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A concrete for the displacement of door openings in brick walls

A technology of concrete and door opening, applied in the field of concrete, can solve the problems of easy cracking, affecting the beauty of the wall, and the frame of the door opening is not easy, and achieve the effect of beautiful wall.

Active Publication Date: 2019-02-12
重庆驰旭混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the newly formed frame of the door opening is not easy to be firmly combined with the original wall, and the gap between the frame and the wall is easy to crack, which affects the beauty of the wall

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] For a factory building renovation project, it is necessary to expand the two sides of a door opening on the brick wall by 40cm outward. The operation steps are as follows:

[0016] First, use conventional methods to knock off 60-70cm of the brick walls on both sides of the door.

[0017] Then, prepare concrete according to the present invention, step is as follows:

[0018] ① Take 200 parts by weight of Portland slag cement, 360 parts of quartz sand, 50 parts of acrylic resin, 30 parts of micron carbon black, 20 parts of cellulose grafted chitosan, 8 parts of polyvinylpyrrolidone, and 25 parts of sweet potato starch , 10 parts of gelatin powder, 5 parts of sodium sulfite powder, and appropriate amount of water.

[0019] ②Take an appropriate amount of water and heat it to boiling, add cellulose-grafted chitosan, sweet potato starch, and gelatin powder into the boiling water, stir quickly and evenly, then cool down to room temperature naturally, continue to add polyvinyl...

Embodiment 2

[0024] For an interior decoration project, the door opening of the bathroom needs to be moved 35cm to one side. The operation steps are as follows:

[0025] First, knock off 50cm of the brick wall on one side of the door with conventional methods.

[0026] Then, prepare concrete according to the present invention, step is as follows:

[0027] ① Take 240 parts by weight of slag portland cement, 400 parts of quartz sand, 60 parts of acrylic resin, 40 parts of micron carbon black, 25 parts of cellulose grafted chitosan, 12 parts of polyvinylpyrrolidone, and 30 parts of sweet potato starch , 15 parts of gelatin powder, 8 parts of sodium sulfite powder, and appropriate amount of water.

[0028] ②Take an appropriate amount of water and heat it to boiling, add cellulose-grafted chitosan, sweet potato starch, and gelatin powder into the boiling water, stir quickly and evenly, then cool down to room temperature naturally, continue to add polyvinylpyrrolidone, sodium sulfite powder, an...

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Abstract

The invention discloses a concrete for displacement of a brick wall door opening. The concrete is prepared from, by weight, 200-240 parts of Portland blast furnace slag cement, 360-400 parts of quartz sand, 50-60 parts of acrylic resin, 30-40 parts of micron-scale carbon black, 20-25parts of cellulose grafted chitosan, 8-12 parts of polyvinyl pyrrolidone, 25-30 parts of sweet potato starch, 10-15parts of gelatine powder, 5-8 parts of sodium sulfite powder and a proper amount of water. The concrete for displacement of the brick wall door opening can be highly bonded with a brick wall together after naturally solidifying, a concrete body can extend into the gaps of the brick wall and form a dense connecting layer with the surface of the brick wall, and accordingly integrated forming between the concrete and a wall body is achieved. No cracking is produced between the new door opening formed by concrete building and the wall body, and the wall body is more attractive.

Description

technical field [0001] The present invention relates to a concrete, more specifically, a concrete for the displacement of brick wall door openings. Background technique [0002] In the daily decoration or remodeling process, in order to meet the new design scheme, it is often necessary to open new door openings on non-load-bearing brick walls, or to change the size of existing door openings, or to move existing door openings. The current general construction method is to knock off a part of the brick wall, and then build a new door opening on the original body of wall with bricks and cement as required. However, this newly formed door opening frame is not easy to be firmly combined with the original body of wall, and it is easy to crack between the frame and the body of wall, which affects the aesthetics of the body of wall. Contents of the invention [0003] The invention mainly solves the technical problems existing in the prior art, thereby providing a concrete used fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/08
CPCC04B28/08C04B14/06C04B14/022C04B20/008C04B24/2641C04B24/383C04B24/2652C04B24/38C04B22/14C04B24/14
Inventor 万东方刘志平
Owner 重庆驰旭混凝土有限公司
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