Light cast-in-situs concrete wallboard

A lightweight concrete and wallboard technology, applied in the direction of walls, building components, sustainable waste treatment, etc., can solve the complex connection between prefabricated wallboards and load-bearing components, easy cracks between wallboards and load-bearing components, affecting building quality and life. and other problems, to achieve the effect of significant thermal insulation effect, energy saving and small deformation.

Inactive Publication Date: 2004-09-22
张英保
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lightweight concrete wall panels generally include prefabricated and cast-in-place. Prefabricated lightweight concrete wall panels are produced in a factory and assembled on site. The production process is relatively complicated, and the requirements for production equipment are high. It is easy to cause cracks in the board joints, causing water seepage, which affects the quality and life of the building. The connection between the prefabricated wall panels and the load-bearing components is relatively complicated. The board itself is prone to cracking and deformation, and the joint between the wall board and the load-bearing member is prone to cracks, resulting in water seepage, and the external insulation layer is not easy to install

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The cast-in-situ lightweight concrete wallboard of the present invention includes a wallboard body and a layer of welded steel mesh placed therein, and the optimum weights of the components made into the wallboard body are as follows, based on the total amount of the mixture in one cubic meter:

[0045] Water: 200kg / m 3 ,

[0046] Cement: 42.5# Portland cement, 250kg / m 3 ,

[0047] Admixture: Among them, fly ash: 150kg / m 3 ,

[0048] Slag powder: 80kg / m 3 ,

[0049] Silicon powder: 20kg / m 3 ,

[0050] Water reducing agent: 8kg / m 3 ,

[0051] Polypropylene fiber (PPY): 1kg / m 3 ,

[0052] Alkali-resistant plastic-coated glass fiber chopped strands: 2kg / m 3 ,

[0053] Cement modified polymer resin emulsion: 5kg / m 3 ,

[0054] Ceramsite: 400kg / m 3 ,

[0055] Pottery sand: 300kg / m 3 ,

[0056] Medium sand: 100kg / m 3 ,

[0057] Wherein, the weight ratio of water to cementitious material is 0.4.

[0058] The individual componen...

Embodiment 2

[0062] The cast-in-situ lightweight concrete wallboard of the present invention comprises a wallboard body and two layers of steel welded meshes arranged at intervals therein, and the weights of the components made into the wallboard body are as follows, based on the total amount of one cubic meter of mixture:

[0063] Water: 250kg / m 3 ,

[0064] Cement: 32.5# Portland cement, 300kg / m 3 ,

[0065] Admixture: Among them, fly ash: 150kg / m 3 ,

[0066] Slag powder: 50kg / m 3 ,

[0067] Water reducing agent: 5kg / m 3 ,

[0068] Polypropylene fiber (PPY): 2kg / m 3 ,

[0069] Alkali-resistant plastic-coated glass fiber chopped strands: 1kg / m 3 ,

[0070] Ceramsite: 500kg / m 3 ,

[0071] Pottery sand: 400kg / m 3 ,

[0072] Medium sand: 100kg / m 3 .

[0073] Wherein, the weight ratio of water to cementitious material is 0.5.

[0074] The individual components described above to make lightweight concrete wall panels are commercially available.

[...

Embodiment 3

[0077] The cast-in-situ lightweight concrete wallboard of the present invention comprises a wallboard body and a welded steel mesh placed therein, and the weights of the components made into the wallboard body are as follows, in the total amount of one cubic meter of the mixture:

[0078] Water: 200kg / m 3 ,

[0079] Cement: 42.5# ordinary Portland cement, 250kg / m 3 ,

[0080] Admixture: Among them, fly ash: 150kg / m 3 ,

[0081] Silicon powder: 30kg / m 3 ,

[0082] Water reducing agent: 10kg / m 3 ,

[0083] Polypropylene fiber (PPY): 0.5kg / m 3 ,

[0084] Fiberglass mesh: 1kg / m 3 ,

[0085] Modified cement polymer dry powder latex: 10kg / m 3 ,

[0086] Ceramsite: 400kg / m 3 ,

[0087] Pottery sand: 400kg / m 3 .

[0088] The individual components described above to make lightweight concrete wall panels are commercially available.

[0089] The production process of the wallboard is the same as that of Example 1. After curing and forming, it can be made ...

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Abstract

A light concrete wall slab cast in-situ is composed of main body and welded reinforcing steel bar net in said main body. Said main body is made up of water, cement, powdered coal ash, slag powder, silicon powder, efficient composite water-reducing agent, polypropylene fibres, glass fibre fabric or alkali-resistant plastic-coated glass staple, modified cement polymer emulsion (or powder), haydite, and sand. Its advantages are light weight, high strength, low shrinkage, not deforming and cracking, and low cost.

Description

technical field [0001] The invention relates to a building material, in particular to a cast-in-place lightweight thin-layer concrete wall panel. Background technique [0002] In recent years, because clay solid bricks are banned and gradually eliminated, many new building wall materials have appeared, especially the application of lightweight concrete is being promoted and used. Lightweight concrete wall panels generally have prefabricated and cast-in-place, prefabricated lightweight concrete wall panels, which are factory-produced and assembled on site. It is easy to cause cracks in the board seams, resulting in water seepage, affecting the quality and life of the building. The connection between the prefabricated wallboard and the load-bearing components is more complicated. The board itself is prone to cracking and deformation, and the joint between the wall board and the load-bearing member is prone to cracks, resulting in water seepage, and the external thermal insula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B28/04E04B2/84
CPCC04B2111/343C04B28/02Y02W30/91C04B14/06C04B14/12C04B14/42C04B16/0633C04B18/06C04B18/141C04B20/1029C04B22/02C04B24/24C04B32/02C04B2103/302
Inventor 张英保
Owner 张英保
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