CN201165718Y - A composite floor slab for sound insulation and heat insulation - Google Patents

Abstract

The utility model discloses a sound-insulating and heat-insulating composite floor, which comprises: a metal plate layer, a rock wool plate layer, a waterproof layer, a stress dispersion layer and a concrete layer, the metal plate layer, the rock wool plate layer, the waterproof Layer, stress distribution layer and concrete layer are layered together in sequence. The utility model has the following advantages: 1. The performance index of the product of the utility model: air sound insulation ≮65dB; impact sound pressure level<55dB; thermal conductivity ≯0.3W/m·K, so it has good sound insulation and heat insulation effects 2. The utility model effectively eliminates or prevents the possible interlayer stress by setting the stress dispersion layer, and ensures the stability of the floor performance.

Description

A composite floor slab for sound insulation and heat insulation

technical field

The utility model relates to a sound-insulation and heat-insulation composite building floor.

Background technique

In recent years, the average annual completed area of housing construction in the country is about 1 billion square meters, most of which are cast-in-place solid concrete floors. The cast-in-place solid concrete floor slab not only consumes a lot of materials, but also has poor thermal insulation and sound insulation performance. One of the most complained about and complained about residential properties by residents. The resulting contradictions are increasing day by day, which has become a social concern.

Floor sound transmission belongs to vibration sound transmission, mainly because the floor generates impact vibration sound, which propagates along the steel connection surface of the building structure, and finally the vibration structure radiates to the receiving space to form air sound, which is transmitted to the receiver. There are three measures for its sound insulation method: one is to weaken the vibration caused by the vibration source hitting the floor, but it is difficult to be generally applicable in practice. The second is to block the airborne sound radiated from the vibrating structure to the receiving space. This is usually solved by making a sound-proof ceiling under the floor, and the ceiling must be closed and elastically connected to the floor. It is not popular in terms of cost and occupied space, and Soundproofing is limited. The third is to block the transmission of vibration in the floor structure, which is what we call the floating floor. It is to lay a layer of vibration-damping and sound-insulating material on the constructed floor, and then make a cushion and decoration on it. noodle. This kind of elastic vibration-damping and sound-insulating layer between the base layer of the floor and the ground surface layer can reduce the vibration of the impact vibration generated by the ground surface layer, reduce the noise radiated from the base floor to the downstairs, and improve the impact sound insulation performance of the floor The purpose is now used in engineering. But its construction is all carried out on site, with many procedures, long cycle and poor site environment, which is not suitable for modern construction requirements.

In addition, as more and more buildings adopt air conditioning and heating, the heat insulation requirements for floors are also getting higher and higher. However, the existing floor slabs in our country basically do not consider the heat insulation performance.

Utility model content

The technical problem to be solved by the utility model is to provide a sound-insulation and heat-insulation composite floor, which has good sound and heat insulation properties.

In order to solve the above problems, the utility model provides a sound-insulation and heat-insulation composite floor including: a metal plate layer, a rock wool plate layer, a waterproof layer, a stress dispersion layer and a concrete layer, the metal plate layer, rock wool plate layer, The waterproof layer, the stress dispersion layer and the concrete layer are layered together sequentially.

Preferably, the metal layer is a deep rib profiled steel plate or a shallow rib profiled steel plate.

Preferably, the rock wool board layer is compression-resistant high-density rock wool board, structural rock wool, granular rock wool, structural glass surface, molded polyphenylene, extruded polystyrene or polyurethane.

Preferably, the waterproof layer is polyethylene polypropylene fiber waterproof material, polyester (FS2) waterproof material, polyethylene flexible geomembrane or modified asphalt SBS and the like.

Preferably, the stress dispersion layer is a galvanized steel wire mesh or a ribbed metal mesh.

Preferably, a veneer layer is provided between the rock wool board layer and the waterproof layer, and the veneer layer is bonded to the rock wool board layer by an adhesive.

Preferably, the veneer material selected for the veneer layer is kraft paper or kraft paper compounded with aluminum foil; the adhesive is one-component polyurethane glue or two-component polyurethane glue.

The utility model has the following advantages:

1. The performance indicators of the utility model product: air sound insulation ≮65dB; impact sound pressure level<55dB; thermal conductivity ≯0.3W/m·K, so it has good sound insulation and heat insulation effects;

2. The utility model effectively eliminates or prevents the possible interlayer stress by setting the stress dispersion layer, and ensures the stability of the performance of the floor slab.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

As shown in Figure 1, the utility model comprises: metal plate layer 5, rock wool plate layer 4, waterproof layer 3, stress dispersion layer 2 and concrete layer 1, metal plate layer 5, rock wool plate layer 4, waterproof layer 3, The stress dispersion layer 2 and the concrete layer 1 are stacked together in sequence.

The metal plate layer 5 is a galvanized profiled steel plate, of course, it can also be a color steel profiled steel plate. The thickness of the steel plate can be 0.8-1.2 mm, the width is 1000-1200 mm, the effective width after forming is 688 mm-755 mm, and the slope height is 75 mm. The preferred steel plate thickness of the utility model is 1.0 mm, and the width is 1000 mm. The effective width after forming is 688 mm, and the slope height is 75 mm.

The rock wool board layer 4 is high-density rock wool board, structural rock wool, granular rock wool, structural glass surface, molded polyphenylene, extruded polystyrene or polyurethane.

The waterproof material used in the waterproof layer 3 includes polyethylene polypropylene fiber waterproof material, polyester (FS2) waterproof material, polyethylene flexible geomembrane, modified asphalt SBS, and the like.

