A kind of method that utilizes desulfurized gypsum to prepare lightweight partition board

A lightweight partition board, desulfurization gypsum technology, applied in the application, home appliances, ceramic products and other directions, can solve the problems of consuming magnesite resources, difficult to popularize and apply, and achieve the effects of low cost, simple process and low cost

Active Publication Date: 2016-07-20
湖北久筑新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional partition boards usually use magnesium oxychloride cement composed of magnesium oxide and magnesium chloride solution as the cementing material. The sources of magnesium oxide are concentrated in Haicheng City and Dashiqiao City in Liaoning Province and Laizhou City in Shandong Province in my country. It is obtained by calcination of magnesium ore. On the one hand, it is difficult to popularize and apply it nationwide due to geographical restrictions. On the other hand, it consumes a lot of precious magnesite resources in my country.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step 1. Take 40% desulfurized gypsum and 60% fly ash by weight percentage and mix them as the base material, then add 2% quicklime, 10% cement, and 0.6% naphthalene series to the base material. Water-reducing agent, 2% activator, 0.03% air-entraining agent and 0.3% reinforcing fiber are mixed uniformly and then used for later use. Among them, the desulfurized gypsum is the original desulfurized gypsum after dehydration;

[0022] Step 2. Add 65% water of the total mass of the mixed material to the mixture weighed in step 1 and stir until it becomes a viscous jelly, and add polystyrene foam particles with a total volume of 80% to the jelly and mix Evenly form a viscous paste wet material containing foam particles, set aside;

[0023] Step 3: Inject the wet material prepared in Step 2 into the mold, and after normal pressure or pressure molding, demoulding and maintenance will form the product.

Embodiment 2

[0025] Step 1. Take 60% desulfurized gypsum and 40% fly ash by weight percentage and mix them as the base material, then add 5% quicklime, 15% cement, and 0.8% naphthalene series to the base material. Water reducing agent, 3% activator, 0.01% air-entraining agent and 0.5% reinforcing fiber are mixed evenly for later use. Among them, the desulfurized gypsum is the original desulfurized gypsum after dehydration;

[0026] Step 2. Add 65% water of the total mass of the mixed material to the mixture weighed in step 1 and stir until it becomes a viscous jelly, and add polystyrene foam particles with a total volume of 80% to the jelly and mix Evenly form a viscous paste wet material containing foam particles, set aside;

[0027] Step 3: Inject the wet material prepared in Step 2 into the mold, and after normal pressure or pressure molding, demoulding and maintenance will form the product.

Embodiment 3

[0029] Step 1. Take 50% desulfurized gypsum and 50% fly ash by weight percentage and mix them as a base material, then add 3% quicklime, 12% cement, and 0.7% naphthalene series to the base material. Water-reducing agent, 2.5% activator, 0.02% air-entraining agent and 0.4% reinforcing fiber shall be mixed evenly for later use. Among them, the desulfurized gypsum shall be the original desulfurized gypsum after dehydration;

[0030] Step 2. Add 65% water of the total mass of the mixed material to the mixture weighed in step 1 and stir until it becomes a viscous jelly, and add polystyrene foam particles with a total volume of 80% to the jelly and mix Evenly form a viscous paste wet material containing foam particles, set aside;

[0031] Step 3: Inject the wet material prepared in Step 2 into the mold, and after normal pressure or pressure molding, demoulding and maintenance will form the product.

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PUM

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Abstract

The invention discloses a method for preparing a light partition wall board by utilizing desulfurized gypsum. The method comprises the following steps: in percentage by weight, weighing 40-60 percent of the desulfurized gypsum and 60-40 percent of the desulfurized gypsum; mixing the desulfurized gypsum to obtain a mixture serving as a base material; adding 2-5 percent of quick lime, 10-15 percent of cement, 0.6-0.8 percent of a naphthalene water reducer, 2-3 percent of a triggering agent, 0-0.03 percent of an air entraining agent and 0.3-0.5 percent of a reinforcing fiber into the base material based on the total mass of the base material; uniformly mixing; adding water of which the mass is 65% of the total mass of the mixed materials into the mixture; stirring and simultaneously adding 80% of polystyrene foam particles based on the total volume; uniformly mixing to obtain a thick pasty wet material containing foam particles; filling the wet material into a mold; and demolding and maintaining to form the light partition wall board. By adopting the desulfurized gypsum as a cementing material, a great amount of solid wastes such as the desulfurized gypsum are consumed, and the product is good in water resistance, low in investment and low in cost.

Description

technical field [0001] The invention relates to the field of lightweight building materials for partition walls, in particular to a method for preparing lightweight partition boards using desulfurized gypsum. Background technique [0002] The reform of wall materials is an important part of protecting land resources, saving energy, comprehensively utilizing resources, and improving the environment. Promoting the use of new wall materials is one of the important ways to develop a low-carbon economy, realize building energy conservation, and achieve sustainable social development. Traditional partition boards usually use magnesium oxychloride cement composed of magnesium oxide and magnesium chloride solution as the cementing material. The sources of magnesium oxide are concentrated in Haicheng City and Dashiqiao City in Liaoning Province and Laizhou City in Shandong Province in my country. Magnesite is obtained by calcination. On the one hand, due to geographical limitations, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B28/14
Inventor 郭长顺娄文献
Owner 湖北久筑新材料科技有限公司
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