A shock-absorbing and sound-insulating structure for a moisture-proof building and its construction method

Abstract

The invention relates to a shock-absorbing and sound-insulating structure for a moisture-proof building, which comprises a prefabricated wall body and a barrier layer body. The barrier layer body includes a waterproof layer arranged on the outside and a shock-absorbing layer arranged on the inside. The energy-absorbing block and the shock-absorbing block, the energy-absorbing block is provided with a polypropylene foam board, the shock-absorbing block is provided with a polyurethane elastic layer, and the waterproof layer adopts polyurethane coating. By adopting the above technical scheme, the waterproof layer is set to increase the moisture-proof function, and the polypropylene (PP) foam board is used as the energy-absorbing block, which is environmentally friendly, light in weight, good in rigidity, resistant to deformation, and has a high heat distortion temperature; while polyurethane is used The elastic layer, which has the advantages of strong heat and sound insulation, and the mechanical integrity of the structure and surface in contact with the spray foam material, enables the seamless connection of the waterproof layer and the shock-absorbing layer; while the waterproof layer uses polyurethane coatings, During the forming process, it is easy to fit closely with the prefabricated wall body, so as to enhance the tightness of the connection between the prefabricated wall body and the barrier layer.

Description

technical field [0001] The invention relates to the technical field of engineering construction, in particular to a shock-absorbing and sound-insulating structure for a moisture-proof building and a construction method thereof. Background technique [0002] With people's continuous pursuit of life and yearning for high-quality life, and the improvement of the 2019 green building evaluation system, the requirements for sound insulation and shock absorption of buildings are becoming more and more stringent. Traditional building walls are usually reinforced concrete layers or brick walls. , the effect of blocking sound is relatively poor; in the prior art, when carrying out sound insulation construction of the wall, one or more layers of sound insulation boards will be directly covered on the surface of the wall to achieve a certain sound insulation effect, but the sound insulation is still It can not achieve good results, and the construction is more difficult and the construc...

AI Technical Summary

Problems solved by technology

[0002] With people's continuous pursuit of life and yearning for high-quality life, and the improvement of the 2019 green building evaluation system, the requirements for sound insulation and shock absorption of buildings are becoming more and more stringent. Traditional building walls are usually reinforced concrete layers or brick walls. , the effect of blocking sound is relatively poor; in the prior art, when carrying out sound insulation construction of the wall, one or more layers of sound insulation boards will be directly covered on the surface of the wall to achieve a certain sound insulation effect, but the sound insulation is still It can not achieve good results, and the construction is more difficult and the construction cost is higher. However, the sound insulation panels used in construction are difficult to take into account both installation and stability at the same time. There is often a conflict between the stability of the main board and the shock absorption performance. Single, only has sound insulation effect but no moisture-proof function, low service life, limited application, low consumer acceptance and satisfaction

[0003] One of the methods of traditional materials: sound insulation mortar, an inorganic dry powder material mixed with cement, inorganic materials and rubber particles, has a large construction thickness, and needs to be constructed with a thickness of 30-50mm to meet the building floor GB / T50121-2005 The standard sound insulation and shock absorption requirements of the "Building Sound Insulation Evaluation Standard", and the construction cost is high, the cycle is slow, the net floor height between floors is reduced after construction, and it is easy to hollow and crack after completion, and it increases the load bearing of the building floor. It is not recommended to promote; the second method of traditional materials: rubber sound insulation mat, a product made of waste plastic particles foamed with resin through extrusion and cutting. The material is flammable, easy to absorb water, and easy to hollow out. , and the material also has disadvantages such as low compressive strength and many construction steps

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