CN214941489U

CN214941489U - Floor sound insulation structure

Info

Publication number: CN214941489U
Application number: CN202121029359.3U
Authority: CN
Inventors: 黄沃; 郑旭彬
Original assignee: Guangzhou Wangtat Project Management & Consultancy Co ltd
Current assignee: Guangzhou Wangtat Project Management & Consultancy Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-11-30
Anticipated expiration: 2031-05-13

Abstract

The utility model relates to a floor sound-proof structure. The floor sound insulation structure comprises a reinforced concrete floor, a sound insulation coating layer, a coarse sand layer, a dry and hard cement mortar layer and a surface decoration layer, wherein the lower parts of sand grains of the coarse sand layer are inserted into the sound insulation coating layer, the sub sound insulation coating layer is positioned at the top, and the upper parts of the sand grains of the coarse sand layer extend into the dry and hard cement mortar layer. Floor sound-proof structure utilizes the roughness that coarse sand layer improved sound-proof coating layer surface course, can improve the adhesion degree of sound-proof coating layer and hard cement mortar layer under the prerequisite that does not influence the clear height of floor and showing the influence time limit for a project, and then improves the sound-proof coating layer durability that floor fitment basic unit reaches.

Description

Floor sound insulation structure

Technical Field

The utility model relates to a building technical field specifically relates to a floor sound-proof structure.

Background

The existing floating floor slab construction scheme has three main flow directions, namely a damping pad, sound insulation mortar and sound insulation coating, and aims to reduce the influence on the net height of a floor when the sound insulation and damping effect is improved as much as possible. The sound insulation coating is one of the first choice because of its construction convenience, relative ultra-thin, sound insulation damping shock absorption performance good, adhesive force good, can not appear cracking etc..

In the prior art, most of floors with the sound insulation coating are directly subjected to the above procedure after the sound insulation coating is cured. However, most floor sound-insulating coatings on the market have relatively smooth cured back layers, the friction force between the sound-insulating coating layer and the upper layer of structure is relatively low, and moreover, the floor sound-insulating coating has certain elasticity, and after deformation caused by temperature change and walking and collision of a floor, the sound-insulating coating layer is easy to separate from the upper layer of structure, so that the following adverse consequences can be caused:

1. the living rooms of real estate housing projects mostly adopt dry-mixed mortar tiles on the sound-proof coating surface, when hollowing inspection is subsequently carried out, the deviation between knocking sound and normal sound is generated, and the misunderstanding of owners is easily caused to generate large-scale reworking when the buildings are handed over;

2. sound insulation coating water permeability is relatively poor, and when decorative surface course washd, the moisture that permeates the sound insulation coating surface course forms the large tracts of land easily and is detained, is difficult for evaporating, and then breeds the bacterium. Meanwhile, the temperature of each block of the coating is uneven, and the durability of a floor decoration base layer and a sound insulation coating layer is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention has been made to provide a floor slab sound insulating structure that overcomes or at least partially solves the above problems.

The floor sound insulation structure comprises a reinforced concrete floor and a sound insulation coating layer formed by sound insulation coating coated on the upper surface of the reinforced concrete floor, wherein the sound insulation coating layer comprises a plurality of laminated sub sound insulation coating layers which are sequentially coated; the floor slab sound insulation structure also comprises a coarse sand layer, and the lower parts of the sand grains of the coarse sand layer are inserted into the sub sound insulation coating layer positioned at the top in the sound insulation coating layer; the floor slab sound insulation structure further comprises a dry and hard cement mortar layer laid on the coarse sand layer, wherein the upper parts of the sand grains of the coarse sand layer extend into the dry and hard cement mortar layer, and a surface decoration layer laid on the dry and hard cement mortar layer.

Optionally, the thickness of the sub sound insulation coating layer is 1-2 mm.

Optionally, the average grain size of the sand grains of the coarse sand layer is 0.5-1 mm.

Optionally, the average grain size of the sand grains of the dry and hard cement mortar layer is 0.25-0.5 mm.