The stress dispersion layer 2 is a galvanized steel wire mesh or a ribbed metal mesh. Through the dispersing effect of the stress dispersing layer 2, the load applied by the external force on the unit area is reduced, so as to protect the rock wool products. And because the multi-layer material compound that the utility model adopts, the performance of various materials (as expansion coefficient etc.) difference is very big, if can't effectively eliminate and prevent the stress between the layers that may produce, then may make a certain part of the product Layer (such as waterproof layer 3) is destroyed and the performance of the utility model is reduced or the life-span is shortened. Therefore, through the waterproof layer 3, the adhesive and the stress dispersion layer 2, the possible interlayer stress can be effectively eliminated or prevented, ensuring the stability of the performance of the floor slab.

In addition, a veneer layer is arranged between the rock wool board layer 4 and the waterproof layer 3, and the veneer layer is bonded to the rock wool half layer 4 by an adhesive. The veneer material selected for the veneer layer is kraft paper or kraft paper compounded with aluminum foil; the adhesive is one-component polyurethane glue or two-component polyurethane glue.

The concrete layer 1 is poured on the stress dispersion layer 2 by pouring.

Concrete preparation process is as follows:

Step 1. Unfold the hot-dip galvanized steel sheet with a width of 1000mm and a thickness of 1.0mm and cut it into a 3.0M long plate after being pressed by a rolling mill to make a metal plate layer 1, and then spray a single-component polyurethane glue on it, and then Lay compression-resistant high-density rock wool boards on it to form rock wool board layer 2. The compression-resistant high-density rock wool boards have a bulk density of 120kg/m ³ , a thickness of 75mm, and a thermal conductivity of 0.043w/mk; Spray glue on the high-density rock wool board, and finally cover the cut kraft paper on the rock wool board, pressurize, solidify, and set aside. The effective width of the plate in this example is 688mm, the plate thickness is 75mm, and the slope height is 76mm.

Step 2, pave the waterproof layer 3 on the kraft paper, and use modified asphalt SBS as the water release material;

Step 3: Fix the stress dispersion layer 4 on the water release layer 3, and the stress dispersion layer 4 adopts galvanized steel wire mesh;

Step 4: Pouring the reinforced concrete layer 5 on the stress dispersion layer 4 .

The air sound insulation of the sound insulation and heat insulation composite board made through the above steps is ≮65dB, the impact sound pressure level is less than 55dB, and the thermal conductivity is ≯0.3W/m·K. Therefore, it has a very good sound insulation and heat insulation effect.

If the above-mentioned metal plate layer 1 adopts a hot-dip galvanized steel plate with a width of 1000mm and a thickness of 1.2mm, and the rock wool layer 2 adopts a structural rock wool plate (with a bulk density of 120kg/m ³ , a thickness of 75mm, and a thermal conductivity of 0.043w/mk ), the adhesive uses single-component polyurethane glue, the veneer material uses kraft paper, the waterproof layer 3 uses polyethylene polypropylene fiber waterproof material, and the stress dispersion layer 4 uses ribbed metal mesh. The specific preparation process is the same as above, and the prepared product is also Satisfied: air sound insulation ≮65dB, impact sound pressure level<55dB, thermal conductivity ≯0.3W/m·K.

If the above-mentioned metal plate layer 1 is made of 1000mm and 1.2mm thick color steel profiled steel plate, the rock wool layer 2 is made of granular rock wool (with a bulk density of 120kg/m ³ and a thermal conductivity of 0.045w/mk), and the binder is One-component polyurethane adhesive, the veneer material is made of kraft paper with aluminum foil, the waterproof layer 3 is made of modified bitumen SBS, the stress dispersion layer 4 is made of galvanized steel wire mesh, granular rock wool is mixed with one-component polyurethane Steel profiled steel plate, other preparation processes are the same as above. The prepared product satisfies: air sound insulation ≮65dB, impact sound pressure level<55dB, thermal conductivity ≯0.3W/m·K.

In summary, the above are only preferred embodiments of the present utility model, and are not used to limit the scope of protection of the present utility model. Therefore, any modifications, equivalent replacements, Improvements and the like should all be included within the protection scope of the present utility model.

Claims (7)

1, a kind of sound-heat insulating compound floor slab is characterized in that, comprising: sheet-metal layers, rock wool flaggy, waterproofing course, stress dispersion layer and layer of concrete, described sheet-metal layers, rock wool flaggy, waterproofing course, stress dispersion layer stack gradually with layer of concrete is in the same place.

2, a kind of sound-heat insulating compound floor slab as claimed in claim 1 is characterized in that, described metal level is dark rib type profiled sheet or shallow rib type profiled sheet.

3, a kind of sound-heat insulating compound floor slab as claimed in claim 1 is characterized in that, described rock wool flaggy is resistance to compression high density rock cotton board, structure rock wool, granular rock wool, structural glass face, molding polyphenyl, extruded polystyrene or polyurethane.

4, a kind of sound-heat insulating compound floor slab as claimed in claim 1 is characterized in that, described waterproofing course is polyethylene polypropylene waterproofing materials, terylene waterproofing materials, polyethylene flexible geo-membrane or modified bitumen SBS.

5, a kind of sound-heat insulating compound floor slab as claimed in claim 1 is characterized in that, described stress dispersion layer is galvanized steel wire netting or muscle wire lath sheet is arranged.

As the arbitrary described a kind of sound-heat insulating compound floor slab of claim 1 to 5, it is characterized in that 6, be provided with overlay coating between described rock wool flaggy and the waterproofing course, overlay coating is bonded on the described rock wool flaggy by cementing agent.

7, a kind of sound-heat insulating compound floor slab as claimed in claim 6 is characterized in that, the selected surface lining of described overlay coating is kraft or the kraft that is compounded with the aluminium pool; Described cementing agent is mono-component polyurethane glue or bi-component polyurethane ester gum.

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