Low-cost and high-strength waterproof desulfurized gypsum board and production method thereof

A desulfurized gypsum, high-strength technology, applied in the field of building materials, can solve the problems of limited application fields and development prospects, poor water resistance, etc., and achieve the effects of improving stickiness, reducing costs, and reducing density

Pending Publication Date: 2020-02-25
SHIHEZI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing gypsum board has the problem of poor water resistance, and its strength needs to be improved. Water resistance and strength directly limit its application field and development prospect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In terms of mass percentage, weigh the main ingredients: desulfurized gypsum, aluminate cement, white Portland cement and ordinary Portland cement, of which desulfurized gypsum accounts for 80%, aluminate cement accounts for 10%, and white portland cement Cement accounts for 7%, ordinary Portland cement accounts for 3%, a total of 100%.

[0030] In terms of mass percentage, weigh the auxiliary materials: expanded perlite, gypsum retarder (citric acid), fiber (glass fiber), water reducer (polycarboxylic acid superplasticizer), dispersant (construction quick sol powder) and Water retention agent (hydroxypropyl methyl cellulose), where the amount of expanded perlite is 2.3% of the main material, the amount of citric acid is 0.08% of the main material, and the amount of glass fiber is 1.6% of the main material. The amount of acid superplasticizer is 1.2% of the main ingredient, the amount of building quick sol powder is 0.65% of the main ingredient, and the amount of hydroxypr...

Embodiment 2

[0043] In terms of mass percentage, weigh the main ingredients: desulfurized gypsum, aluminate cement, white Portland cement and ordinary Portland cement, of which desulfurized gypsum accounts for 70%, aluminate cement accounts for 15%, and white portland cement Cement accounts for 10.5% and ordinary Portland cement accounts for 4.5%.

[0044] In terms of mass percentage, weigh the auxiliary materials: expanded perlite, gypsum retarder (citric acid), fiber (glass fiber), water reducer (polycarboxylic acid superplasticizer), dispersant (construction quick sol powder) and Water-retaining agent (hydroxypropyl methyl cellulose), in which the amount of expanded perlite is 1.7% of the main material, the amount of citric acid is 0.08% of the main material, and the amount of glass fiber is 1.2% of the main material. The amount of acid superplasticizer is 0.8% of the main ingredient, the amount of building quick sol powder is 0.35% of the main ingredient, and the amount of hydroxypropyl m...

Embodiment 3

[0051] In terms of mass percentage, weigh the main ingredients: desulfurized gypsum, aluminate cement, white Portland cement and ordinary Portland cement, of which desulphurized gypsum accounts for 65%, aluminate cement + white Portland cement + ordinary Portland cement 35%.

[0052] In terms of mass percentage, weigh the auxiliary materials: expanded perlite, gypsum retarder (citric acid), fiber (glass fiber), water reducer (polycarboxylic acid superplasticizer), dispersant (construction quick sol powder) and Water retention agent (hydroxypropyl methyl cellulose), where the amount of expanded perlite is 1.4% of the main material, the amount of citric acid is 0.08% of the main material, the amount of glass fiber is 1.0% of the main material, polycarboxylate The amount of acid superplasticizer is 0.6% of the main ingredient, the amount of building quick sol powder is 0.2% of the main ingredient, and the amount of hydroxypropyl methylcellulose is 0.1% of the main ingredient.

[0053...

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Abstract

The invention discloses a low-cost and high-strength waterproof desulfurized gypsum board and a production method thereof. The gypsum board is produced from a main material, an auxiliary material anda proper amount of water, the main material is composed of desulfurized gypsum, aluminate cement, white Portland cement and ordinary Portland cement, and the content of the desulfurized gypsum in themain material is 65-80 wt%; and the auxiliary material comprises expanded perlite, a gypsum retarder, fibers, a water reducer, a dispersant and a water retaining agent. The gypsum board and the production method have the following advantages: (1) after the aluminate cement, white Portland cement and ordinary Portland cement are blended together, the gypsum board does not collapse after being soaked in water, the waterproof property of the gypsum board is improved, and the problem of poor waterproof property of an existing gypsum board is solved; (2) the expanded perlite and the fibers are added, so that the density of the gypsum board is reduced, the strength and the crack resistance of the gypsum board are improved, and the cost is also reduced; and (3) the water reducer is added, so that the later viscous phenomenon of the gypsum board is improved, and the strength of the gypsum board is increased.

Description

Technical field [0001] The invention relates to a desulfurized gypsum board and a preparation method thereof, in particular to a low-cost high-strength water-resistant desulfurized gypsum board and a preparation method thereof, and belongs to the technical field of building materials. Background technique [0002] Gypsum board is a board made of gypsum as the main material. It has the advantages of low energy consumption, light weight, excellent fire resistance, good decorative functions, good constructability, and comfortable living functions. It has a wide range of advantages in the construction industry. application. [0003] However, the existing gypsum board has the problem of poor water resistance, and its strength needs to be improved. The water resistance and strength directly limit its application field and development prospects. Summary of the invention [0004] In order to solve the shortcomings of the prior art, the purpose of the present invention is to provide a low-c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B111/27
CPCC04B28/06C04B2201/20C04B2201/50C04B2111/00017C04B2111/27C04B11/264C04B7/02C04B14/185C04B24/06C04B14/42C04B2103/302C04B2103/408C04B24/383
Inventor 李元琦李刚马玉薇汤骅赵红艳王爱芹杨慧君王玉雪于雪霞
Owner SHIHEZI UNIVERSITY
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