CN214885155U

CN214885155U - Heat preservation and sound insulation structure for ground of self-leveling building

Info

Publication number: CN214885155U
Application number: CN202022651770.6U
Authority: CN
Inventors: 朱士荣; 张国永; 朱维梁; 朱丽婷; 谭经朋; 高峰; 余黎明
Original assignee: Zhejiang Academy Of Building Research & Design Ltd; Huzhou New Green Material Co ltd
Current assignee: Zhejiang Academy Of Building Research & Design Ltd; Huzhou New Green Material Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-11-26
Anticipated expiration: 2030-11-17

Abstract

The utility model provides a heat preservation and sound insulation structure of self-leveling floor ground, its characterized in that includes floor layer (4), heat preservation and sound insulation layer (3), rubble mortar mixing layer (2) and self-leveling mortar layer (1) from bottom to top in proper order, rubble mortar mixing layer (2) includes the rubble and fills the self-leveling mortar in the clearance between the rubble, self-leveling mortar layer (1) is through the cast-in-place self-leveling mortar shaping on the rubble mortar mixing layer, fill self-leveling mortar in the clearance between the rubble and cast-in-place self-leveling mortar integrated cast-in-place shaping on the rubble mortar mixing layer. The utility model discloses simple structure, the application cost is low, can improve building ground heat preservation sound insulation structure's application cost and construction quality greatly.

Description

Heat preservation and sound insulation structure for ground of self-leveling building

Technical Field

The utility model belongs to the technical field of building floor heat preservation, a heat preservation sound insulation structure on self-leveling building ground is related to.

Background

With the increasing of urbanization process and the popularity of urban high-rise houses, living noise between neighborhoods brings great concern to the quality of life of people, and the improvement of the building sound insulation level of residential houses, particularly high-rise houses, becomes a serious concern and strong requirement of common people. The national government pays more and more attention to the problem, and the sound insulation performance of the indoor floor ground has clear requirements in national standards such as civil building sound insulation design standard GB50118 and green building evaluation standard GBT 50378.

At present, the building floor is mostly in a floating structure so as to effectively improve the heat preservation performance and the sound insulation performance of the floor, the floating structure is that a heat preservation (sound insulation) layer is firstly paved on a structural floor, then reinforcing fine stone concrete is poured on the heat preservation layer to serve as a protective layer, and the periphery of the protective layer is isolated from a wall body to form a structure which is heat preservation and sound insulation. When the reinforced fine stone concrete is poured on the heat insulation layer, the surface flatness of the reinforced fine stone concrete after pouring needs to meet the requirements of relevant standards, the fine stone concrete is still leveled manually after pouring, time and labor are wasted, and the construction cost is high.

In the prior art, a self-leveling mortar layer is adopted to replace reinforced fine-grained concrete as a protective layer and a leveling layer, although the self-leveling mortar is simple to construct, and can realize the leveling of the floor without manually wiping, the construction cost of the floating construction of the floor is greatly reduced, but also has some defects when in application, for example, the compressive strength of the self-leveling mortar layer is obviously lower than that of the reinforced fine stone concrete layer, the floor surface is easy to crack when being stressed by larger pressure, and for example, when the heat preservation and sound insulation layer adopts flexible materials such as crosslinked polyethylene cushion composite nano silicon dioxide heat preservation felt with better sound insulation performance, air bubbles exist below the crosslinked polyethylene cushion composite nano silicon dioxide heat preservation felt, the air bubbles can be gradually reduced when the self-leveling mortar is solidified, but the slow reduction of the air bubbles can cause local cracks to appear after the self-leveling mortar layer is solidified due to the slow solidification of the self-leveling mortar, and further improvement is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome above-mentioned prior art's defect, provide a self-leveling building ground heat preservation sound insulation structure for solve the present building ground heat preservation sound insulation structure compressive strength that adopts the self-leveling mortar layer as the protective layer and lower and self-leveling mortar solidify the defect that the back produced the fracture easily.

