JPH0584346B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] Industrial Field of Application The present invention relates to a pine construction method for floor impact sound damping for both heat insulation and waterproofing in slabs such as concrete slabs.

Conventional Technology Conventionally, there have been independent construction methods such as rooftop waterproof construction methods, rooftop insulation waterproof construction methods for energy saving, floor impact noise mitigation construction methods, etc., as exemplified below.

<Waterproof construction method and insulation construction method> First, as a roof waterproof construction method, as shown in FIG.
and waterproof protective concrete 12 on top of it.
In order to waterproof the kitchen floor etc., as shown in Fig. 10, a waterproof layer 11 is laid on a concrete slab 10, and a waterproof protection concrete 12 is poured on top of the waterproof layer 11. Furthermore, finishing materials such as tile base mortar 13 and tiles 14 were applied thereon.

However, these waterproof construction methods could not be expected to provide insulation or floor impact noise mitigation effects.

In addition, in order to give the above-mentioned structure a heat insulation effect for the purpose of energy saving in the building, a foamed resin-based heat insulating material 15 is installed below or above the waterproof layer 11, as shown in Figures 11 and 12. However, although these foamed resin-based insulation materials had a great insulation effect, they were quite hard and could hardly be expected to have any effect in mitigating floor impact noise.

<Insulation construction method and floor impact noise mitigation construction method> Furthermore, as a construction method that has a greater effect of mitigating floor impact noise than conventional construction methods, as shown in FIG. There is a construction method in which a moisture-proof sheet 17 such as a polyethylene film is laid on top of the concrete, and floating concrete 18 is poured on top of the moisture-proof sheet 17.

However, glass wool or rock wool is sensitive to water, so if the cushioning material 16 is used on a site that is likely to get wet, that is, on a concrete slab that is prone to moisture permeation or condensation, the cushioning material 16 will be compacted and the insulation buffer will There were problems in that not only the moisture-reducing effect was reduced, but also the moisture-proof sheet 17 thereon was damaged, resulting in a decrease in moisture-proof function. Also,
This construction method had the problem that the structure was complicated and time consuming, leading to increased costs.

<Insulation and waterproofing combined with floor impact noise mitigation construction method> Conventionally, as a construction method that combines insulation, waterproofing, and floor impact noise mitigation effects, as shown in Fig. 14, high-density buffering material such as glass wool or rock wool is placed on the concrete slab 10. In some cases, a concrete material 16 is laid, a polyethylene film 17 is laid on it for waterproofing during construction, and a waterproof protection concrete 18 is constructed on top of it through a mortar 7 and a waterproof layer 11.

This construction method can achieve waterproofing, insulation, and floor impact sound mitigation effects in the initial stage, but over the long term, due to phenomena such as moisture permeation and condensation from the concrete slab side, the insulation layer made of buffer material 16 Consolidation occurs in the concrete 18, which is the waterproof layer, and as a result, cracks occur in the waterproof protective concrete 18, which is a waterproof layer, and there are many cases where the problem rapidly progresses, so it is no longer used much these days.

Problems to be Solved by the Invention Incidentally, as shown in Figure 15, in recent years, multi-purpose buildings such as gymnastics classrooms, playgrounds, etc. that are likely to become sources of vibration have been installed on intermediate floors, such as complex buildings or high-rise residential buildings. buildings tend to be planned, and higher quality living environments are required.
As a result, new floor construction methods that combine waterproofing, thermal insulation, and prevention of floor impact noise have been required.

The present invention was made in response to the above-mentioned demands, and its purpose is to provide waterproofing, heat insulation and To provide a pine construction method for floor impact sound buffering that is both heat insulating and waterproof and has excellent waterproof, heat insulating, and floor impact sound mitigating effects and can comprehensively alleviate floor impact noise.

[Structure of the Invention] Means for Solving the Problems The pine construction method of the present invention for floor impact sound buffering that is both heat insulating and waterproof has a heat insulating cushioning material of glass wool or rock wool with a density of 64 to 120 kg/m ³ with its fiber direction aligned. Buffer mats formed into a plate shape with their thickness aligned in the thickness direction and surrounded by a rubber-like elastic film around the plate-shaped insulating cushioning material are laid out on a slab such as a concrete slab, and the mats are arranged in a row. A rubber-like elastic coating agent is applied to the joints of the cushioning mats, or a tape made of a rubber-like elastic coating is applied to seal the joints, and waterproof protection concrete and floor finishing material are laid on top of this. do.

Embodiments Hereinafter, embodiments 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. Incidentally, 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 includes a heat insulating cushioning material 2a formed in a plate shape.
and a rubber-like elastic coating 2b surrounding the periphery.

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 aligned in the thickness direction. The high-density glass wool or rock wool can be selected freely depending on the required insulation properties, floor impact sound mitigation properties, compressive strain, and cost, but generally the plate thickness is 20 mm to 50 mm.
mm, and a density of 40Kg/m ³ to 120Kg/m ³ is suitable.