Optionally, the surface decorative layer is a floor tile surface layer.

The embodiment of the utility model provides a floor sound-proof structure utilizes the roughness that coarse sand layer improved sound-proof coating layer surface course, can improve the adhesion degree of sound-proof coating layer and hard cement mortar layer under the prerequisite that does not influence the floor net height and show the influence time limit for a project, and then improves the sound-proof coating layer durability that floor fitment basic unit reached.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic structural view of an embodiment of the floor sound insulation structure of the present invention.

Description of reference numerals: 1. a reinforced concrete floor; 2. a sound insulation coating layer; 3. a sub sound insulation coating layer; 4. a coarse sand layer; 5. a hard cement mortar layer; 6. and (7) a surface decoration layer.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but not limiting thereof, and those skilled in the art will appreciate that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims and equivalents thereof.

The terms "central," "longitudinal," "transverse," "length," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like, referred to or as may be referred to in the description of the invention, are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "comprises," "comprising," and any variations thereof, are intended to cover non-exclusive inclusions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A floor sound insulating structure according to an embodiment of the present invention is described below with reference to the accompanying drawings.

Referring to fig. 1, according to the utility model discloses a floor sound insulation structure, it includes reinforced concrete floor 1, coats in the soundproof coating layer 2 that the soundproof coating of reinforced concrete floor 1 upper surface formed. The main sound insulation raw material in the sound insulation coating is a nano multilayer structure material, the molecular material of the coating is clamped in the middle, microparticles with sound insulation effect are uniformly distributed on the whole middle film, and the sound insulation coating plays a role in sound absorption through reducing transmitted sound wave energy. Thus, the soundproof paint layer 2 can block and absorb noise caused by floor collision.

Specifically, the soundproof coating layer 2 includes a plurality of mutually laminated sub soundproof coating layers 3 formed by coating in sequence. Preferably, the thickness of the sub sound insulation coating layer 3 is 1-2 mm. The thickness of sound-proof coating layer 2 can be 3 ~ 5mm, and during the construction, the layering is coated, and the thickness on every layer is 1 ~ 2mm, treats that the top layer solidifies the drying back coating next floor to form a plurality of sub sound-proof coating layer 3 that stack up each other.

The floor sound insulation structure further comprises a coarse sand layer 4, and the lower parts of sand grains of the coarse sand layer 4 are inserted into the sub sound insulation coating layer 3 positioned on the top in the sound insulation coating layer 2. The floor slab sound insulation structure further comprises a dry and hard cement mortar layer 5 laid on the coarse sand layer 4, and the upper parts of the sand grains of the coarse sand layer 4 extend into the dry and hard cement mortar layer 5. Coarse sand layer 4 can improve the roughness on 2 surface courses of sound insulating coating layer, and then improves sound insulating coating layer 2 and the degree of adhesion of dry and hard cement mortar layer 5, improves sound insulating coating layer 2's degree of durability.

Preferably, the average grain size of the sand grains of the dry and hard cement mortar layer 5 is 0.25-0.5 mm, namely medium sand is adopted. The average grain size of the sand grains of the coarse sand layer 4 is 0.5-1 mm, namely coarse sand is adopted so as to form gradation with dry and hard cement mortar, and the caking property is improved.

The floor slab sound insulation structure further comprises a surface decoration layer 6 laid on the dry and hard cement mortar layer 5. Preferably, the surface decorative layer 6 is a tile surface layer to enhance the aesthetic appearance of the floor.

The embodiment of the utility model provides a floor sound-proof structure utilizes the roughness on 2 surface courses of sound-proof coating layer of coarse sand layer 4 improvement, can improve sound-proof coating layer 2 and the degree of adhesion of dry and hard cement mortar layer 5 under the prerequisite that does not influence the floor net height and show the influence time limit for a project, and then improves 2 degrees of durability of sound-proof coating layer that floor fitment basic unit reaches.