Therefore, the utility model adopts the following technical scheme: the ground heat-insulating and sound-insulating structure of the self-leveling floor sequentially comprises a floor layer, a heat-insulating and sound-insulating layer, a gravel mortar mixing layer and a self-leveling mortar layer from bottom to top, wherein the gravel mortar mixing layer comprises gravels and self-leveling mortar filled in gaps among the gravels, the self-leveling mortar layer is formed by casting the self-leveling mortar on the gravel mortar mixing layer in a cast-in-place mode, and the self-leveling mortar filled in the gaps among the gravels and the self-leveling mortar cast on the gravel mortar mixing layer in a cast-in-place mode are integrally formed in a cast-in-place mode.

Furthermore, a plurality of vent grooves are formed in the lower portion of the heat preservation and sound insulation layer.

Further, a steel wire mesh is arranged between the gravel mortar mixing layer and the self-leveling mortar layer.

Further, the thickness of the gravel mortar mixing layer is 20-25 mm, the thickness of the self-leveling mortar layer is 15-25 mm, and the particle size of the gravel is 5-20 mm.

Furthermore, the heat preservation and sound insulation layer is made of a crosslinked polyethylene pad and nano-silica heat preservation felt or a hard foam polyurethane and crosslinked polyethylene pad.

The utility model has the advantages that:

(1) the broken stone mortar mixing layer and the self-leveling mortar layer are sequentially laid on the heat-insulation and sound-insulation layer, and self-leveling mortar is directly poured on the broken stones to fill gaps among the broken stones and the self-leveling mortar layer, so that the self-leveling mortar filled in the gaps among the broken stones and the self-leveling mortar poured on the broken stone mortar mixing layer can be integrally cast in situ through one-step construction, the compressive strength of the building ground heat-insulation and sound-insulation structure is greatly enhanced, and the construction cost of the building ground heat-insulation and sound-insulation structure is further reduced;

(2) when the heat preservation and sound insulation layer is made of flexible materials such as the crosslinked polyethylene pad composite nano silicon dioxide heat preservation felt, the crosslinked polyethylene pad composite nano silicon dioxide heat preservation felt is in closer contact with the floor layer and air bubbles below the crosslinked polyethylene pad composite nano silicon dioxide heat preservation felt are rapidly reduced by paving broken stones on the crosslinked polyethylene pad composite nano silicon dioxide heat preservation felt, so that after self-leveling mortar poured on the crosslinked polyethylene pad composite nano silicon dioxide heat preservation felt and the broken stones is solidified, local cracks cannot occur due to the air bubbles below the crosslinked polyethylene pad composite nano silicon dioxide heat preservation felt, and the construction quality of the floor heat preservation and sound insulation structure is effectively improved;

(3) through setting up a plurality of air channels in the lower part on heat preservation sound-proof layer and mixing the layer and setting up the wire net between the mortar layer of flowing automatically at the rubble mortar, make heat preservation sound-proof layer can discharge fast and the mortar layer of flowing automatically after solidifying tensile strength is higher at the bubble of laying rubble back below, further improved building ground heat preservation sound-proof structure's construction quality.

Drawings

Fig. 1 is a schematic first plane view of a heat preservation and sound insulation structure of a ground of a self-leveling building.

Fig. 2 is a schematic second plane view of the heat preservation and sound insulation structure of the ground of the self-leveling building.

Fig. 3 is a schematic three-dimensional structure diagram of the heat preservation and sound insulation layer provided with the vent grooves.

The attached figures are marked and described as 1-self-leveling mortar layer, 2-gravel mortar mixing layer, 3-heat preservation and sound insulation layer, 4-floor layer, 5-steel wire mesh, 6-ventilation groove and 7-gravel.

