阅读说明：本技术 一种地下室顶板裂缝修复方法及修复结构 (Basement roof crack repairing method and repairing structure ) 是由 马永鸿 卢利 潘广文 范伟能 宁涛 于 2021-09-24 设计创作，主要内容包括：本发明公开了一种地下室顶板裂缝修复方法及修复结构,其中,地下室顶板裂缝修复方法,包括以下步骤：对地下室顶板出现有裂缝的区域表面进行打磨、凿毛,以形成打磨凿毛区域；将由聚合物水泥砂浆涂抹形成的填充层涂抹于打磨凿毛区域,并填充于裂缝内；在填充层且位于裂缝的两侧之间固定受拉材料；在填充层和受拉材料上涂抹填平层,以完全覆盖所述填充层和受拉材料,并使填平层外缘与地下室顶板表面平齐。在本发明中,利用聚合物水泥砂浆的化学粘结力和与打磨凿毛区域形成的机械咬合力来使填充层牢牢覆盖在打磨凿毛区域和填充于裂缝内,以对裂缝起到修复效果,然后配合受拉材料和填充层的设置,以进一步增强了地下室顶板受拉性能。(The invention discloses a basement roof crack repairing method and a basement roof crack repairing structure, wherein the basement roof crack repairing method comprises the following steps: polishing and roughening the surface of an area with cracks on the top plate of the basement to form a polished and roughened area; coating a filling layer formed by coating polymer cement mortar on a polishing and scabbling area, and filling the filling layer in the crack; fixing a tension material between the filling layer and the two sides of the crack; and smearing a filling and leveling layer on the filling layer and the tension material so as to completely cover the filling layer and the tension material and enable the outer edge of the filling and leveling layer to be flush with the surface of the top plate of the basement. In the invention, the chemical bonding force of the polymer cement mortar and the mechanical interlocking force formed by the polymer cement mortar and the grinding and roughening area are utilized to firmly cover the filling layer in the grinding and roughening area and fill the filling layer in the crack so as to repair the crack, and then the tensile property of the basement roof is further enhanced by matching with the arrangement of the tension material and the filling layer.)

1. The basement roof crack repairing method is characterized by comprising the following steps of:

polishing and roughening the surface of an area with cracks on the top plate of the basement to form a polished and roughened area;

coating a filling layer formed by coating polymer cement mortar on a polishing and scabbling area, and filling the filling layer in the crack;

fixing a tension material between the filling layer and the two sides of the crack;

and smearing a filling and leveling layer on the filling layer and the tension material so as to completely cover the filling layer and the tension material and enable the outer edge of the filling and leveling layer to be flush with the surface of the top plate of the basement.

2. The basement roof crack repairing method of claim 1, wherein the surface of the cracked area of the basement roof is ground by a grinding machine.

3. The method for repairing cracks in the top plate of the basement as claimed in claim 1, wherein the sanded and roughened areas are washed with clean water before the filling layer formed by applying the polymer cement mortar is applied to the sanded and roughened areas and filled in the cracks.

4. The basement roof crack repair method of any one of claims 1-3, wherein the step of fixing a tension material between the filling layer and the two sides of the crack comprises the steps of:

laying a tension material on the filling layer and above the crack;

and a plurality of fixing pieces are nailed on the top plate of the basement and positioned on two sides of the tension material along the length direction of the crack.

5. The basement roof crack repair method of any one of claims 1-3, further comprising: covering a plastic film on the surface of the filling layer, standing for 24 hours, and removing the plastic film.

6. The basement roof crack repair method of claim 5, further comprising: after removing the plastic film, the film was cured by spraying water for 7 days.

7. The basement roof crack repairing structure is implemented by the basement roof crack repairing method of any one of claims 1 to 6 and comprises the following steps:

the surface of the crack area of the basement top plate is polished and roughened to form a polished and roughened area;

the filling layer is formed by coating polymer cement mortar, is coated on the polishing and roughening area and is filled in the crack;

a tension material fixed to the filling layer and located between both sides of the crack;

and the leveling layer is coated on the filling layer and the tension material so as to completely cover the filling layer and the tension material and enable the outer edge of the leveling layer to be flush with the surface of the top plate of the basement.

8. The basement roof crack repair structure of claim 7, wherein: the basement top plate is provided with a plurality of fixing pieces, and the fixing pieces are nailed on two sides of the tensile material along the length direction of the crack.

9. The basement roof crack repair structure of claim 7, wherein: the tension material is a basalt fiber mesh.

10. The basement roof crack repair structure of claim 7, wherein: the leveling layer is formed by coating polymer cement mortar.

Technical Field

The invention relates to the technical field of building construction, in particular to a basement roof crack repairing method and repairing structure.

Background

At present, the large basement roof cracks when construction load is overloaded or concrete strength is insufficient and the roof is put into use too early. The common repairing modes for the concrete slab are grouting, steel plate pasting and reinforcing and the like.

However, these methods are complicated in construction, the steel plate is susceptible to corrosion by the environment, and the adhesive is also susceptible to the environment and temperature, even resulting in interface peeling, and thus cannot meet the repair requirements.