The heat insulating cushioning material 2a is surrounded by a tough rubber-like elastic coating 2b which is made of polyurethane polymer or the like as a main ingredient and is crosslinked at room temperature using a curing agent.

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

<Properties/Properties> Mixing ratio (weight ratio) Base agent/hardener = 10/8 Specific gravity base agent 1.06 Hardener 1.37 Cured product 1.17 Viscosity base agent 6300 CPS/25℃ Curing agent 13000 Gelling time 20℃ 185 (min) 40℃ 45 Tack 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> Abrasion resistance Tear resistance, chemical resistance, water resistance, heat resistance, cold resistance, weather resistance, aging resistance, slip resistance and cushioning properties.
For example, 600mm x 900mm, 900mm x 1800mm, 600mm x
Pre-formed to 1800mm and other standard dimensions.

In addition, depending on the construction site, as shown in Fig. 4, the pine is cut to the desired size using a cutting tool 3 such as a saw, and the edge part 2 of the pine is cut as shown in Fig. 5.
A rubber-like elastic film 2b' before curing is applied to c to close the heat insulating buffer 2a.

As shown in FIG. 1, tape 4 made of a rubber-like elastic film is pasted on the joints of the cushioning mats 2 laid in the above manner, or the above-mentioned rubber-like elastic film agent is applied. and seal. 1st
The figure shows an example of construction on an existing building in which a waterproof layer 5 has already been laid, but since the construction method of the present invention does not require the waterproof layer 5, the waterproof layer 5 will not be laid when constructing on a newly constructed building. . On top of the buffer mat 2, a floor finish such as cinder concrete 6, tile base mortar 7, tile floor 8, etc. is applied depending on the intended use.

FIG. 6 shows another embodiment in which a buffer mat 2 is laid on a concrete slab on the rooftop, the joints are treated with tape 4, etc., and cinder concrete 6 is poured thereon.

Figures 7 and 8 show a kitchen and a rooftop, respectively, where a waterproof layer 5 is laid under the buffer mat 2 instead of applying tape 4 or other joint treatment to the joints of the buffer mat 2. This is a reference example.

The construction method of the present invention can be applied to the following floor construction methods.

(1) The children's play area on the roof of the building has a waterproof, vibration-proof, and insulated floor similar to that of a gymnasium.

(2) Waterproof, anti-vibration, and heat-insulating floors for gardens and outdoor walkways in built-up housing complexes.

(3) Waterproof, vibration-proof, and heat-insulating floors for top restaurant kitchens in hotels, department stores, etc.

(4) Waterproof, vibration-proof, and heat-insulating floors for air conditioning equipment rooms installed on the top and middle floors of hotels, department stores, multi-tenant buildings, etc.

(5) Waterproof, anti-vibration, and heat-insulating floors for multi-purpose rooms, gardens, etc. in mid-rise high-rise residential buildings.

(6) Waterproofing, vibration-proofing, and
Insulated floor.

(7) Waterproof, anti-vibration, and heat-insulating floors for swimming pools, shower rooms, etc. in sports facility buildings.

(8) Waterproof, anti-vibration, and heat-insulating floors for public baths in tourist hotels, playgrounds, etc.

[Effects of the invention] (1) A rubber-like elastic coating agent is applied to the joints of the cushioning mats laid out in a row, or a tape of the coating agent is applied to seal the joints, so this method is particularly useful when applied to newly constructed buildings. Since there is no need to install a waterproof layer, materials can be saved.

(2) Construction work can be done easily and quickly.

(3) Since the fiber direction of the heat insulating cushioning material is aligned in the thickness direction and is configured in a plate shape, there is no problem caused by compaction.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing an embodiment of the construction method of the present invention, Fig. 2 is a partially cutaway perspective view of a pine, Fig. 3 is an explanatory diagram of the structure of the pine, and Fig. 4 is a cutaway of the pine. FIG. 5 is an explanatory diagram showing a cut closure process, FIG. 6 is a sectional view showing another embodiment, FIGS. 7 and 8 are sectional views showing a reference example, and FIGS. FIG. 14 is a sectional view showing a conventional slab treatment construction method, and FIG. 15 is an explanatory diagram of an impact sound generation state 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 portion, 3... Cutting tool, 4...Tape, 5
...Waterproof layer, 6...Cinder concrete, 7...
...Tile base mortar, 8...Tile floor.

Claims (1)

[Claims] 1. A glass wool or rock wool insulation cushioning material with a density of 64 to 120 kg/ ^m3 is formed into a plate shape with the fiber direction aligned in the thickness direction, and a rubber-like elastic material coating is applied around the plate-shaped insulation cushioning material. Buffer mats surrounded by a rubber mat are laid out on a slab such as a concrete slab, and a rubber-like elastic coating agent is applied to the joints of the laid-out buffer mats, or a tape made of a rubber-like elastic coating is affixed. A pine construction method for floor impact sound buffering that is both heat insulating and waterproof, and is characterized in that it is sealed and then a waterproof protection concrete and floor finishing material are laid on top of it.