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Ground floor plastering gypsum

A technology for plastering gypsum and bottom layer, applied in the field of bottom layer plastering gypsum, can solve the problems that affect the popularization and use of bottom layer plastering gypsum, the product performance is greatly affected, and the price of fine quartz sand is high, and the shrinkage cracking is suppressed, the construction is convenient and fast, and the setting retardation effect is achieved. Good results

Inactive Publication Date: 2011-09-14
INNER MONGOLIA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the bottom plaster plaster on the market is usually made of building gypsum mixed with fine quartz sand and other additives in a certain proportion. If the supply quality of fine quartz sand is unstable, it will have a great impact on product performance, and the price of fine quartz sand is high, resulting in product costs. High, affecting the popularization and use of the bottom plaster

Method used

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  • Ground floor plastering gypsum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The dosage of each component: 300kg of desulfurized building gypsum, 700kg of aeolian sand, 1.8kg of water-soluble polyvinyl alcohol, 4kg of calcium-based bentonite, 2kg of HPMC7000 hydroxypropyl methylcellulose, and 2kg of animal protein glue.

[0022] Mix with mixing equipment to make a base plaster.

[0023] When the bottom plaster gypsum of the present invention is applied to plastering mortar, it only needs to add water with 25-30% of the mass of the bottom plaster plaster and stir evenly to prepare the plastering mortar, and then the wall surface construction can be carried out.

Embodiment 2

[0025] Amount of each component

[0026] Desulfurization building gypsum 400kg, aeolian sand 600kg, water-soluble polyvinyl alcohol 1.5kg, calcium-based bentonite 4kg, HPMC7000 hydroxypropyl methylcellulose 1.5kg, animal protein glue 3kg.

[0027] Mix with mixing equipment to make a base plaster.

[0028] When the bottom plaster gypsum of the present invention is applied to plastering mortar, it only needs to add water with 25-30% of the mass of the bottom plaster plaster and stir evenly to prepare the plastering mortar, and then the wall surface construction can be carried out.

Embodiment 3

[0030] Amount of each component

[0031] Desulfurization building gypsum 300kg, aeolian sand 700kg, redispersible latex powder composed of vinyl acetate and ethylene copolymer powder 2kg, calcium-based bentonite 4kg, HPMC7000 hydroxypropyl methylcellulose 2kg, animal protein glue 2kg.

[0032] Mix with mixing equipment to make a base plaster.

[0033] When the bottom plaster gypsum of the present invention is applied to plastering mortar, it only needs to add water with 25-30% of the mass of the bottom plaster plaster and stir evenly to prepare the plastering mortar, and then the wall surface construction can be carried out.

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Abstract

The invention discloses a preparation method of a ground floor plastering gypsum, which is improvement of the ground floor plastering gypsum. The ground floor plastering gypsum is prepared mainly by the following ingredients according to weight percentage: 30-50% of desulfurization building gypsum, 50-70% of fine sand, 0.01-0.04% of binder, 0.015-0.05% of water retaining agent and 0.01-0.05% of retarder. The ground floor plastering gypsum is strong in cohesive force, good in water resistance and low in cost, and does not crack, thus being an ideal choice for replacing traditional plastering materials.

Description

technical field [0001] The invention relates to a bottom plaster plaster, which belongs to the technical field of comprehensive utilization of building materials and solid industrial waste. Background technique [0002] Plastering gypsum is an air-hardening cementitious material made of building gypsum as the main component and mixed with various admixtures and aggregates. It is a new type of plastering material. , Good volume stability, moisture absorption, fire prevention, light weight and other advantages, and overcome the shortcomings of building gypsum, such as too fast setting speed, high viscosity and inconvenient plastering operation, etc., and it is more and more widely used. At present, the bottom plaster plaster on the market is usually made of building gypsum mixed with fine quartz sand and other additives in a certain proportion. If the supply quality of fine quartz sand is unstable, it will have a great impact on product performance, and the price of fine quart...

Claims

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Application Information

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IPC IPC(8): C04B28/14
CPCC04B28/144C04B14/068C04B14/104C04B20/0076C04B24/14C04B24/2623C04B24/383C04B24/26C04B2103/465C04B2103/0057
Inventor 张金山赵俊梅
Owner INNER MONGOLIA UNIV OF SCI & TECH
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