top coat (same as in Example 1) is applied to the entire surface to finish.

In this construction method, if the surface is finished with urethane rubber 2rm thick,
This mom can also be used as a tennis court or playground.

[Brief explanation of drawings]

FIG. 1 shows a plan view of a waterproof sheet according to an embodiment of the present invention, and FIG. 2 shows a plan view of a waterproof sheet according to another embodiment. In Figure 1, the solid line is the upper iron plate, the broken line is the lower iron plate, 1: cut part of the corner of the upper iron plate, 2: cut 8 minutes of the corner of the lower iron plate, 3: nail with washer, 4: nail, 5: Overlapping portion (edge) of the upper and lower iron plates In FIG. 2, the broken line 11 indicates the gap between the iron plates when the iron plates 10 are laid out with gaps between them. 12: Iron plate for presser foot, 13: Nail Figure 1

Claims (3)

[Claims] (1) A waterproof layer is formed by applying one or more flexible materials selected from rubber, resin, and asphalt to the concrete surface that requires waterproofing, and/or laying a sheet made of the above materials. This iron plate waterproofing method is characterized by laying iron plates of predetermined dimensions, fixing the iron plates with nails, and sealing the joints between the iron plates with one or more materials selected from rubber, resin, and asphalt. (2) The waterproofing method according to claim 1, wherein the iron plates are laid down so that some portions overlap each other, and the overlapping portions are fixed with nails. (3) The waterproofing method according to claim 1, wherein the iron plates are laid with a gap of 0.5 to 10 mm, a presser iron plate is placed on top of the gap, and a nail is driven into the presser iron plate.