Integral construction method of overall surface layer and expansion joint

Abstract

This invention discloses an integrated construction method for surface layer and expansion joints, including the following construction steps: S1: verify the elevation of the structural floor slab and kick the excessively high parts of the structural floor slab; S2: moisten the structural floor slab with water; S3: level and divide the structural floor slab, setting screed strips to divide the structural floor slab into multiple areas, and setting metal strips on the screed strips; S4: pour fine stone concrete leveling layer into the divided areas according to the screed strips, and cover and insulate; S5: set a self-leveling layer on the fine stone concrete leveling layer; This method can effectively solve the problem of poor flatness of the overall floor leveling layer and reduce problems such as non-standard cutting of expansion joints in the later stage. For this leveling method, if the surface layer is wood flooring or other decorative materials, it can reduce the need for secondary construction of the later leveling process.

Description

Technical Field

[0001] This invention relates to the technical field of building construction, and in particular to an integrated construction method for integral surface layer and expansion joints. Background Technology

[0002] The conventional method for creating a leveling layer for a solid surface involves marking horizontal lines, preparing the base layer, wetting it with water, applying mortar spots, laying concrete, leveling, cutting expansion joints, and curing. However, this method fails to adequately refine the leveling layer, resulting in poor flatness and numerous cracks. Ultimately, subsequent processes must compensate for the quality issues of the previous steps, increasing construction costs.

[0003] Currently, there are many construction quality problems in the construction of concrete leveling layers, such as numerous ground cracks, poor flatness, hollow areas, and sand blowing. Conventional processes can no longer meet the requirements of refined construction. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides an integrated construction method for both the overall surface layer and expansion joints.

[0005] The present invention provides an integrated construction method for both the overall surface layer and expansion joints, employing the following technical solution:

[0006] An integrated construction method for surface layer and expansion joints includes the following construction steps:

[0007] S1: Verify the structural floor slab elevation and kick off any excessively high sections of the structural floor slab;

[0008] S2: Sprinkle water to moisten the structural floor slab;

[0009] S3: Leveling and dividing the structural floor slab, setting screed strips to divide the structural floor slab into multiple areas, and setting metal strips on the screed strips;

[0010] S4: Pour a fine stone concrete leveling layer in the area defined by the screed strips and cover it with insulation.

[0011] S5: A self-leveling layer is installed on the fine aggregate concrete leveling layer.

[0012] Optional, S3.1: Apply mortar spots to the structural floor slab.

[0013] Optional, S3.2: Use a plumb line to determine two vertical points. After the mortar spots have completely cured, use cement mortar to make a continuous screed strip between the two adjacent mortar spots, which is consistent with the surface of the two points.

[0014] Optional, S3.3: During the process of making the screed strip, a straightedge is used to make vertical up-and-down movements between two points to make the surface of the screed strip parallel to the surfaces of the two points.

[0015] Optionally, the longitudinal cross-section of the metal strip is in the shape of "ji".

[0016] Optionally, the metal strip has a receiving groove filled with an elastic material.

[0017] Optionally, during the production of the screed strip, the metal strip with the elastic material is placed on the surface of the screed strip. After the screed strip solidifies and forms, the upper surface of the metal strip is parallel to the upper surface of the screed strip.

[0018] In summary, the present invention includes at least one of the following beneficial technical effects: It can well solve the problem of poor flatness of the overall floor screed layer, reduce problems such as irregular cutting of expansion joints in the later stage. For this screeding method, if the surface layer is wooden flooring or other decorative materials, it can reduce the secondary construction of the later screeding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention.

[0020] Description of the reference numerals: 1, screed strip; 2, plaster cake; 3, metal strip; 4, elastic material. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following is a further detailed description of the present invention in conjunction with the attached Figure 1 drawings.

[0022] An embodiment of the present invention discloses an integrated construction method for an overall surface layer and expansion joints.

[0023] Refer to Figure 1 , an integrated construction method for an overall surface layer and expansion joints, includes the following construction steps:

[0024] S1: Recheck the elevation of the structural floor slab and kick the super-high parts of the structural floor slab;

[0025] S2: Sprinkle water on the structural floor slab to moisten it;

[0026] S3: Level and divide the structural floor slab. Set screed strips 1 on the structural floor slab to divide the structural floor slab into multiple areas, and set metal strips 3 on the screed strips 1;

[0027] S4: Pour a fine aggregate concrete screed layer in the divided areas according to the screed strips 1 and cover it for heat preservation;

[0028] S5: Set a self-leveling layer on the fine aggregate concrete screed layer.

[0029] It can well solve the problem of poor flatness of the overall floor screed layer, reduce problems such as irregular cutting of expansion joints in the later stage. For this screeding method, if the surface layer is wooden flooring or other decorative materials, it can reduce the secondary construction of the later screeding process.

[0030] S3.1: Stick plaster blocks 2 on the structural floor slab. The plaster blocks 2 serve as the control points for the thickness of the plaster layer and the surface flatness, and need to be properly stuck on the structural floor slab according to the positions and dimensions required by the design before plastering. The material of the plaster blocks 2 is mainly composed of components such as cement, lime, and sand. The cement blocks of the plaster blocks 2 that control the flatness and verticality can ensure the surface flatness and increase durability.

