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Lightweight building gypsum building block and production method thereof

A technology for building gypsum and building blocks, which is applied in the field of building materials, can solve the problems that gypsum is not well utilized, pollutes the environment, etc., and achieves the effects of being beneficial to environmental protection, uniform distribution of pores, and improving compressive strength.

Inactive Publication Date: 2017-11-17
南充市高坪区江峰石膏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a large gypsum is not well utilized, forming gypsum slag mountains and seriously polluting the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1, a kind of lightweight construction gypsum block is formed by mixing raw materials in the following weight ratio: said comprehensive foaming agent is prepared by the following components by weight: phosphogypsum 75, fly ash 15, water 45, Cellulose 1.0, comprehensive foam retarder 8. Said comprehensive foaming agent is prepared by the following components in parts by weight: plant protein foaming agent 2, mud putty 90, aluminum powder 5, gelatin powder 2. Said silt ash is pulverized or made of 80-120 mesh after sintering the silt at the bottom of sewers or rivers and lakes. The production method of the present invention is as follows: (1) first accurately weigh desulfurized gypsum, phosphogypsum, and cellulose and place them in a mixer to mix and stir evenly for later use; (2) accurately weigh the comprehensive foaming buffer and water, and mix the above compositions Stir for two to five minutes until uniform; (3) Mix the mixture of step 2 and step 1 and co...

Embodiment 2

[0010] Embodiment 2, a kind of lightweight construction gypsum block is formed by mixing raw materials in the following weight ratio: said comprehensive foaming agent is formulated by weight of the following components: phosphogypsum 85, fly ash 10, water 40, Cellulose 0.8, comprehensive foam retarder 9.

[0011] Said comprehensive foaming agent is prepared from the following components in weight ratio: 5 vegetable protein foaming agents, 80 mud putty, 2 aluminum powder, and 1 gelatin powder. Its production method is with embodiment 1.

Embodiment 3

[0012] Embodiment 3, a kind of lightweight construction gypsum block is formed by mixing raw materials in the following weight ratio: said comprehensive foaming agent is prepared by the following components by weight: phosphogypsum 80, fly ash 12, water 32, Cellulose 0.5, comprehensive foam retarder 10.

[0013] Said comprehensive foaming agent is prepared from the following components in weight ratio: 3 vegetable protein foaming agents, 85% of mud ash, 3% of aluminum powder, and 1.5% of gelatin powder. Its production method is with embodiment 1.

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Abstract

The invention discloses a lightweight building gypsum building block and a production method thereof. The lightweight building gypsum building block is molded by mixing the following raw materials in parts by weight: 75-85 parts of phosphogypsum, 10-15 parts of fly ash, 32-45 parts of water, 0.5-1.0 parts of cellulose, and 8-10 parts of a comprehensive foaming delayed coagulant. Compared with the prior art, the gypsum solidification time is 8-12 min, the production technology requirement of the gypsum building block can be satisfied, and the smooth operation of the production technology is guaranteed. The aperture of a foaming plasterboard is 0.1-0.18 cm, the pore distribution is uniform, the enough intensity and breaking-resistant strength of the plasterboard can be guaranteed, and the surface is flat and smooth. Through multiple tests, the compressive strength of the product is 3.9-4.1 MPa, the flexural intensity is 2.0-2.1 MPa, the softening coefficient is 0.68, the unit solid weight is decreased by 20-30%, the heat conduction coefficient is between 0.086W( / m.k) and 0.13W( / m.k), sound insulation and heat insulation performances are obviously increased, through detection, the compressive strength is increased by 18.3%, and the flexural intensity is increased by 51.2%.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a lightweight building gypsum block and a production method thereof. Background technique [0002] In recent years, with the development of industrial and agricultural production, people's demand for electricity has increased rapidly, and a large amount of fly ash is produced after coal combustion. At the same time, with the increase in the demand for phosphate fertilizer in agricultural production and the increase in demand for phosphoric acid in industrial production, the production of the above products A large amount of by-product phosphogypsum will be produced. The main component of phosphogypsum is calcium sulfate dihydrate, and the content is generally 70-90%. %, and the cumulative displacement exceeds 100 million tons. Such a large gypsum is not well utilized, forming a mountain of gypsum slag, which seriously pollutes the environment. Industrially developed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/02C04B38/10C04B38/06
CPCC04B28/143C04B2201/32C04B2201/50C04B18/08C04B24/383C04B38/10C04B38/0665C04B38/02C04B38/0051
Inventor 姜尤超
Owner 南充市高坪区江峰石膏有限公司
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