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Construction method for plastering gypsum on indoor fine-decorated wall surface

A technology for plastering gypsum and desulfurization gypsum, which is applied to buildings and building structures, etc., can solve the problems of only a few minutes to ten minutes, fast coagulation and high cost, and can inhibit the growth of crystal nuclei, delay early hydration, and slow down. Moderate setting time

Inactive Publication Date: 2020-08-07
浙江天苑景观建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prominent disadvantage of gypsum building materials is that it sets quickly, and the initial setting time is generally only a few minutes to ten minutes, and quickly loses its plasticity, which brings great inconvenience to the construction and cannot meet the requirements of building construction operation time. The method is to add gypsum retarder to the gypsum material to prolong its setting time
Commonly used gypsum retarders are mainly organic acids, including citric acid, sodium citrate, sodium polyphosphate and proteins; although they can also play a role in regulating the setting time of gypsum materials, the production process of such retarders is complicated , high energy consumption, high cost, greater loss of strength to gypsum materials, and inconvenience to its construction

Method used

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  • Construction method for plastering gypsum on indoor fine-decorated wall surface
  • Construction method for plastering gypsum on indoor fine-decorated wall surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of plastering gypsum for indoor fine decoration wall, which is composed of desulfurized gypsum, lightweight aggregate, calcium enhancer, dispersible latex powder, conditioner and water retention agent, and the ratio of parts by mass is: 46 parts of desulfurized gypsum, 46 parts of lightweight bone 38 parts of material, 6 parts of calcium enhancer, 4 parts of dispersible latex powder, 0.3 part of conditioner, 0.15 part of water retaining agent, anionic emulsifier in an amount of 0.02% of the total amount of stucco gypsum, and the calcium enhancer is calcium oxide and calcium hydroxide, the regulator is ultra-finely crushed yeast cell walls, the water-retaining agent is cellulose ether, the anionic emulsifier is a sulfonate emulsifier, and the lightweight aggregate is vitrified micro Beads, fine sand, zeolite or a combination thereof, with a particle size of 90-120 mesh;

[0042] The preparation method of the ultrafinely pulverized yeast cell wall is as follows: dilu...

Embodiment 2

[0047] A kind of plastering gypsum for indoor fine decoration wall, which is composed of desulfurized gypsum, lightweight aggregate, calcium enhancer, dispersible latex powder, conditioner and water retention agent, and the ratio of parts by mass is: 58 parts of desulfurized gypsum, lightweight bone aggregate 40 parts of material, 5 parts of calcium enhancer, 4.5 parts of dispersible latex powder, 0.4 part of conditioner, 0.25 part of water retaining agent, the addition amount is the anionic emulsifier of 0.04% of the total amount of stucco gypsum, and the calcium increase agent is calcium oxide and calcium hydroxide, the regulator is ultra-finely crushed yeast cell walls, the water-retaining agent is cellulose ether, the anionic emulsifier is a sulfonate emulsifier, and the lightweight aggregate is vitrified micro Beads, fine sand, zeolite or a combination thereof, with a particle size of 90-120 mesh;

[0048] The preparation method of described yeast cell wall is:

[0049] ...

Embodiment 3

[0053] A kind of construction method of indoor refined decoration wall painting gypsum described in embodiment 1 or 2, comprises the following steps:

[0054] (1) Substrate treatment

[0055] Clean the surface of the wall base, repair and fill the plug joints and wire grooves, and smooth the non-reserved bumps or holes;

[0056] (2) Hanging net to smear

[0057] Prepare plaster plaster mortar, mix according to the ratio, add water to adjust to a suitable consistency, use fiber mesh cloth to pave at the intersection of different materials on the wall, the fiber mesh is flattened, the length of the tower connection on both sides is not less than 100cm, and plaster plaster mortar Dot-shaped sticking, the sticking point spacing is 300-500mm;

[0058] (3) Chongjin

[0059] Control the ash cake at both ends of the wall, and then finish punching the bars at both ends of the wall according to the ash cake conditions. According to the punching bars at both ends, pull the wire to fin...

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Abstract

The invention provides indoor fine decoration wall plastering gypsum and a construction method thereof. The plastering gypsum comprises the following components in parts by weight: 40-60 parts of desulfurized gypsum, 30-40 parts of lightweight aggregate, 3-6 parts of a calcifying agent, 2.5-4.5 parts of dispersible latex powder, 0.1-0.4 part of a regulator, 0.05-0.3 part of a water retaining agent. The calcium increasing agent is calcium oxide and calcium hydroxide, the regulator is yeast cell walls which are subjected to superfine grinding, and the water-retaining agent is cellulose ether. The construction method of the plastering gypsum comprises the steps of base treatment, net hanging, screeding and scraping. The gypsum plaster mortar is firmly combined with a substrate, the yeast cellwalls subjected to superfine grinding are used as a regulator, so that the gypsum plaster mortar has a good retarding effect, small strength loss and good water retention capacity, a certain water retention effect is achieved in the gypsum hydration process, the use amount of a water retention agent can be reduced, and the strength loss is further reduced.

Description

technical field [0001] The invention relates to the technical field of wall plastering and gypsum, in particular to a construction method for indoor fine decoration wall plastering and plastering. Background technique [0002] Gypsum material has become a new type of building material commonly used in modern buildings because of its small deformation, good fire resistance and harmlessness to the human body. It has excellent performance, safety, comfort, and environmental protection. The prominent disadvantage of gypsum building materials is that it sets quickly, and the initial setting time is generally only a few minutes to ten minutes, and quickly loses its plasticity, which brings great inconvenience to the construction and cannot meet the requirements of building construction operation time. The method is to add gypsum retarder to the gypsum material to prolong its setting time. Commonly used gypsum retarders are mainly organic acids, including citric acid, sodium citra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14E04F21/04E04F21/02
CPCC04B28/144C04B2111/00482C04B2201/50E04F21/02E04F21/04C04B14/24C04B14/06C04B14/047C04B22/064C04B2103/0057C04B24/00C04B24/383C04B24/16
Inventor 杨旭东金忠
Owner 浙江天苑景观建设有限公司
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