[0031] S3.2: Use a string pendulum to hang a vertical line to determine two perpendicular points. After the plaster blocks 2 are completely cured, use cement mortar to make a continuous screed bar 1 between two adjacent plaster blocks 2 that is consistent with the surfaces of the two points. First, it is necessary to use a string pendulum to hang a vertical line to determine two perpendicular points, which are located on two adjacent plaster blocks 2 and are used to control the verticality of the plaster layer. After the plaster blocks 2 are completely cured, the screed bar 1 can be made between two adjacent plaster blocks 2 using cement mortar. The screed bar 1 is consistent with the surfaces of the two points in terms of verticality and flatness.

[0032] S3.3: During the process of making the screed bar 1, use a straightedge to make vertical movements up and down between the two points to make the surface of the screed bar 1 parallel to the surfaces of the two points. Using a straightedge to make vertical movements up and down between the two points can further adjust the parallelism of the surface of the screed bar 1 to the surfaces of the two points, thereby ensuring verticality and flatness.

[0033] The longitudinal section of the metal bar 3 is in a "U" shape. The metal bar 3 has a receiving groove, and an elastic material 4 is filled in the receiving groove. The "U"-shaped metal bar 3 can form a stable support structure for the screed bar 1. Its "U"-shaped design can provide good support force to ensure the accuracy and stability during the concrete pouring process. Filling an elastic material 4 such as rubber or polyurethane foam in the "U"-shaped metal bar 3 can enhance the stability and durability of the structure. The filling of the elastic material 4 enhances the elasticity and toughness of the metal bar 3, enabling it to better absorb and disperse the stress during the construction process. In this embodiment, the elastic material 4 is foam. The elastic material 4 can absorb and disperse the stress during the construction process, reduce the structural deformation and cracking caused by temperature changes or external forces, form expansion joints, eliminating the process of making additional expansion joints. At the same time, it prevents the concrete from pouring into the metal bar 3 during the process of pouring the fine aggregate concrete leveling layer or making the screed bar 1, avoiding the deformation or damage of the metal bar 3 caused by the pouring of concrete, and ensuring the construction quality and the integrity of the building structure.

[0034] The expansion joint formed by the elastic material 4 in the metal bar 3 of the present invention can naturally adapt to the expansion and contraction deformation of the structure due to temperature changes, eliminating the process of making additional expansion joints, not only simplifying the construction process but also reducing the construction cost.

[0035] During the process of making the rib strip 1, a metal strip 3 with elastic material 4 is placed on the surface of the rib strip 1. After the rib strip 1 solidifies, the upper surface of the metal strip 3 is parallel to the upper surface of the rib strip 1.

[0036] The above-mentioned technical solutions not only improve the stability and durability of building structures, but also simplify the construction process and reduce construction costs. Furthermore, by creating natural expansion joints and preventing concrete from seeping into the metal strip 3, the construction quality and the long-term safety and stability of the building structure are further guaranteed.

[0037] To improve the construction quality of the leveling layer and avoid common quality problems, while also reducing the need for secondary cutting of expansion joints later, we optimized the design of the leveling layer. First, the large area of ​​the leveling layer was divided. Second, two points were used for positioning: screeding strips and mortar spots, based on the elevation lines. During the construction of the concrete screeding strips, "U"-shaped metal strips 3 were added and filled with elastic material 4. The "U"-shaped metal strips 3 were placed on both sides of the screed surface according to the elevation, ensuring the flatness of the screed surface. This effectively solved the problems of leveling layer flatness and expansion joint placement.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A method for integrated construction of surface layer and expansion joints, characterized in that: It includes the following construction steps: S1: Recheck the elevation of the structural floor slab and kick the overly high parts of the structural floor slab; S2: Sprinkle water on the structural floor slab to moisten it; S3: Level and divide the structural floor slab. Set screed bars on the structural floor slab to divide it into multiple areas, and set metal bars on the screed bars; S4: Pour a fine aggregate concrete leveling layer according to the areas divided by the screed bars and carry out covering and insulation; S5: Set a self-leveling layer on the fine aggregate concrete leveling layer; The longitudinal section of the metal bar is in a "channel" shape; The metal bar has a receiving groove, and an elastic material is filled in the receiving groove; During the production process of the screed bar, place the metal bar with the elastic material on the surface of the screed bar. After the screed bar solidifies and forms, the upper surface of the metal bar is parallel to the upper surface of the screed bar.

2. The integrated construction method for the overall surface layer and expansion joints according to claim 1, characterized in that: S3.1: Paste plaster blocks on the structural floor slab.

3. The integrated construction method for the overall surface layer and expansion joints according to claim 2, characterized in that: S3.2: Use a string pendulum to hang a vertical line to determine two perpendicular points. After the plaster blocks are completely cured, make a continuous screed bar between two adjacent plaster blocks with cement mortar, which is consistent with the surfaces of the two points.

4. The integrated construction method for the overall surface layer and expansion joints according to claim 1, characterized in that: S3.3: During the process of making the screed bar, use a straightedge to make vertical movements up and down between the two points to make the surface of the screed bar parallel to the surfaces of the two points.

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