Gypsum substrate render material

A gypsum-based and gypsum technology, applied in the field of building plastering gypsum, can solve problems such as affecting building quality, falling off, cracking, etc., and achieve the effects of simple production process, light weight and convenient construction

Inactive Publication Date: 2004-03-17
NANJING EFFUL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original painting materials such as cement mortar, mixed mortar, etc., cannot adapt to the surface painting of the above-mentioned new wall materials, and there will be hollowing, crackin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1:

[0023] Take 99.1 kg of beta gypsum and 0.9 kg of citric acid powder and mix uniformly to obtain the stucco material of the present invention. At the same time, 0.5 kg of hydroxypropyl methylcellulose and / or 0.2 kg of polyvinyl alcohol 2488 and / or 30 kg of lime can be added, and then mixed together uniformly.

Example Embodiment

[0024] Example 2:

[0025] Take 99.5 kg of beta gypsum and 0.5 kg of sodium citrate powder and mix uniformly to obtain the stucco material of the present invention. At the same time, 0.1 kg of hydroxypropyl methylcellulose and / or 0.9 kg of polyethylene glycol acetate and / or 10 kg of calcite powder can be added, and then mixed together uniformly.

Example Embodiment

[0026] Example 3;

[0027] Take 99.9 kg of beta gypsum and 0.1 kg of calcium citrate powder and mix uniformly to obtain the stucco material of the present invention. At the same time, 0.9 kg of hydroxypropyl methylcellulose and / or 0.6 kg of polyvinyl alcohol 2488 and / or 50 kg of titanium dioxide can be added, and then mixed together uniformly.

[0028] When in use, the plaster-based plastering slurry is obtained by directly mixing the plastering material of the present invention with water, which is suitable for plastering on the interior and exterior walls of construction projects, and solves the phenomena of hollowing, cracking, falling off and the like.

[0029] The present invention uses β gypsum (β-CaSO 4 ·1 / 2H 2 O), a new type of building material composed of lime, coagulant, water-retaining agent, thickener, etc., which is mainly used for stucco materials for interior and exterior walls of construction projects. The key technology is to select reasonable fillers, coagulants...

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PUM

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Abstract

The gypsum-based whitewash material consists of beta-gypsum with beta-CaSO4.1/2H2O as main component 99-99.9 wt% and anhydrous citric acid or its salt as coagulation regulator 0.1-1 wt%. The presentinvention has strong adhering capacity, and can inhibit the shrinkage and cracking in whitewashing. It has excellent surface decoration performance, fireproof performance and heat insulating performance. It has simple production process, low production cost and light weight.

Description

technical field [0001] The invention relates to a building plastering material, in particular to a building plastering gypsum. Background technique [0002] At present, in the construction industry, the country has banned the use of clay solid bricks, and instead use new wall materials such as blocks and plates. The original painting materials such as cement mortar and mixed mortar cannot adapt to the surface painting of the above-mentioned new wall materials, and there will be hollowing, cracking, falling off and other phenomena, which will affect the building quality. But up to the present, also do not have a kind of ideal and applicable building plastering material with novel wall material. Contents of the invention [0003] The purpose of the present invention is to solve the above problems and propose a gypsum-based plastering material with strong cohesive force, convenient construction and guaranteed building quality. [0004] Technical solution for the purpose of ...

Claims

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Application Information

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IPC IPC(8): C04B24/04C04B24/24C04B24/38C04B28/14
Inventor 万建东唐绍林
Owner NANJING EFFUL
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