Lightweight plastering gypsum and preparation method thereof

A technology for plastering gypsum and its production method, which is applied in the field of plastering gypsum processing, and can solve the problems of affecting normal use, short service life, powder falling, etc., and achieve the effects of saving time and cost, improving service life, and not being easy to pulverize

Inactive Publication Date: 2018-12-07
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 lightweight plastering gypsum often has cracking, hollowing, powder falling and other phenomena during use, which leads to its short service life and affects its normal use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A lightweight plastering gypsum, including the following raw materials: 500 kg of phosphogypsum, 450 kg of heavy calcium, 50 kg of glass beads, 0.3 kg of PE gypsum retarder, 2 kg of cellulose H620, starch ether 0.3 kg.

[0016] The preparation method of the lightweight plastering gypsum comprises the following steps: (1) taking the above-mentioned weight of PE gypsum retarder, cellulose and starch ether and putting them into a mixer to stir evenly for later use; (2) taking the above-mentioned weight of glass beads Crush the crushed glass beads to 60 meshes; (3) Take the above weight of phosphogypsum and heavy calcium and the crushed glass beads and put them into a mixer for stirring at a stirring speed of 600r / min; (4) Combine the steps ( 1) The raw materials that have been stirred and the raw materials that have been stirred in step (3) are put into a blender to mix and stir, the stirring speed is 650r / min, and the stirring time is 20min.

Embodiment 2

[0018] A lightweight plastering gypsum, including the following raw materials: 450 kg of phosphogypsum, 400 kg of heavy calcium, 45 kg of glass beads, 0.2 kg of PE gypsum retarder, 1 kg of cellulose H620, starch ether 0.2 kg.

[0019] The preparation method of the lightweight plastering gypsum comprises the following steps: (1) taking the above-mentioned weight of PE gypsum retarder, cellulose and starch ether and putting them into a mixer to stir evenly for later use; (2) taking the above-mentioned weight of glass beads Crush the crushed glass beads to 60 meshes; (3) Take the above weight of phosphogypsum and heavy calcium and the crushed glass beads and put them into a mixer for stirring at a stirring speed of 600r / min; (4) Combine the steps ( 1) The raw materials that have been stirred and the raw materials that have been stirred in step (3) are put into a blender to mix and stir, the stirring speed is 650r / min, and the stirring time is 20min.

Embodiment 3

[0021] A lightweight plastering gypsum, including the following raw materials: 550 kg of phosphogypsum, 500 kg of heavy calcium, 55 kg of glass beads, 0.4 kg of PE gypsum retarder, 3 kg of cellulose H620, starch ether 0.4 kg.

[0022] The preparation method of the lightweight plastering gypsum comprises the following steps: (1) taking the above-mentioned weight of PE gypsum retarder, cellulose and starch ether and putting them into a mixer to stir evenly for later use; (2) taking the above-mentioned weight of glass beads Crush the crushed glass beads to 60 meshes; (3) Take the above weight of phosphogypsum and heavy calcium and the crushed glass beads and put them into a mixer for stirring at a stirring speed of 600r / min; (4) Combine the steps ( 1) The raw materials that have been stirred and the raw materials that have been stirred in step (3) are put into a blender to mix and stir, the stirring speed is 650r / min, and the stirring time is 20min.

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Abstract

The invention discloses lightweight plastering gypsum. The lightweight plastering gypsum comprises the following raw materials by weight: 450-550kg of ardealite, 400-500kg of heavy calcium, 45-55kg ofglass bead, 0.2-0.4kg of PE gypsum retarder, 1-3kg of cellulose H620 and 0.2-0.4kg of starch ether. Compared with the prior art, the lightweight plastering gypsum disclosed by the invention has the beneficial technical effects that the lightweight plastering gypsum has the advantages of durability, large binding strength, difficult powdering, no cracking, no hollowing and no powder fall and the like, the use in the building industry can be better met and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of plastering gypsum processing, in particular to a lightweight plastering gypsum and a preparation method thereof. Background technique [0002] Gypsum is a monoclinic mineral, a hydrate whose main chemical composition is calcium sulfate. Gypsum is a versatile industrial and construction material. It can be used in cement retarder, gypsum building products, model making, medical food additive, sulfuric acid production, paper filler, paint filler, etc. The microporous structure and heating dehydration of gypsum and its products make it have excellent sound insulation, heat insulation and fireproof performance. my country is a country rich in gypsum resources, with natural gypsum reserves of more than 60 billion tons, ranking first in the world. my country is rich in industrial by-product gypsum. According to statistics, the total amount of desulfurized gypsum and phosphogypsum produced by thermal power in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B111/40
CPCC04B28/143C04B2111/40C04B14/28C04B18/027C04B24/383C04B24/38C04B24/2611
Inventor 陈台福
Owner 贵州砂浆博士科技有限公司
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