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Heavy plastering gypsum and preparation method thereof

A technology for plastering gypsum and a production method, applied in the field of plastering gypsum processing, can solve the problems of short service life, sanding, low bonding strength, etc., and achieve the effects of high popularization and application value, guaranteeing service life and improving production efficiency.

Inactive Publication Date: 2018-11-16
贵州砂浆博士科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used heavy plastering gypsum often has problems such as slow setting time, weak bonding strength, and difficult pulverization during use, which affects normal use.
Moreover, after use, sanding, air bubbles, cracking, hollowing, and powder drop often occur, resulting in a short service life and unable to meet the use requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A heavy plastering gypsum, including the following raw materials: 500 kg of phosphogypsum, 100 kg of three-grade heavy calcium powder, 400 kg of mechanical sand, 0.3 kg of PE gypsum retarder, 2 kg of cellulose H620, 0.3 kg of starch ether and 4 kg of black iron.

[0016] The preparation method of the heavy plastering gypsum comprises the following steps: (1) taking the PE gypsum retarder, cellulose, starch ether and black iron of the above weight and putting them into a mixer to stir evenly for later use; (2) taking half of the above The mechanical sand is crushed and sieved to 100 mesh, and the other half of the mechanical sand is crushed and sieved to 60 mesh; (3) Take the above weight of phosphogypsum and three-grade heavy calcium powder and the crushed mechanical sand in step (2) into the mixer for Stir at a stirring speed of 550r / min; (4) Put the raw materials stirred in step (1) and the raw materials stirred in step (3) into a blender to mix and stir at a stirring...

Embodiment 2

[0018] A heavy plastering gypsum, including the following raw materials: 520 kg of phosphogypsum, 120 kg of three-grade heavy calcium powder, 450 kg of mechanical sand, 0.4 kg of PE gypsum retarder, 3 kg of cellulose H620, 0.4 kg of starch ether and 5 kg of black iron.

[0019] The preparation method of the heavy plastering gypsum comprises the following steps: (1) taking the PE gypsum retarder, cellulose, starch ether and black iron of the above weight and putting them into a mixer to stir evenly for later use; (2) taking half of the above The mechanical sand is crushed and sieved to 100 mesh, and the other half of the mechanical sand is crushed and sieved to 60 mesh; (3) Take the above weight of phosphogypsum and three-grade heavy calcium powder and the crushed mechanical sand in step (2) into the mixer for Stir at a stirring speed of 550r / min; (4) Put the raw materials stirred in step (1) and the raw materials stirred in step (3) into a blender to mix and stir at a stirring...

Embodiment 3

[0021] A heavy plastering gypsum, including the following raw materials: 480 kg of phosphogypsum, 80 kg of three-grade heavy calcium powder, 380 kg of mechanical sand, 0.2 kg of PE gypsum retarder, 1 kg of cellulose H620, 0.2 kg of starch ether and 3 kg of black iron.

[0022] The preparation method of the heavy plastering gypsum comprises the following steps: (1) taking the PE gypsum retarder, cellulose, starch ether and black iron of the above weight and putting them into a mixer to stir evenly for later use; (2) taking half of the above The mechanical sand is crushed and sieved to 100 mesh, and the other half of the mechanical sand is crushed and sieved to 60 mesh; (3) Take the above weight of phosphogypsum and three-grade heavy calcium powder and the crushed mechanical sand in step (2) into the mixer for Stir at a stirring speed of 550r / min; (4) Put the raw materials stirred in step (1) and the raw materials stirred in step (3) into a blender to mix and stir at a stirring ...

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PUM

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Abstract

The invention discloses heavy plastering gypsum. The heavy plastering gypsum comprises the following raw materials by weight: 480 to 520 kg of phosphogypsum, 80 to 120 kg of triple superphosphate powder, 380 to 450 kg of mechanical sand, 0.2 to 0.4 kg of a PE gypsum retarder, 1 to 3 kg of cellulose H620, 0.2 to 0.4 kg of starch ether and 3 to 5 kg black iron. The heavy plastering gypsum has the advantages of firm bonding with a base layer, no hollowing, no falling, no dusting, hydration micro-expansion, no cracking, convenient construction, early strength, rapid hardening, environmental protection, etc., is ensured in service life, satisfies the requirements of normal use of the construction industry and has high promotion and application value.

Description

technical field [0001] The invention relates to the technical field of plastering gypsum processing, in particular to a heavy plastering gypsum and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy, the level of science and technology has been greatly improved, and the technology of the construction industry has also developed rapidly. The traditional mortar plastering process can no longer meet the market demand. These traditional plastering materials have the disadvantages of easy cracking, hollowing, more dust on the ground, and poor bonding performance. Secondly, due to the slow setting and hardening of cement mortar, especially when the temperature is low in winter, the time interval between the plastering process and the final decoration process is half a month or even longer, which has become the biggest obstacle restricting rapid construction. Gypsum is a monoclinic mineral, a hydrate whose main chemical c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14
CPCC04B28/143C04B2111/00482C04B14/28C04B14/06C04B2103/22C04B24/383C04B24/38C04B14/308
Inventor 陈台福
Owner 贵州砂浆博士科技有限公司
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