Environment-protecting high-pressure no-baking ardealite brick and its making process

A technology of gypsum bricks and phosphogypsum, which is applied in the field of non-fired phosphogypsum bricks and its manufacturing, can solve the problems of high cost of collecting and transporting raw materials, high final cost, complicated process, etc., and achieve low cost, long service life and excellent production process. simple effect

Inactive Publication Date: 2005-09-28
德阳市智源新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

The disadvantage is: the brick must use cement, which is actually a concrete product, and must be steamed, the process is complicated, and the cost is high
The disadvantage is that it is difficult to have fly ash, ste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] 1. Preparation of liquid phase adhesive

[0026] According to the following table two parts by weight batching:

[0027] ingredients

[0028] Mix quartz, feldspar and clay, eutectically boil to form a liquid phase, then naturally cool to room temperature, then add reduced orthophosphoric acid, stir and mix evenly, and set aside.

[0029] 2. Phosphogypsum bricks

[0030] According to the following table three ingredients:

[0031] ingredients

[0032] Proportioning parts in above-mentioned embodiment 1-10 are all parts by weight, and solid-phase adhesive used is any one in calcium oxide, sodium carbonate, calcium carbonate, aluminum oxide, also can be wherein any several, any proportion The sand used is any one of foundry steel slag sand, river sand and sandstone, or a mixture of two or more in any proportion. When using foundry steel slag or sandstone, it should be pulverized first. The brick making steps are:

[0033] First sift the sand;

[00...

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PUM

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Abstract

The environment-protecting high pressure no-baking ardialite brick is made with the material including sand in 100 weight powder, ardialite in 40-60 weight portions, solid phase adhesive in 10-20 weight portions, liquid phase adhesive in 0.1-0.5 weight portions, and sodium humate in 0.5-2 weight portions. The making process includes mixing all the material through stirring, molding the mixture in mold inside brick making machine at pressure not lower than 40 MPa, demolding and curing. The ardialite brick has high and stable strength, long service life and low cost.

Description

technical field [0001] The invention relates to a building brick, in particular to an unfired phosphogypsum brick and a manufacturing method thereof. Background technique [0002] Because clay bricks consume a large amount of non-renewable land resources, they are no longer in line with the national industrial policy. The building materials industry has sought other alternative raw materials such as sandstone, coal gangue, fly ash, phosphogypsum, carbide slag, and foundry steel slag to produce building bricks. However, due to the raw material formula or the production process, either the product quality is not good enough, or the cost is high, which is not economical. [0003] The "environmental protection non-fired sand brick and its preparation method" disclosed by the Chinese patent (publication number CN1272467A) is to mix cement, sand, stone powder and water in a certain proportion, press and form it under a certain pressure through a brick press, and then steam it into...

Claims

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Application Information

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IPC IPC(8): C04B14/06C04B28/14
Inventor 李忠金谌天谢琴
Owner 德阳市智源新材料有限公司
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