CN213868747U - Ground structure for building - Google Patents

Abstract

The utility model discloses a floor structure for building, belonging to the technical field of building construction, in particular comprising an original structure floor, which is characterized in that the floor structure also comprises a heat preservation layer, a plastic film, a concrete layer and a finish coat; the heat-insulating layer is laid on the ground of the original structure building, the plastic film is fixedly laid on the heat-insulating layer, the concrete layer is laid on the plastic film, and the decorative surface layer is arranged on the concrete layer. The utility model discloses utilize plastic film to keep apart concrete layer and heat preservation mortar and original structure building ground, avoided because original structure building ground and the shrinkage deformation of heat preservation mortar aggravate concrete layer's fracture, hollowing and layering. Additionally, the utility model provides a ground structure only needs 7cm thickest can solve technical problem such as ground fracture, sanding among the prior art, and then has promoted indoor height, has improved the resident experience of resident family.

Description

Ground structure for building

Technical Field

The utility model relates to a construction technical field, more specifically the ground structure for building that says so relates to.

Background

The cement mortar ground is the most common structural style in the ground structure, and it is with its cost low, and construction convenience, easy maintenance's characteristics are often used for building ground by the construction unit, but its quality problem is also quite a lot, in current building construction process, directly through the bonding method direct bonding concrete layer above structure building ground usually, but when the thickness of concrete is thinner, often can appear bonding insecure condition, and then appear phenomenons such as ground fracture, hollowing, sand rise, skinning. In addition, watering and maintenance are not timely after the ground pouring is finished, the surface folding time of the ground is not determined according to environmental factors such as weather and temperature, and the phenomena of surface cracking and sand scaling of the ground can be caused by too early or too late surface folding. The hollowing and cracking of the ground are common problems which are puzzled to construction and construction units, and if the ground is cracked seriously, the water seepage of floors can be caused, so that the use and the attractiveness of the ground are influenced.

The utility model discloses a modified cement base self-leveling mortar is disclosed in utility model patent with publication number CN108083754A, and under the prerequisite of using high performance water reducing agent, it mixes the performance of silica sol, polymer latex and expander modified cement base self-leveling mortar jointly to reduce the fracture phenomenon of concrete in the use, improved the cohesive strength and the shock resistance of product simultaneously. However, if the self-leveling mortar is applied to the ground structure in the prior art, the phenomena of cracking, hollowing, sanding, peeling and the like of the concrete ground cannot be completely avoided.

Therefore, how to provide a ground structure that reduces the phenomena of concrete ground cracking, hollowing, etc. is a problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a ground structure for building can avoid ground to produce fracture, hollowing and layering phenomenon.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a floor structure for building comprises an original structure floor, an insulating layer, a plastic film, a concrete layer and a finish coat;

the heat-insulating layer is laid on the ground of the original structure building, the plastic film is fixedly laid on the heat-insulating layer, the concrete layer is laid on the plastic film, and the decorative surface layer is arranged on the concrete layer.

The utility model discloses a ground structure need not to confirm according to environmental factors such as weather, temperature and carry out ground receipts face in time, and then can not appear because too early or too late receives the face and the ground fracture that causes and phenomenons such as sand-blasting crust.

Preferably, the concrete layer is silica sol self-compacting anti-cracking concrete.

Preferably, the thickness of the concrete is 20-40 mm.

The utility model provides a silica sol self-compaction anti-crack concrete adopts the modified cement base self-leveling mortar who discloses in the publication is CN108083754A, has stronger compressive property and anti folding performance. The mortar can overcome the problem of massive construction cracking caused by later shrinkage of the common cement-based self-leveling mortar in the prior art.

Preferably, the plastic film is a plastic film for building.

The utility model discloses in utilize plastic film can separate concrete and heat preservation mortar and original structure building ground, and then avoided because original structure building ground and the shrinkage deformation of heat preservation mortar aggravate concrete layer's fracture, hollowing and layering.

Preferably, the heat-insulating layer is heat-insulating mortar.

Preferably, the thickness of the heat preservation layer is 20-30 mm.