Disclosure of Invention

Based on the above, the primary object of the present invention is to provide a basement roof crack repairing method for improving the crack repairing quality.

The invention also aims to provide a basement roof crack repairing structure obtained by the basement roof crack repairing method.

A basement roof crack repairing method comprises the following steps:

polishing and roughening the surface of an area with cracks on the top plate of the basement to form a polished and roughened area;

coating a filling layer formed by coating polymer cement mortar on a polishing and scabbling area, and filling the filling layer in the crack;

fixing a tension material between the filling layer and the two sides of the crack;

and smearing a filling and leveling layer on the filling layer and the tension material so as to completely cover the filling layer and the tension material and enable the outer edge of the filling and leveling layer to be flush with the surface of the top plate of the basement.

In the invention, the filling layer formed by polymer cement mortar is smeared on the polishing and chiseling area and is filled in the crack, so that the filling layer is firmly covered on the polishing and chiseling area and is filled in the crack by utilizing the chemical bonding force of the polymer cement mortar and the mechanical interlocking force formed by the polymer cement mortar and the polishing and chiseling area, the crack is prevented from being continuously expanded while the repairing effect on the crack is achieved, compared with the method for repairing the crack by adopting epoxy structural adhesive in the prior art, the polymer cement mortar is not easily influenced by high-temperature environment, the repairing quality of the crack is ensured, and then the tension performance of the top plate of the basement is further enhanced and the expansion of the crack is limited by arranging the tension material and the filling layer.

Preferably, the surface of the crack area of the basement top plate is polished by a polisher.

Preferably, the sanded and roughened area is washed with clean water before the filling layer formed by the polymer cement mortar is applied to the sanded and roughened area and filled in the crack.

Preferably, said fixing of the tension material between the filling layer and the two sides of the fracture comprises the following steps:

laying a tension material on the filling layer and above the crack;

and a plurality of fixing pieces are nailed on the top plate of the basement and positioned on two sides of the tension material along the length direction of the crack.

Preferably, the basement roof crack repairing method further comprises the following steps: covering a plastic film on the surface of the filling layer, standing for 24 hours, and removing the plastic film.

Preferably, the basement roof crack repairing method further comprises the following steps: after removing the plastic film, the film was cured by spraying water for 7 days.

As a second aspect, the invention further relates to a basement roof crack repairing structure implemented by the basement roof crack repairing method, which includes:

the surface of the crack area of the basement top plate is polished and roughened to form a polished and roughened area;

the filling layer is formed by coating polymer cement mortar, is coated on the polishing and roughening area and is filled in the crack;

a tension material fixed to the filling layer and located between both sides of the crack;

and the leveling layer is coated on the filling layer and the tension material so as to completely cover the filling layer and the tension material and enable the outer edge of the leveling layer to be flush with the surface of the top plate of the basement.

Preferably, the basement roof crack repair structure further comprises a plurality of fixing pieces, and a plurality of fixing pieces are nailed on the basement roof and located on two sides of the tension material along the length direction of the crack.

Preferably, the tension material is a basalt fiber mesh.

Preferably, the leveling layer is formed by coating polymer cement mortar.

Compared with the prior art, the crack is repaired through the polymer cement mortar, the reinforcing effect can be played to the crack area of the basement roof, the tensile effect of the basalt fiber mesh is matched, the tensile capacity of the basement roof is further improved, the crack is limited to be expanded, and the repairing effect of the basement roof is guaranteed.

For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a diagram illustrating steps of a basement roof crack repairing method according to the present invention;

fig. 2 is a schematic view of a basement roof crack repair structure according to the invention.

Reference numerals: 1. polishing the scabbling area; 2. a filling layer; 3. a tensile material; 4. and (7) filling and leveling the layer.

Detailed Description

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like, referred to or may be referred to in this specification, are defined relative to their configuration, and are relative concepts. Therefore, it may be changed according to different positions and different use states. Therefore, these and other directional terms should not be construed as limiting terms.

The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of implementations consistent with certain aspects of the present disclosure.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

As shown in FIG. 1, the invention relates to a basement roof crack repairing method, which comprises the following steps:

polishing and roughening the surface of an area with cracks on the top plate of the basement to form a polished and roughened area 1;

coating a filling layer 2 formed by coating polymer cement mortar on the polishing and roughening area 1 and filling the filling layer in the crack;

fixing a tension material 3 between the filling layer 2 and two sides of the crack;

and smearing a leveling layer 4 on the filling layer 2 and the tension material 3 so as to completely cover the filling layer 2 and the tension material 3 and enable the outer edge of the leveling layer 4 to be flush with the surface of the top plate of the basement.

In the invention, the filling layer 2 formed by polymer cement mortar is smeared on the grinding and chiseling area 1 and is filled in the crack, so that the filling layer 2 is firmly covered on the grinding and chiseling area 1 and is filled in the crack by utilizing the chemical bonding force of the polymer cement mortar and the mechanical biting force formed by the polymer cement mortar and the grinding and chiseling area 1, the crack is prevented from being continuously enlarged while the crack is repaired, compared with the method for repairing the crack by adopting epoxy structural adhesive in the prior art, the polymer cement mortar is not easily influenced by high-temperature environment, the repairing quality of the crack is ensured, and then the tension material 3 and the filling layer 2 are arranged, so that the tension performance of a top plate of a basement is further enhanced, and the expansion of the crack is limited.

