Construction method of gypsum cast-in-place wall

A construction method and technology of cast-in-place walls, applied in the processing of building materials, walls, manufacturing tools, etc., can solve the problems of high construction quality requirements, low construction efficiency, and affecting construction efficiency, and achieve high construction efficiency and high construction speed Fast, simple construction effect

Pending Publication Date: 2022-04-05
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The exposed surface of the sprayed wall is sprayed with gypsum slurry, and there is bound to be a risk of cracking, so it is necessary to press glass fiber mesh into the plastering layer; (5) The construction efficiency is not high
Spraying the wall requires strict control of the quality of the gypsum slurry, the setting and curing process, and the flatness. The construction quality is high, the construction process is fine, and skilled workers are required to operate, which affects the construction efficiency.

Method used

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  • Construction method of gypsum cast-in-place wall

Examples

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Effect test

preparation example Construction

[0033] The embodiments of the present invention all use the paper-free fiber-free high-strength gypsum board prepared with phosphogypsum as the raw material described in the patent application number 20201113379.1. Specifically, the preparation method of the gypsum board specifically includes the following steps:

[0034] S1. Drying and dehydration: drying and dehydrating phosphogypsum at 150-180°C under normal pressure to obtain phosphogypsum hemihydrate;

[0035] S2. Compression molding: Mix the hemihydrate phosphogypsum obtained in S1 with water at a mass ratio of 100:10-30, and stir quickly and evenly, then transport the water-mixed hemihydrate phosphogypsum into the mold, and heat it at 5-25MPa After pressing and pressing under pressure to form a gypsum board, demoulding;

[0036] S3. Water spray hydration: place the gypsum board obtained in S2 on the roller conveying device, and run forward with the roller conveying device for 10 to 30 minutes. During this period, continuo...

Embodiment 1

[0042] S1. Install the light steel keel: according to the wall thickness of 120mm, select the light steel keel with a vertical keel width of 100mm, and install the jackie keel according to the conventional construction method;

[0043] S2. Riveting the gypsum board: choose a 10mm thick gypsum board as the wall panel, and use screws to rivet the gypsum board on both sides of the dragon frame to form the wall surface of the proposed wall and serve as a cavity for the subsequent pouring of the wall core The role of the mold box, wherein the gypsum board has played the role of a permanent template; it should be noted that each side wall of the present invention is spliced ​​by multiple pieces of gypsum board;

[0044] S3. Filling: Use plaster of paris powder as raw material, and mix water and plaster of paris powder in a ratio of 50:100 to prepare gypsum paste, and fill the plaster paste into two adjacent gypsum boards In the gap between them, it plays a role of caulking, and at t...

Embodiment 2

[0049] S1. Install the light steel keel: according to the wall thickness of 180mm, select the light steel keel with a vertical keel width of 150mm, and install the jackie keel according to the conventional construction method;

[0050] S2. Riveting the gypsum board: choose a 15mm thick gypsum board as the wall panel, and use screws to rivet the gypsum board on both sides of the dragon frame to form the wall surface of the proposed wall and serve as a cavity for the subsequent pouring of the wall core The role of the mold box, in which the gypsum board acts as a permanent formwork;

[0051] S3. Filling: Use plaster of paris powder as raw material, and mix water and plaster of paris powder in a ratio of 50:100 to prepare gypsum paste, and fill the plaster paste into two adjacent gypsum boards In the gap between them, it plays a role of caulking, and at the same time, it can avoid the leakage of the subsequent pouring of gypsum slurry; it should be noted that the gypsum paste in ...

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Abstract

The invention relates to the technical field of engineering construction, in particular to a construction method of a gypsum cast-in-place wall. The construction method mainly comprises the following steps that according to the thickness of a wall to be built, light steel keels are selected and installed into a keel frame; gypsum boards are selected as wall panels, and the gypsum boards are laid on the two sides of the keel frame; preparing gypsum paste, and filling the gap between the two adjacent gypsum boards with the gypsum paste; and gypsum slurry is prepared and poured into the cavity mold box located between the gypsum boards on the two sides of the keel frame, and after the gypsum slurry is solidified, construction of the cast-in-place wall is completed. The construction technology is simple in step, convenient to operate and control and low in comprehensive wall building cost, industrial byproduct gypsum waste such as ardealite can be fully utilized, and waste recycling is achieved.

Description

technical field [0001] The invention relates to the technical field of engineering construction, in particular to a construction method for constructing a cast-in-place wall by using a gypsum board as a permanent formwork. Background technique [0002] The light steel keel composite wall constructed with paper-faced gypsum board, calcium silicate board, wood board and other boards belongs to the hollow wall. The shock absorption effect of the hollow wall is poor, and it is easy to generate vibration noise when the wall is knocked, which is difficult to be accepted by residents. [0003] In contrast, solid walls have better effects in terms of shock absorption and sound insulation, and have wider application fields. The construction of traditional solid walls mainly adopts the method of laying bricks and plastering, that is, first using cement mortar to build bricks into a wall, and then plastering a layer of cement mortar on the surface. [0004] In recent years, the const...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/00E04G21/02E04B2/86E04B1/68B28B3/02B28B11/24
Inventor 周俊舒杼
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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