JPH0436355Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] Industrial field of application The present invention relates to a structure for a shock-sound absorbing floor that is both heat-insulating and waterproof, for use in concrete slabs, etc.

Conventional technology As shown in Fig. 6, concrete slab 1
0, a cushioning material 16 such as high-density glass wool or rock wool is laid on top of the cushioning material 16, a moisture-proof sheet 17 such as a polyethylene film is laid on top of the cushioning material 16, and floating concrete 18 is poured on top of this through the mortar M and the waterproof layer 11. There was a floor structure on which mortar M and tile floor T were constructed.

Conventionally, as shown in Fig. 7, as a floor structure that combines waterproofing and impact sound buffering effects, a cushioning material 16 such as high-density glass wool or rock wool is laid on a concrete slab 10, and a waterproofing material 16 is laid on top of the concrete slab 10. There was one in which a polyethylene film 19 was laid down, waterproof protective concrete 12 was applied on top of the polyethylene film 19, and then finished with tile T.

Problems that the invention aims to solve By the way, recently, as shown in Figure 8, multi-purpose buildings or high-rise residential buildings with new forms and uses have been installed on the intermediate floors of multi-purpose facilities that can easily become sources of vibration, such as gymnastics classrooms and playgrounds. As more and more buildings are being planned, higher quality living environments are required, and as a result, new floor structures that are waterproof, insulated, and prevent floor impact noise are being required.

However, in the conventional floor structure shown in FIGS. 6 and 7, the area around the impact material 16, such as glass wool or rock wool, is not subjected to moisture-proofing and waterproofing treatment, and therefore, the impact material 16, such as glass wool or rock wool, is not coated with moisture-proofing or waterproofing during long-term use. becomes moist and loses its elasticity, resulting in not only a decline in insulation performance and buffering performance, but also changes in the thickness of the cushioning material 16, which may cause cracks in the concrete on top or damage to the moisture-proof or waterproof sheet. There were problems such as damage to the film, etc., resulting in loss of moisture-proofing or waterproofing performance.

This invention was made to solve the above-mentioned problems with conventional floor structures.
The objective is to create a floor structure using ALC plate slabs or foam concrete slabs that has all of the following properties: heat insulation performance, waterproof performance, and impact sound buffering performance, and whose performance does not deteriorate over a long period of time.

[Structure of the invention] Means for solving the problems The insulation/waterproofing impact sound-absorbing floor structure of the invention has the following features:
Glass wool or rock wool is formed into a plate shape with its fiber direction aligned in the thickness direction, and the glass wool or rock wool plate is surrounded by a tough rubber-like elastic coating mainly made of polyurethane polymer and combined with a hardening agent. A surrounding plate-shaped buffer mat is laid on the slab, and a tape made of a rubber-like elastic coating material is affixed to the joint part of the laid buffer mat, or a rubber-like elastic coating material is applied. , and is characterized by having a floor finishing material laid thereon.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 is a concrete slab on which cushioning mats 2 are laid. The concrete slab 1 may be a deck plate slab, an ALC plate slab, or a foamed concrete slab.

As is clear from FIGS. 2 and 3, the cushioning mat 2 is composed of a plate-shaped heat-insulating cushioning material 2a and a rubber-like elastic coating 2b.

The heat insulating cushioning material 2a is made of glass wool or rock wool and is formed into a plate shape with the fiber direction thereof aligned in the thickness direction. The density and thickness of the glass wool or rock wool can be freely selected depending on the required heat insulation, impact sound damping properties, compressive strain, cost, etc., but generally the thickness is 20 to 50 mm and the density is 64 to 50 mm. 120Kg/m ³ is preferred.

The heat insulating cushioning material 2a is surrounded by a tough rubber-like elastic film 2b which is mainly made of polyurethane polymer and is crosslinked at room temperature using a curing agent.

The rubber-like elastic coating 2b has the following excellent physical properties and characteristics.

