Crack construction method for wall junction

Abstract

The invention provides a crack construction method for a wall junction, which comprises the following steps of: carrying out base layer treatment on the junction of adjacent walls to form a flat construction surface; nailing an anti-crack steel wire mesh at the crack, so that the anti-crack steel wire mesh forms a covering surface; spraying slurry to form a slurry surface; fiber anti-crack mortar is smeared on the mortar surface, and the coating surface formed by the fiber anti-crack mortar covers the covering surface formed by the anti-crack steel wire mesh; paving a plaster layer in the anti-crack steel wire mesh and on the anti-crack steel wire mesh; and pressing alkali-resistant fiber gridding cloth on the plaster layer. According to the invention, the integrity and crack resistance of the wall body are improved, and the cracking problem caused by wall body material difference or improper construction is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of crack repair construction at the junction of walls, and in particular to a crack repair construction method at the junction of walls. Background Art

[0002] In construction projects, the treatment of wall junctions has always been an important part of construction. Due to the differences in thermal expansion coefficient, water absorption rate, strength and other properties between different wall materials, cracking and other problems are prone to occur at the junctions, which not only affects the aesthetics of the building, but also threatens the structural safety and reliability of the building. In recent years, wall cracks and leakage have been the most complained problems in most projects. Therefore, it is particularly important to develop a material that can effectively resist cracking at the wall junction and a corresponding construction method.

[0003] However, there are relatively few studies on the combined use of fiber anti-crack mortar and anti-crack steel wire mesh and their construction methods in the market. How to choose suitable fiber anti-crack mortar and anti-crack steel wire mesh, and how to carry out effective construction are problems that need to be solved urgently. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a crack construction method at the junction of walls to solve the existing problems.

[0005] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows: The crack construction method at the junction of the wall includes the following steps: At the junction of adjacent walls, base treatment is carried out to form a flat construction surface; At the cracks, nail the anti-crack wire mesh so that the anti-crack wire mesh forms a covering surface; Spraying to form a slurry surface; On the slurry surface, apply fiber anti-cracking mortar, and the application surface formed by the fiber anti-cracking mortar covers the covering surface formed by the anti-cracking steel wire mesh; Laying a plaster layer in and on the anti-cracking steel wire mesh; Press the alkali-resistant fiber mesh cloth onto the plaster layer.

[0006] Furthermore, the base treatment also includes performing mortar leveling treatment on the interface between adjacent walls.

[0007] Furthermore, the junction forms a filling wall, and the wire mesh is located between the wall and the filling wall.

[0008] Furthermore, the coating surface is provided at least on the wall surfaces of adjacent walls and at the junction of the walls.

[0009] Furthermore, the width of the covering surface formed by the anti-cracking steel wire mesh is 300 mm, and the width of the coating surface formed by the anti-cracking mortar is greater than the width of the covering surface.

[0010] Furthermore, the fiber anti-cracking mortar plastering thickness is not less than 5 mm.

[0011] Furthermore, the mix ratio of cement mortar added to the anti-cracking fiber is 1:3, and the addition amount is 0.9 kg / m 3 .

[0012] Furthermore, the thickness of the plaster layer is greater than the thickness of the fiber anti-cracking mortar layer.

[0013] The present invention has the following beneficial effects: The structure formed after pouring of the present invention is highly practical and reasonably designed. The connection strength between the plaster layer and the concrete wall surface is increased by spraying, and the crack resistance at the junction of different walls is resisted by the steel wire mesh layer. The anti-cracking measures at the junction of different walls are further strengthened by using fiber anti-cracking mortar, so that the integrity and crack resistance of the wall are further improved. The strength of the connection is further improved by the alkali-resistant fiber mesh cloth layer.

[0014] In the present invention, the base layer is cleaned before the steel wire mesh is nailed to the concrete structure and the infill wall structure, and the uneven interface is leveled with mortar. Secondly, the steel wire mesh is nailed tightly between the concrete structure and the infill wall structure. Thirdly, the anti-cracking fiber mortar layer is laid and roughened to increase the bonding firmness of the plaster layer. Then the plastering is completed, and finally the alkali-resistant fiber mesh cloth is pressed in. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A flow chart of a crack construction method at a wall junction provided by the present invention; Figure 2 A schematic diagram of the filling wall structure provided by the present invention; Figure 3 A schematic diagram of the structure of the wall provided by the present invention; In the figure: 1. Wall; 2. Wire mesh; 3. Coating surface; 4. Plaster layer; 5. Alkali-resistant fiber mesh cloth; 6. Filling wall. DETAILED DESCRIPTION

[0016] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0017] Refer to the attached Figure 1-3As shown, the crack construction method at the junction of walls in the present invention is mainly used for crack prevention construction at the junction of walls, and includes the following steps: At the junction of adjacent walls 1, base treatment is performed to form a flat construction surface; At the cracks, nail the anti-crack steel wire mesh 2 so that the anti-crack steel wire mesh forms a covering surface; Spraying to form a slurry surface; On the slurry surface, fiber anti-cracking mortar is applied, and the applied surface 3 formed by the fiber anti-cracking mortar covers the covering surface formed by the anti-cracking steel wire mesh 2, thereby avoiding exposure of the steel wire mesh 2, etc.; A plaster layer 4 is laid in the crack-resistant steel wire mesh and on its upper layer. At this time, due to the existence of the mesh holes on the steel wire mesh 2, the plaster layer will enter the mesh holes, and then after the mesh holes are filled, the plaster layer will be laid; finally, an alkali-resistant fiber mesh cloth 5 is pressed on the plaster layer 4 to improve the overall strength.