The utility model lays heat preservation mortar above the floor of the original structure building, which can be well bonded with the floor,

can know via foretell technical scheme, compare with prior art, the utility model discloses a be applied to the ground structure of building, its beneficial effect lies in: firstly, the utility model discloses in use modified cement base self-leveling mortar to have good compressive property and anti folding property. The mortar can overcome the problem of massive construction cracking caused by later shrinkage of the common cement-based self-leveling mortar in the prior art. Further, the utility model discloses in used plastic film with concrete layer and heat preservation separation, made the two can not direct contact, avoided concrete layer because the shrinkage deformation of heat preservation and the fracture that arouses, layering and hollowing scheduling problem.

Furthermore, the utility model discloses can directly bond the finish coat after concrete placement, need not to water the maintenance after pouring the completion, can save a large amount of manpower and materials.

Finally, ground thickness among the prior art generally is about 30cm, then can have the fracture hidden danger if the thickness undersize, and the utility model provides a ground structure thickest only need 7cm can solve technical problem such as ground fracture, sanding among the prior art, and then has promoted indoor height, has improved resident family's living experience.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present invention; the building comprises a finish coat 1, a concrete layer 2, a plastic film 3, a heat-insulating layer 4 and an original structure floor 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

The embodiment of the utility model discloses a floor structure for building, as shown in figure 1, which comprises an original structure floor 1, a heat-insulating layer 2, a plastic film 3, concrete 4 and a decorative surface layer 5;

wherein the heat-insulating layer 2 is heat-insulating mortar with the thickness of 30mm and is laid above the ground 7 of the original structure building; the plastic film 3 is a plastic film for construction in the prior art, has negligible thickness and is fixedly laid above the heat-insulating mortar in the heat-insulating layer 2; the concrete is modified cement-based self-leveling mortar disclosed in publication No. CN108083754A, and the thickness of the concrete is 30 mm; finally, various facing layers are directly paved on the concrete to improve the ground attractiveness.

Example 2

A floor structure for a building, which is different from embodiment 1 in that:

(1) the thickness of the heat-insulating mortar of the heat-insulating layer is 20 mm;

(2) the thickness of the concrete layer was 25 mm.

Example 3

A floor structure for a building, which is different from embodiment 1 in that:

(1) the thickness of the heat-insulating mortar of the heat-insulating layer is 40 mm;

(2) the thickness of the concrete layer was 20 mm.

Comparative example 1

A floor structure for a building, which is different from embodiment 1 in that:

the silica sol self-compacting anti-cracking concrete is directly poured above the heat-insulating mortar after the heat-insulating mortar is solidified without a plastic film.

Comparative example 2

A floor structure for a building, which is different from embodiment 1 in that:

the concrete layer is commercial concrete, and silica sol self-compacting anti-cracking concrete is not used.

The technical effects are as follows:

the utility model discloses the technical parameter of the ground structure who obtains refers to table 1

TABLE 1

As can be seen from the above data, the products of the embodiments 1-3 of the present invention all have good fracture and compression resistance, the 24h compressive strength is 8.8-9.0MPa, the 28d flexural strength is 24.1-24.5MPa, and no cracking or cracking phenomenon occurs in the test period. Compared with the product without the plastic film in the comparative example 1, the 24h compressive strength and the 28d flexural strength are both obviously reduced, and plastic cracks and a large number of air holes appear in the test period; the product obtained in comparative example 2 using the commercial concrete had an extremely low 24h compressive strength of only 0.91MPa, and although the 28d flexural strength was slightly higher than that of the present invention, shrinkage cracks occurred after 28 d. Therefore, the product provided by the utility model can effectively prevent the phenomena of cracking, hollowing and the like on the ground,

the embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A floor structure for a building, comprising: former structure building ground, its characterized in that still includes: the heat insulation layer, the plastic film, the concrete layer and the facing layer;

the heat-insulating layer is laid above the ground of the original structure building;

the plastic film is fixedly laid above the heat-insulating layer;

the concrete layer is laid above the plastic film;

the decorative layer is arranged above the concrete layer.

2. The floor structure of claim 1, wherein the concrete layer is silica sol self-compacting anti-crack concrete.

3. A floor structure for a building according to claim 2, wherein said concrete layer has a thickness of 20-40 mm.

4. A floor structure for building construction according to claim 1, wherein said plastic film is a plastic film for building construction.

5. The floor structure of claim 1, wherein the insulation layer is insulation mortar.

6. A floor structure for building according to claim 5, wherein said insulation layer has a thickness of 20-30 mm.

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