The regional surface that has the crack appears the basement roof is polished, is chiseled to form when polishing the chisel regional 1, adopt the polisher to polish the regional surface that has the crack to the basement roof, so that constructor evenly polishes the basement roof.

The basement roof crack repairing method further comprises the following steps: before the filling layer 2 formed by coating the polymer cement mortar is coated on the grinding and roughening area 1 and filled in the crack, the grinding and roughening area 1 is washed by clean water so as to remove floating ash of the grinding and roughening area 1 by the clean water, and the polymer cement mortar is coated on the grinding and roughening area 1 and forms the filling layer 2 under the condition that the grinding and roughening area 1 is wet, so that stronger chemical adhesive force and mechanical biting force are realized.

In this embodiment, the step of fixing the tension material 3 between the two sides of the crack and in the filling layer 2 comprises the following steps:

laying a tension material 3 on the filling layer 2 and above the crack;

and a plurality of fixing pieces are nailed on the top plate of the basement and positioned at two sides of the tension material 3 along the length direction of the crack.

By laying the tension material 3 and adopting the fixing piece to correspondingly fix two sides of the tension material 3 on two sides of the crack, the tensile property of the basement top plate in the crack area is improved, the crack is limited from expanding, and the quality of repairing the crack is improved.

The basement roof crack repairing method further comprises the following steps: covering a plastic film on the surface of the filling and leveling layer 4, standing for 24 hours, and removing the plastic film.

After the filling layer 4 is arranged, a plastic film is adopted for 24 hours of protection, so that the filling layer 2 and the filling layer 4 are protected before being condensed, and the crack repairing effect is influenced.

Further, the basement roof crack repairing method further comprises the following steps: after the plastic film is removed, watering and curing are carried out for 7 days to ensure that the stress requirement is met.

As shown in fig. 2, the invention also relates to a basement roof crack repairing structure, which is implemented by adopting the basement roof crack repairing method and comprises the following steps:

the surface of an area with cracks on the top plate of the basement is polished and roughened to form a polished and roughened area 1;

the filling layer 2 is formed by coating polymer cement mortar, is coated on the polishing and roughening area 1 and is filled in the crack;

the tension material 3 is fixed on the filling layer 2 and is positioned between two sides of the crack;

and the filling and leveling layer 4 is coated on the filling layer 2 and the tension material 3, so that the filling layer 2 and the tension material 3 are completely covered, and the outer edge of the filling and leveling layer 4 is flush with the surface of the top plate of the basement.

According to the invention, the crack is repaired through the filling layer 2, meanwhile, the tensile property of the crack of the top plate of the basement is improved, and then the tensile property of the crack of the top plate of the basement is further enhanced through the arrangement of the tension material 3 and the filling and leveling layer 4, so that the repairing quality of the crack is ensured.

The basement roof crack repair structure still includes a plurality of mountings, on the basement roof and be located tension material 3 and be equipped with a plurality ofly along the both sides nail of crack length direction to ensure the steadiness of tension material 3 positions, guarantee its drawknot effect in crack department simultaneously.

In other embodiments, a plurality of fixing members located at one side of the tension material 3 are staggered with a plurality of fixing members located at the other side of the tension material 3, so that the use of the fixing members is reduced while securing the position of the tension material 3, and the construction efficiency can be improved.

In a further embodiment, a plurality of fixing pieces on one side of the tension material 3 are symmetrically arranged with a plurality of fixing pieces on the other side of the tension material 3 to ensure the stability of the position of the tension material 3.

In the present embodiment, the fixing elements are rivets, in particular stainless steel rivets, to ensure that they have sufficient strength to fix the tensile material 3 and are not susceptible to corrosion by environmental influences.

In this embodiment, the tension material 3 is a basalt fiber mesh, and both an elastic model and a limit tension thereof can meet the reinforcement requirement, and can be stressed together with polymer cement mortar to coordinate deformation, thereby improving the effects of repairing cracks and reinforcing the top plate of the basement.

Preferably, the basalt fiber grids are integrally connected along the length direction of the crack so as to ensure the integrity of the basalt fiber grids, facilitate laying and fixing and ensure the tensile strength of the basalt fiber grids.

In the embodiment, the thickness of the filling and leveling layer 4 is 8-10mm, so as to ensure the reinforcing effect on the cracks of the top plate of the basement.

Preferably, the leveling layer 4 is formed by coating polymer cement mortar to improve the effect of repairing cracks and reinforce the top plate of the basement to improve the tensile property of the top plate.

Compared with the prior art, the polymer cement mortar is used for repairing cracks, meanwhile, the reinforcing effect can be achieved on crack regions of the basement roof, meanwhile, the tensile strength of the basement roof is further improved by matching with the tensile strength of the basalt fiber grids, so that the crack is limited from expanding, and the repairing effect on the basement roof is guaranteed.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.