Anti-pollution rapid construction method of zero-layer board

Abstract

The application provides a zero-layer-board anti-pollution rapid construction method, which raises the concrete pouring elevation of the beam, and is supplemented by measures such as plastic film tarping, thereby avoiding the high cost problem of traditional brick-mold membrane masonry, significantly improving the construction efficiency, realizing the fast and efficient operation of zero-layer-board construction backfilling, and guaranteeing the cleanliness of the steel bars and the durability of the structure; after pouring the zero-layer-board cushion, a gasoline blower is used to clean the dust in the gap between the beam and the column steel bars, thereby improving the cleanliness of the steel bars, saving the cost, shortening the construction period, and improving the construction quality.

Description

Technical Field

[0001] This invention belongs to the field of main structure engineering technology, specifically relating to a rapid construction method for preventing pollution of zero-layer slabs. Background Technology

[0002] In building construction, the construction of the ground floor slab is a crucial step in the main structural engineering. There are two traditional methods for ground floor slab construction. One method involves brick formwork construction → rebar tying → beam and column pouring → earthwork backfilling → ground floor slab rebar tying → concrete pouring. This method has a long construction cycle and high cost, and does not meet the requirements for efficient construction. The other method involves pouring the ground floor slab beams and columns at the same elevation as the ground floor slab foundation concrete, reserving space for the beam and column rebar at the ground floor slab location. In this method, the backfill soil easily contaminates the rebar during earthwork backfilling, especially at the rebar joints of beams and columns, where the rebar density is high, making cleaning difficult and prone to corrosion, thus affecting the durability and safety of the structure.

[0003] This process achieves rapid and efficient construction and backfilling of zero-layer slab beams and columns by raising the pouring elevation and using measures such as covering with plastic film, while ensuring the cleanliness of the reinforcing steel and the durability of the structure. Summary of the Invention

[0004] This invention provides a rapid construction method for preventing pollution in zero-layer slabs, which solves the problems of long construction cycle and easy contamination of reinforcing steel bars by backfill soil in the prior art.

[0005] This invention provides a rapid construction method for preventing contamination of zero-layer boards, comprising the following steps:

[0006] (1) Use fair-faced formwork to support the beams and columns and tie the reinforcing bars of the beams and columns; among them, the concrete pouring elevation of the beams is controlled to be 10mm higher than the zero-floor slab cushion layer, and the concrete pouring elevation of the columns is controlled to reach the top elevation of the zero-floor slab.

[0007] (2) Before the backfill layer is constructed, the exposed steel bars on the top of the beam are fully wrapped and covered with rigid plastic film to prevent the backfill soil from contaminating the steel bars;

[0008] (3) The soil in the zero-layer slab cushion area is compacted and leveled, and then a concrete cushion layer is poured;

[0009] (4) Use a gasoline blower to clean the dust from the joints and gaps of the steel bars in the beams and columns;

[0010] (5) After tying the reinforcing bars of the zero-layer slab and connecting them with the reserved reinforcing bars of the beams and columns, pour the concrete of the zero-layer slab structural layer.

[0011] Compared with the prior art, the advantages of this invention are as follows: by raising the concrete pouring elevation of the beam and supplementing it with measures such as covering it with plastic film, not only is the high cost problem of traditional brick formwork masonry avoided, but the construction efficiency is also significantly improved, and the backfilling and other operations of zero-layer slab construction are carried out quickly and efficiently, while ensuring the cleanliness of the reinforcing steel and the durability of the structure; at the same time, after pouring the zero-layer slab cushion layer, a gasoline blower is used to clean the dust between the beam and column reinforcing steel, which improves the cleanliness of the reinforcing steel, saves costs, shortens the construction period, and improves the construction quality.

[0012] Furthermore, in step (1), the deviation between the concrete pouring elevation of the beam and the elevation of the cushion layer is controlled within ±2mm.

[0013] Furthermore, in step (2), the thickness of the rigid plastic film is not less than 0.5 mm.

[0014] Furthermore, in step (4), the power of the gasoline blower is 5~6kw and the air volume is 1800~2000m³ / h.

[0015] Furthermore, the zero-layer slab cushion layer has a strength grade of C20 concrete and a thickness of 140~160mm. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a rapid construction method for anti-pollution of zero-layer boards according to an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Column; 2. Top elevation of zero-floor slab; 3. Concrete pouring elevation of beam; 4. Zero-floor slab bedding layer; 5. Backfill soil layer; 6. Plastic film; 7. Beam. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention will be clearly and completely described below in conjunction with the embodiments of this invention. Obviously, the described embodiments are only some embodiments of this invention, not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0020] Please see Figure 1 This invention provides a rapid construction method for preventing pollution in zero-layer boards, comprising the following steps:

[0021] (1) Use fair-faced formwork to support beam 7 and column 1, and tie the reinforcing bars of beam 7 and column 1; wherein, the concrete pouring elevation 3 of beam is controlled to be 410mm higher than the zero layer slab cushion layer, and the concrete pouring elevation of column 1 is controlled to reach the top elevation 2 of the zero layer slab.

