Damping and sound insulation structure for damp-proof building and construction method thereof

Abstract

The invention relates to a damping and sound insulation structure for a damp-proof building. The damping and sound insulation structure comprises a prefabricated wall body and a barrier layer body, wherein the barrier layer body comprises a waterproof layer arranged on the outer side and a damping layer arranged on the inner side, the damping layer is provided with a plurality of energy absorption blocks and damping blocks, the energy absorption blocks are provided with polypropylene foaming plates, polyurethane elastic layers are arranged in the damping blocks, and the waterproof layer adopts polyurethane coating. By adopting the technical scheme, the waterproof layer is arranged to increase the damp-proof function, and the polypropylene (PP) foaming plates are used as the energy absorption blocks, so that the damping and sound insulation structure is environmentally friendly, light in weight, good in rigidity, resistant to deformation and high in thermal deformation temperature; the polyurethane elastic layers are adopted, so that the damping and sound insulation structure has the advantages of being high in heat insulation and sound insulation effects; meanwhile, the structure in contact with a sprayed foam material and the mechanical integrity of the surface are achieved, so that the waterproof layer and the damping layer can be seamlessly connected; and the waterproof layer adopts the polyurethane coating, so that the waterproof layer is easily and tightly attached to the prefabricated wall body in the forming process, and the connection tightness of the prefabricated wall body and the barrier layer body is enhanced.

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...

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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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