Lightweight gypsum block and its preparation method

A gypsum block and lightweight technology, applied in the field of lightweight gypsum block and its preparation, can solve the problems of poor sound insulation and heat insulation, high cost, large quality, etc., achieve good seismic performance, enhanced strength and water resistance, reduced The effect of production costs

Inactive Publication Date: 2014-05-28
SHANGHAI YUPEI SPECIAL BUILDING MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the purposes of the present invention is to overcome the problems of high quality, poor sound insulation and heat insulation, and high cost of traditional partition wall materials, and provide a new type of lightweight partition wall with industrial solid waste—desulfurized gypsum and ultrafine steel slag powder as main raw materials. quality gypsum block

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In this embodiment, the preparation of 100 kg of gypsum block mixture is taken as an example, and its preparation method is as follows.

[0032] Weigh the ingredients according to the prescribed ratio, and the amount of each raw material is:

[0033] Desulfurization gypsum 770kg

[0034] Ultra-fine steel slag powder 115kg

[0035] Perlite 115kg

[0036] Steel slag activator 10.5kg

[0037] PP fiber 3.5kg

[0038] Retarder 0.5kg

[0039] Foaming agent 0.33kg

[0040] (1) Weigh the ingredients according to the above formula, and according to the traditional process, put the above raw materials (except the foaming agent) into the mixer in turn, stir and mix well to form a mixture.

[0041] (2) In the mixer, first add an appropriate amount of water, then add a foaming agent, and stir quickly for 5 minutes, then add the above-mentioned mixture, and after fully stirring, it can be poured and maintained to obtain a lightweight gypsum masonry Piece.

[0042] The new lig...

Embodiment 2

[0044] In this embodiment, the preparation of 100 kg of gypsum block mixture is taken as an example, and its preparation method is as follows.

[0045] Weigh the ingredients according to the prescribed ratio, and the amount of each raw material is:

[0046] Desulfurization gypsum 780kg

[0047] Ultra-fine steel slag powder 120kg

[0048] Perlite 100kg

[0049] Steel slag activator 11kg

[0050] PP fiber 3kg

[0051] Retarder 0.5kg

[0052] Foaming agent 0.38kg

[0053] (1) Weigh the ingredients according to the above formula, and according to the traditional process, put the above raw materials (except the foaming agent) into the mixer in turn, stir and mix well to form a mixture.

[0054] (2) In the mixer, first add an appropriate amount of water, then add a foaming agent, and stir quickly for 5 minutes, then add the above-mentioned mixture, and after fully stirring, it can be poured and maintained to obtain a lightweight gypsum masonry Piece.

[0055] The new lightwe...

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Abstract

The invention relates to a lightweight gypsum block and its preparation method. The block comprises the following components, by weight, 70-80% of desulfurized gypsum, 10-15% of ultrafine steel slag powder, 10-15% of perlite, 1-1.5% of a steel slag excitant, 0.3-0.5% of PP fiber, 0.05% of a retarder, 0.01-0.05% of a foaming agent and the balance water. According to the invention, industrial waste residues such as desulfurized gypsum, steel slag and the like are used as main raw materials to prepare the gypsum block, thus opening up a new way for comprehensive utilization of industrial solid wastes. Production cost of the gypsum block is reduced, and dual effects of environmental protection and waste utilization are achieved. Due to the addition of the ultrafine steel slag powder and the excitant, strength and water resistance of the product are enhanced. The prepared gypsum block has effects of light weight, sound insulation, thermal insulation, moisture retention and the like, and has good anti-seismic property. According to the invention, a new way for resource utilization of the solid wastes desulfurized gypsum and steel slag is opened up, natural environment is protected, and resources and energy are saved.

Description

technical field [0001] The invention relates to a lightweight gypsum block and a preparation method thereof, in particular to a novel lightweight gypsum block prepared by using desulfurized gypsum, ultrafine steel slag micropowder and other industrial solid wastes as raw materials and a preparation method thereof. Background technique [0002] Desulfurization gypsum is a by-product of flue gas desulfurization by wet lime / limestone-gypsum method in coal-fired power plants, while steel slag is an industrial solid waste discharged during steelmaking. With the rapid development of my country's national economy, the demand for electricity and steel has increased rapidly, which has also resulted in the rapid accumulation of industrial waste such as desulfurized gypsum and steel slag. However, due to the insufficient utilization of industrial waste in my country, a large amount of desulfurized gypsum and steel slag have accumulated, which not only occupies a large amount of land re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/02C04B18/14
CPCY02W30/91
Inventor 马小翠张劲张炎王雪包新华陆文雄
Owner SHANGHAI YUPEI SPECIAL BUILDING MATERIAL
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