[0022] (2) Before the construction of backfill layer 5, use rigid plastic film 6 to fully wrap and cover the exposed steel bars on the top of beam 7 to prevent the backfill soil from contaminating the steel bars;

[0023] (3) The soil in area 4 of the zero-layer slab cushion layer is compacted and leveled, and then a concrete cushion layer is poured.

[0024] (4) Use a gasoline blower to clean the dust from the joints and gaps of the reinforcing bars of beam 7 and column 1;

[0025] (5) After tying the reinforcing bars of the zero-layer slab and connecting them with the reserved reinforcing bars of beam 7 and column 1, pour the concrete of the zero-layer slab structural layer.

[0026] The pollution-proof and rapid construction method for zero-layer slabs provided by this invention, by raising the concrete pouring elevation of the beams and supplementing it with measures such as covering with plastic film, not only avoids the high cost problem of traditional brick formwork masonry, but also significantly improves construction efficiency, enabling quick and efficient operations such as zero-layer slab construction and backfilling, while ensuring the cleanliness of the reinforcing steel and the durability of the structure; at the same time, after pouring the zero-layer slab foundation, a gasoline blower is used to clean the dust between the beam and column reinforcing steel, improving the cleanliness of the reinforcing steel, saving costs, shortening the construction period, and improving construction quality.

[0027] In one specific embodiment, in step (1), the deviation of the beam concrete pouring elevation 3 from the subbase elevation is controlled within ±2mm; in step (2), the thickness of the rigid plastic film 6 is not less than 0.5mm; in step (4), the power of the gasoline blower is 5~6kw, and the air volume is 1800~2000m³ / h; the strength grade of the zero-layer board subbase 4 is C20 concrete, and the thickness is 140~160mm.

[0028] The invention provides a rapid and pollution-resistant construction method for zero-layer slabs, solving the problem of difficult cleaning of beam and column reinforcement during construction. During backfilling, exposed beam reinforcement is covered with rigid plastic film, greatly reducing dust contamination. This method expands upon conventional construction methods by altering the usual beam and column concrete pouring elevations. The beam concrete pouring elevation is 1cm higher than the zero-layer slab level, and the column concrete pouring elevation is equal to the top of the zero-layer slab, allowing for deeper cleaning of beam and column reinforcement using a gasoline blower. Zero-layer slab structures constructed using this method are more stable, with significant reinforcement protection, improving overall construction quality.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; if these modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should all be considered to be within the protection scope of the present invention.

Claims

1. A rapid construction method for preventing pollution in zero-layer boards, characterized in that, Includes the following steps: (1) Use fair-faced formwork to support the beams and columns and tie the reinforcing bars of the beams and columns; among them, the concrete pouring elevation of the beams is controlled to be 10mm higher than the zero-floor slab cushion layer, and the concrete pouring elevation of the columns is controlled to reach the top elevation of the zero-floor slab. (2) Before the backfill layer is constructed, the exposed steel bars on the top of the beam are fully wrapped and covered with rigid plastic film to prevent the backfill soil from contaminating the steel bars; (3) The soil in the zero-layer slab cushion area is compacted and leveled, and then a concrete cushion layer is poured; (4) Use a gasoline blower to clean the dust from the joints and gaps of the steel bars in the beams and columns; (5) After tying the reinforcing bars of the zero-layer slab and connecting them with the reserved reinforcing bars of the beams and columns, pour the concrete of the zero-layer slab structural layer.

2. The rapid construction method for anti-pollution of zero-layer boards according to claim 1, characterized in that, In step (1), the deviation between the concrete pouring elevation of the beam and the elevation of the cushion layer is controlled within ±2mm.

3. The rapid construction method for anti-pollution of zero-layer boards according to claim 1, characterized in that, In step (2), the thickness of the rigid plastic film is not less than 0.5 mm.

4. The rapid construction method for anti-pollution of zero-layer boards according to claim 1, characterized in that, In step (4), the power of the gasoline blower is 5~6kw and the air volume is 1800~2000m³ / h.

5. The rapid construction method for anti-pollution of zero-layer boards according to claim 1, characterized in that, The zero-layer slab cushion layer has a strength grade of C20 concrete and a thickness of 140~160mm.

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