[0018] In order to facilitate construction, the base treatment also includes mortar leveling treatment on the interface of adjacent walls, which mainly involves leveling and handling other impurities, thus preparing for subsequent further construction.

[0019] In this embodiment, a filling wall 6 is formed at the junction, that is, at the crack of the two walls 1, and the wire mesh 2 is located between the wall 1 and the filling wall 6. At this time, all the above steps are further improved on the filling wall 6 to complete the blocking.

[0020] In order to improve the strength of the periphery of the crack, construction is not only carried out at the crack, but also includes construction on both sides of the crack and on the two walls 1, including at least the construction of the wire mesh 2 and the coating surface.

[0021] In this embodiment, the width of the covering surface formed by the anti-cracking steel wire mesh is 300 mm, and the width of the coating surface formed by the anti-cracking mortar is greater than the width of the covering surface; in this embodiment, the thickness of the fiber anti-cracking mortar plastering is not less than 5 mm.

[0022] Preferably, the mix ratio of cement mortar added to the anti-cracking fiber is 1:3, and the addition amount is 0.9 kg / m 3 .

[0023] For protection, the thickness of the plaster layer is greater than the thickness of the fiber anti-cracking mortar layer.

[0024] Refer to the attached Figure 1-3 As shown, the crack construction method at the junction of walls in the present invention includes a wall 1 formed by a concrete structure, a filling wall structure 3, and also includes a steel wire mesh 2, a 5mm fiber anti-cracking mortar layer 3, a plaster layer 4, and an alkali-resistant fiber mesh cloth 5. This structure is set on both sides of the different walls.

[0025] Before nailing the wire mesh to the concrete structure 1 and the filling wall structure 2, the base layer is cleaned, and the uneven parts at the junction are leveled with mortar.

[0026] Said Figure 1 The middle steel wire mesh 2 is 300 mm and is nailed between the concrete structure 1 and the filling wall structure 2.

[0027] Said Figure 2 The medium fiber anti-cracking mortar layer 3 is designed to be 300mm wide and 5mm thick. The mix ratio is 1:3 cement mortar mixed with anti-cracking fiber, and the addition amount is 0.9kg / m3. The fiber anti-cracking mortar layer is roughened after plastering to increase the bonding firmness of the plaster layer 4.

[0028] The present invention provides a combination of fiber anti-cracking mortar and anti-cracking steel wire mesh at the junction of different walls and a construction method thereof, which improves the integrity and crack resistance of the wall and reduces cracking problems caused by differences in wall materials or improper construction.

[0029] Fiber anti-crack mortar is a special building material. By adding fiber materials to mortar, the crack resistance of mortar can be significantly improved. The presence of fiber can effectively disperse stress and prevent mortar from cracking when subjected to external forces. At the same time, fiber can also increase the toughness of mortar and improve its impact resistance and fatigue resistance.

[0030] Anti-crack wire mesh is a mesh material woven from steel wires with high strength and toughness. Laying it at the junction of walls can effectively enhance the overall stability of the wall and prevent the wall from cracking due to material differences or external forces. In addition, the wire mesh can form a good bond with the mortar, further improving the anti-crack performance of the junction.

[0031] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A method for constructing cracks at the junction of walls, characterized in that: The following steps are included: At the junction of adjacent walls, base treatment is carried out to form a flat construction surface; At the cracks, nail the anti-crack wire mesh so that the anti-crack wire mesh forms a covering surface; Spraying to form a slurry surface; On the slurry surface, apply fiber anti-cracking mortar, and the application surface formed by the fiber anti-cracking mortar covers the covering surface formed by the anti-cracking steel wire mesh; Laying a plaster layer in and on the anti-cracking steel wire mesh; Press the alkali-resistant fiber mesh cloth onto the plaster layer.

2. The crack construction method at the wall junction according to claim 1 is characterized in that: The base treatment also includes performing mortar leveling treatment on the interface between adjacent walls.

3. The crack construction method at the wall junction according to claim 2 is characterized in that: The junction forms a filling wall, and the wire mesh is located between the wall and the filling wall.

4. The crack construction method at the wall junction according to claim 2 is characterized in that: The coating surface is arranged at least on the wall surfaces of adjacent walls and at the junction of the walls.

5. The crack construction method at the wall junction according to claim 1 is characterized in that: The width of the covering surface formed by the anti-cracking steel wire mesh is 300 mm, and the width of the coating surface formed by the anti-cracking mortar is greater than the width of the covering surface.

6. The crack construction method at the wall junction according to claim 1 is characterized in that: The fiber anti-cracking mortar plastering thickness is not less than 5mm.

7. The crack construction method at the wall junction according to claim 1 is characterized in that: The mixing ratio of cement mortar added to the anti-cracking fiber is 1:3, and the addition amount is 0.9kg / m 3 .

8. The crack construction method at the wall junction according to claim 1 is characterized in that: The thickness of the plaster layer is greater than the thickness of the fiber anti-cracking mortar layer.

Images