<Physical properties> Mixing ratio (weight ratio) Main agent/curing agent = 10/3 Ratio Weight Main agent 1.06 Curing agent 1.37 Cured product 1.17 Viscosity Main agent 6300 cps/25℃ Curing agent 13000 During gelation 20℃ 185 (min) 40 ℃ 45 Duck free time 20℃ 260 (min) 40℃ 85 Hardness (JIS hardness) 80 Elongation (%) 180 Tensile strength (Kg/cm ² ) 73 Tear strength (Kg/cm ² ) 23 <Characteristics> Resistance Abrasion resistance, tear resistance, chemical resistance, water resistance, heat resistance, cold resistance, weather resistance, aging resistance, slip resistance,
Buffering properties.

The buffer mat 2 configured as described above is
For example, 600mm x 900mm, 900mm x 1800mm, 600mm x
Pre-formed to 1800mm and other standard dimensions.

Depending on the construction location, as shown in Fig. 4, the pine end portion 2 may be cut to the desired size using a cutting tool 3 such as a saw, and as shown in Fig. 5.
A rubber-like elastic coating agent 2b' before curing is applied to c, and the heat insulating cushioning material 2a is closed.

As shown in FIG. 1, a tape 4 made of a rubber-like elastic coating material is pasted on the joint portion of the cushioning mat 2 laid in the above manner, or the above-mentioned rubber-like elastic coating 2b' is applied. and seal. Therefore, it is not necessary to newly construct a waterproof layer, but the present invention does not preclude constructing a waterproof layer separately.

Although a waterproof layer 5 is provided under the cushioning mat 2 in FIG. 1, it is not necessarily required.

Floor finishing materials suitable for the purpose of the room, such as cinder concrete 6, tile base mortar 7, and tile floor 8, are laid on the buffer mat 2.

[Effects of the invention] 1. Since glass wool or rock wool is formed into a plate shape with its fiber direction aligned in the thickness direction, the structural strength of the cushioning mat in the thickness direction is improved.

2 A plate-shaped cushioning mat consisting of a plate-shaped glass wool or rock wool surrounded by a tough rubber-like elastic coating mainly composed of polyurethane polymer and a hardening agent was laid on the slab. Thermal insulation performance and cushioning performance do not deteriorate.

3. A tape made of a rubber-like elastic material is pasted or a rubber-like elastic material is applied to the seams of the laid cushioning mat, so that the waterproof function is perfect.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing an embodiment of the floor structure of the present invention, Fig. 2 is a partially cutaway perspective view of a cushioning mat, Fig. 3 is an explanatory diagram of the structure of the buffering mat, Figure 4 is an explanatory diagram showing the cutting of the cushioning mat;
FIG. 5 is an explanatory diagram showing a cut closing process, FIGS. 6 and 7 are cross-sectional views each showing a conventional floor structure, and FIG. 8 is an explanatory diagram of a state in which impact noise is generated in a concrete building. DESCRIPTION OF SYMBOLS 1...Concrete slab, 2...Buffer mat, 2a...Insulating cushioning material, 2b...Rubber-like elastic coating, 2b'...Rubber-like elastic coating agent, 2c...Matsu edge part, 3...Cutting Ingredients, 4...Tape, 5...
...Waterproof layer, 6... Cinder concrete, 7...
Tile base mortar, 8...Tile floor.

Claims (1)

[Scope of utility model registration request] Glass wool or rock wool is formed into a plate shape with its fiber direction aligned in the thickness direction, and the glass wool or rock wool plate is surrounded by a tough rubber-like elastic coating using a curing agent mainly composed of polyurethane polymer. A surrounding plate-shaped buffer mat is laid on the slab, and a tape made of a rubber-like elastic coating agent is applied to the joint portion of the laid buffer mat, or a rubber-like elastic coating agent is applied. A heat-insulating, waterproof, and impact sound-absorbing floor structure characterized by having a floor finishing material laid on top of it.