Detailed Description

The following detailed description is made of specific embodiments of the present invention with reference to the accompanying drawings, so as to make the technical solution of the present invention easier to understand and master. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1, the embodiment provides a heat preservation and sound insulation structure of a self-leveling floor, which comprises a floor layer 4, a heat preservation and sound insulation layer 3, a gravel mortar mixing layer 2 and a self-leveling mortar layer 1 from bottom to top in sequence, wherein the heat preservation and sound insulation layer can be made of heat preservation and sound insulation materials such as a crosslinked polyethylene pad composite nano silica heat preservation felt, a hard bubble polyurethane composite crosslinked polyethylene pad, an extruded polystyrene board, a polyurethane board and an inorganic heat preservation board, the thickness is 10 mm-20 mm, the gravel mortar mixing layer 2 comprises gravels 7 and self-leveling mortar filled in gaps among the gravels, the thickness is 20 mm-25 mm, the particle size of the gravels is 5 mm-20 mm, the self-leveling mortar layer 1 is formed by cast-in-place self-leveling mortar on the gravel mortar mixing layer, the thickness is 15 mm-25 mm, for construction convenience, the self-leveling mortar filled in the gaps among the gravels and the self-leveling mortar cast-in-place on the gravel mortar mixing layer are integrally formed, after the broken stones are laid on the heat insulation and sound insulation layer, self-leveling mortar is directly poured on the broken stones for filling gaps among the broken stones and forming a self-leveling mortar layer.

As shown in fig. 2, in order to further enhance the tensile strength of the self-leveling mortar layer, as shown in fig. 2, a steel wire mesh 5 is arranged between the gravel mortar mixing layer and the self-leveling mortar layer.

As shown in fig. 3, when the thermal insulation and sound insulation layer is made of flexible thermal insulation and sound insulation materials such as crosslinked polyethylene mat composite nano-silica thermal insulation felt, a plurality of ventilation slots 6 can be arranged at the lower part of the thermal insulation and sound insulation layer, so that the crosslinked polyethylene mat composite nano-silica thermal insulation felt is in closer contact with the floor layer and air bubbles below the crosslinked polyethylene mat composite nano-silica thermal insulation felt are rapidly reduced.

In this embodiment, during construction, thermal insulation and sound insulation materials such as the crosslinked polyethylene mat composite nano-silica thermal insulation felt and the like are laid on the floor layer, then broken stones are laid on the crosslinked polyethylene mat composite nano-silica thermal insulation felt, then self-leveling mortar is directly poured on the crosslinked polyethylene mat composite nano-silica thermal insulation felt and the broken stones, a part of the self-leveling mortar enters gaps among the broken stones, a broken stone mortar mixing layer with high compressive strength is formed with the broken stones after solidification, the other part of the self-leveling mortar mixing layer is filled above the broken stone mortar mixing layer, and a self-leveling mortar layer with a flat ground is formed after solidification.

The protection scope of the present invention is not limited to the above description, and any other products in other forms suggested by the present invention, no matter any changes are made in shape or structure and material selection, all of which have the same or similar technical solutions as the present invention, are all within the protection scope of the present invention.

Claims

1. The utility model provides a self-leveling floor ground heat preservation sound insulation structure, its characterized in that includes floor layer (4), heat preservation sound insulation layer (3), rubble mortar mixed layer (2) and self-leveling mortar layer (1) from bottom to top in proper order, rubble mortar mixed layer (2) include the rubble and fill the self-leveling mortar in the clearance between the rubble, self-leveling mortar layer (1) is through cast-in-place self-leveling mortar shaping on the rubble mortar mixed layer, fill self-leveling mortar in the clearance between the rubble and cast-in-place self-leveling mortar integrated cast-in-place shaping on the rubble mortar mixed layer.

2. The self-leveling floor ground heat-insulating and sound-insulating structure according to claim 1, wherein a plurality of vent grooves (6) are formed in the lower portion of the heat-insulating and sound-insulating layer.

3. The self-leveling floor ground heat-insulating and sound-insulating structure according to claim 2, wherein a steel wire mesh (5) is further arranged between the gravel mortar mixing layer and the self-leveling mortar layer.

4. The self-leveling floor ground heat-preservation and sound-insulation structure according to any one of claims 1 to 3, wherein the thickness of the gravel mortar mixing layer is 20mm to 25mm, the thickness of the self-leveling mortar layer is 15mm to 25mm, and the particle size of the gravel is 5mm to 20 mm.

5. The self-leveling floor ground heat-insulating and sound-insulating structure according to claim 4, wherein the heat-insulating and sound-insulating layer (3) is made of a crosslinked polyethylene mat compounded with a nano-silica heat-insulating felt or a hard foam polyurethane compounded with a crosslinked polyethylene mat.