The following describes a construction method of the above-described floor slab soundproofing structure. The construction method of the floor slab sound insulation structure comprises the following steps:

1) the upper surface of the reinforced concrete floor is cleaned, no dirt, loose objects and greasy dirt and grease on the upper surface are ensured, and the upper surface is kept dry.

2) And (3) constructing a sound insulation coating layer, namely coating the sound insulation coating on the upper surface of the reinforced concrete floor slab according to the design thickness requirement to form the sound insulation coating layer. And (3) coating the sound-insulating coating layer by layer, and coating the next layer after the surface layer is solidified and dried to form a plurality of sub sound-insulating coating layers which are mutually laminated.

3) And before the uppermost sub sound insulation coating layer is solidified, uniformly spraying a layer of coarse sand on the sound insulation coating layer to form a coarse sand layer.

The pressure-adjustable dry sand blasting machine can be used for spraying, during the coating construction of the sound insulation coating layer on the top, the operation can be carried out in blocks according to the actual size of the operation area and the operation range of the dry sand blasting machine, and the sand blasting can be synchronously started after the sound insulation coating layer on the top of each block is coated.

During sand blasting, the pressure and the height of the dry sand blasting machine are controlled according to the operation distance, and the dry sand blasting machine is vertically sprayed to reduce the impact force on the uppermost sub sound insulation coating layer as much as possible, so that coarse sand is uniformly distributed on the uppermost sub sound insulation coating layer. After the uppermost sub sound-insulation coating layer is solidified, coarse sand is bonded with the uppermost sub sound-insulation coating layer, so that the roughness of the surface of the sound-insulation coating layer is improved. For not influencing the clear height of floor, the equipartition one deck grit can on the sub-sound insulation dope layer of the top.

After the coarse sand layer construction is finished, the bottom crossing needs to be carried out on constructors in subsequent working procedure operation, and soft bottom shoes such as foam shoes are required to be worn as much as possible; the child sound insulation coating layer on the top is prevented from sliding by slight walking as much as possible, and damage to the sound insulation coating layer is reduced.

4) And after the uppermost sub sound insulation coating layer is solidified, paving dry and hard cement mortar on the coarse sand layer to form a dry and hard cement mortar layer.

5) And paving a surface decorative layer on the dry and hard cement mortar layer.

The embodiment of the utility model provides a floor sound insulation structure's construction method, before the sub-sound insulation coating layer of the top solidifies, evenly spray the one deck grit to the sound insulation coating layer, improve the roughness on sound insulation coating layer surface course, can be under the prerequisite that does not influence the floor net height and show the influence time limit for a project, improve the adhesion degree on sound insulation coating layer and hard cement mortar layer, and then improve the sound insulation coating layer durability that floor fitment basic unit reaches.

Claims

1. A floor sound insulation structure which characterized in that: the sound insulation coating comprises a reinforced concrete floor and a sound insulation coating layer formed by sound insulation coating coated on the upper surface of the reinforced concrete floor, wherein the sound insulation coating layer comprises a plurality of laminated sub sound insulation coating layers which are sequentially coated; the floor slab sound insulation structure also comprises a coarse sand layer, and the lower parts of the sand grains of the coarse sand layer are inserted into the sub sound insulation coating layer positioned at the top in the sound insulation coating layer; the floor slab sound insulation structure further comprises a dry and hard cement mortar layer laid on the coarse sand layer, wherein the upper parts of the sand grains of the coarse sand layer extend into the dry and hard cement mortar layer, and a surface decoration layer laid on the dry and hard cement mortar layer.

2. The floor slab sound insulation structure according to claim 1, wherein: the thickness of the sub sound insulation coating layer is 1-2 mm.

3. The floor slab sound insulation structure according to claim 2, wherein: the average grain size of the sand grains of the coarse sand layer is 0.5-1 mm.

4. The floor slab sound insulation structure according to claim 3, wherein: the average grain size of the sand grains of the dry and hard cement mortar layer is 0.25-0.5 mm.

5. The floor slab sound insulation structure according to any one of claims 1 to 4, wherein: the surface decoration layer is a floor tile surface layer.