JPS595740B2 - Insulated waterproof structure for walking - Google Patents

Description

Detailed Description of the Invention This invention creates a walkable walking layer by fixing a rubber plate made of lightweight and strong properties using a specific composition to the surface of a heat-insulating waterproof layer formed on the base surface of a building, etc. This invention relates to an insulating and waterproof structure for walking that does not use a holding concrete layer.

BACKGROUND ART Conventionally, when a new walking layer is to be formed on the base of a building through a gas-containing heat insulating material and a waterproof layer, it is customary to pour concrete into the waterproof layer.

However, with this method, the waterproof layer is often damaged during pouring, and since the air-containing insulation material has cushioning properties and elasticity, if a protrusion hits the waterproof layer, it may cause a hole. happens.

Furthermore, the air-containing insulation layer is compressed and the gas-containing material is pushed out due to the live load (long-term load) of the holding concrete layer during pouring or afterward, resulting in a significant loss of cushioning properties and insulation performance. The drawback is that the large movement of the layer may cause cracks and at the same time the insulation and waterproof layer may rupture.

Another disadvantage is that it is difficult to detect defects in the waterproof layer because water that has permeated through the breaks in the waterproof layer moves along the joints of the insulation layer.

The structure of the present invention solves the disadvantages of the conventional method, such as damage and compression of the waterproof layer when using a concrete layer as described above, by not using a single layer of concrete as a retaining layer. A new insulating and waterproof structure for walking, in which the insulation function of the insulation layer and the waterproof function of the waterproof layer are not impaired even when walking on the insulation waterproof layer made of an air-containing insulation layer and a waterproof layer. This is what we provide.

To explain this invention more specifically, a heat insulating waterproof layer including an air-containing heat insulating material layer and a waterproof layer is formed on the base surface, and 10 to 90 parts of bituminous material is added to the surface of the heat insulating waterproof layer per 100 parts by weight of rubber.
Rubber plates formed by molding a mixture containing 5 to 40 parts by weight of a thermoplastic resin and an appropriate amount of a vulcanizing agent as essential components are arranged and fixed in parallel to form joints at desired intervals, and the joints are sealed and sealed. Filled with an elastic sealant with excellent adhesive properties,
The present invention provides an insulating and waterproof structure for walking without using a holding concrete layer, characterized in that leakage of gas-containing substances in the heat insulating material layer is prevented.

Rubbers used here include synthetic rubbers such as butyl rubber, butyl recycled rubber, ethylene-propylene-diene rubber, and vulcanized powder rubbers thereof, and bituminous materials include asphalt pitch, straight asphalt, blown asphalt, and asphalt tight. etc.,
Examples of the vulcanizing agent include sulfur, selenium, magnesium oxide, and P-quinone dioxime, and examples of the thermoplastic resin include polyethylene and polypropylene.

A mixture containing rubbers, bituminous materials, vulcanizing agents, and thermoplastic resins as essential components is preliminarily treated with vulcanization accelerators, softeners,
Compounding agents such as rubber reinforcing agents, fillers, anti-aging agents, colorants, and tackifying resins can be added.

The bituminous material is preferably added in an amount of 10 to 90 parts by weight per 100 parts by weight of rubber, from the viewpoint of flexibility and elasticity of the rubber plate and weight reduction (specific gravity 1.10 to 1.40).
If the amount is less than 10 parts by weight, the elasticity of the rubber plate will be impaired, which is not preferable.

When the thermoplastic resin is added in an amount of 5 to 40 parts by weight based on these blended parts, appropriate elasticity and cold resistance can be obtained.

A lightweight and strong rubber plate made of such a specific composition is prepared by applying an air-containing heat insulating layer of polyethylene foam, glass wool, asbestos, etc. of 15 to 35 mm on the base surface, and a waterproof or moisture-proof layer such as rubber and/or synthetic material. Using known materials such as resin polymer sheet materials, asphalt materials, waterproof coating materials, etc., waterproof layer / air-containing insulation layer, air-containing insulation layer / waterproof layer or waterproof layer (moisture-proof layer) / air-containing A gap of usually 0.1 to 3 cm between the rubber plates is created on the surface of the heat insulating waterproof layer formed by forming the heat insulating layer/waterproofing layer in this order using a bonding material such as adhesive, pressure-sensitive adhesive, or molten asphalt. Lay them in parallel and fix them to form joints.

Next, an elastic sealant that has sealing and adhesive properties and substantially maintains elastic performance for a long period of time is applied to the joint, such as an elastic sealant mainly made of butyl rubber or a rubber-asphalt sealant made of a mixture of rubber and asphalt. Construction is completed by filling.

Note that the rubber plate generally has a side of 20 to 50 cm,
Although it is formed into a rectangular shape with a thickness of 5 to 20 rrrm, it is possible to make it into an irregular shape, such as a triangular shape, and to change the walking layer surface by combining the shape of the rubber plate itself or a colored elastic sealant. can.

In addition, it is possible to make the appearance beautiful by applying paint etc. to the rubber plate in advance and coloring it, or by applying it and coloring it after construction.Furthermore, if the walking surface has a slope, it is similar to using paint. For example, a mixture of epoxy resin and silica sand can be applied to impart an anti-slip function.

Since the structure of this invention is constructed as described above, there is no damage to the waterproof layer, and the gas-containing heat insulating material layer is compressed during construction of the rubber plate, so that the gas-containing material in the heat insulating material layer is discharged. It has the characteristic of maintaining excellent cushioning and heat insulation properties.

Further, since the rubber plate is lightweight and has appropriate flexibility and elasticity, it is easy to handle and has good workability.

In addition, the joints between the rubber plates are filled with an elastic sealant, so even if the rubber plates are stretched due to loads such as walking, the sealant will absorb the stretch or Since it follows the shrinkage, it maintains the watertightness between the rubber plate and the sealant, providing excellent waterproofing effects, and during repairs, it is possible to detect individual rubber plates, making it easy to find abnormalities.
It has a feature that it can be easily corrected by simply peeling off and removing only the rubber plate and sealing material without damaging the heat insulating material layer and the waterproof layer.

Furthermore, after construction, the walking surface side is sealed with a rubber plate and an elastic sealant, and a holding concrete layer is not used. Since it is retained in the air-containing tissue without leaking out, cushioning and heat insulation properties are maintained over a long period of time.

Claims (1)

[Claims] 1. A heat insulating waterproof layer including an air-containing heat insulating material layer and a waterproof layer is formed on the base surface, and on the surface of the heat insulating and anti-icing layer, 10 to 90 parts by weight of bituminous material and 5 to 40 parts by weight of thermoplastic resin are added to 100 parts by weight of rubber. Rubber plates formed by molding a mixture containing a suitable amount of vulcanizing agent and a proper amount of vulcanizing agent as essential components are arranged and fixed in parallel to form joints at desired intervals, and the joints are filled with an elastic sealant having excellent sealing and adhesive properties. A walking insulating and waterproof structure that does not use a holding concrete layer, characterized in that leakage of gas-containing substances in the heat insulating material layer is prevented.