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High-strength water-proof plaster block containing nonmetal nano material and preparation method thereof

A technology of nano-materials and gypsum blocks, which is applied in the field of gypsum blocks, can solve problems such as failure to popularize and apply, reduce strength, and complicated processes, and achieve the effects of reducing cracks, reducing weight, and increasing toughness

Inactive Publication Date: 2009-09-30
李雨加 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods are either expensive, or reduce the original strength, and the process is complicated in actual production, so they cannot be well popularized and applied.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Pour 45-50 kg of aged hemihydrate gypsum powder into the mixer.

[0029] Pour 3 to 10 kg of natural nano-scale sepiolite powder (dried) (produced in Hunan) into the mixer.

[0030] Pour 3-5 kg ​​of natural nano-scale montmorillonite powder (dried) (produced in Zhejiang) into the mixer.

[0031] Turn on the mixer to disperse the hemihydrate gypsum powder, sepiolite powder and montmorillonite powder evenly, and stop the machine after 3 minutes for standby. This mixture is called composite gypsum powder.

[0032] Pour 40kg of water into the mixing bucket, start the mixing bucket motor, and adjust the speed to 1000 rpm.

[0033] Pour 80-150 grams of hydrogen-containing silicone oil into the rotating water and stir, and at the same time add 0.5-1 gram of octadecyltrimethylammonium chloride, and stir for 2 minutes. Make it well dispersed and stable.

[0034] The prepared composite gypsum powder is slowly poured into the above-mentioned high-speed rotating (1000 rpm) aqueo...

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PUM

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Abstract

The name of the invention is a high-strength waterproof gypsum block containing non-metallic nanomaterials and a preparation method thereof. It belongs to the technical field of building materials. The main purpose is to solve the problems of low water resistance, low strength and limited use of existing common gypsum blocks. Its main features include the following steps: 1. Add 0.3-0.5 parts by weight of hydrogen-containing silicone oil to 35-40 parts by weight of water; 2. Add 0.005-0.01 parts by weight of octadecyltrimethylammonium chloride; 3. Then add 45 to 50 parts by weight of hemihydrate gypsum powder, 3 to 10 parts by weight of sepiolite powder and 3 to 5 parts by weight of montmorillonite powder that are evenly mixed into the liquid; High-strength waterproof gypsum blocks. Advantages: 1. The waterproof effect reaches 2 hours, the water absorption rate is ≤5%, and the conversion coefficient reaches above 0.75; 2. The strength is increased by 2-8 times, and the toughness is increased. The invention is mainly used for frame-type non-load-bearing walls, such as household walls, partition walls, bathrooms, kitchens, toilets, pools, etc.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a gypsum block used for building non-load-bearing inner walls in buildings. Background technique [0002] With the ban on the use of clay bricks, a large number of alternative products have entered the construction market one after another. As an environmentally friendly green building material, gypsum blocks are also rapidly entering the construction industry; the country has also issued the standards for gypsum blocks in the building materials industry of the People's Republic of China accordingly. [0003] Common gypsum blocks currently on the market have low water resistance. With the increase of humidity, the strength of gypsum blocks decreases sharply, and the creep property of materials also gradually increases. Therefore, their use is limited. There are three reasons for the poor water resistance of gypsum. One is that gypsum has a large solubility; the other ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B14/04C04B24/40C04B24/12
CPCC04B28/145C04B2111/27
Inventor 李雨加徐朝富
Owner 李雨加
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