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Self-leveling mortar and preparation method thereof

A self-leveling mortar and water-reducing agent technology, applied in the field of building materials, can solve the problems of hindered popularization and application, high application cost, and slow development, and achieve the effects of improving overall performance, improving decoration quality, and saving labor costs

Pending Publication Date: 2022-01-21
湖南华材友邦科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most manufacturers use building gypsum to prepare, and rely on increasing the amount of chemical additives to ensure that the corresponding performance requirements are met. The cost of additives accounts for about two-thirds of the production cost of self-leveling gypsum, which makes the application cost of self-leveling gypsum higher than that of cement mortar. Promotion Application is hindered and development is slow

Method used

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  • Self-leveling mortar and preparation method thereof
  • Self-leveling mortar and preparation method thereof
  • Self-leveling mortar and preparation method thereof

Examples

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preparation example Construction

[0024] A preparation method of self-leveling mortar, comprising:

[0025] Step 1. Add high-strength gypsum powder, light calcium powder, heavy calcium powder, Portland cement, high alumina cement, and quartz sand into the gravity-free powder mixer in sequence, and stir for 10 minutes;

[0026] Step 2: Add cellulose ether, water reducer, dispersant, powdery adhesive, and gypsum retarder in sequence, and continue to stir for 30 minutes until evenly stirred.

[0027] The stirring speed is 200-300r / min.

Embodiment 1

[0029] A self-leveling mortar, using 450kg of high-strength gypsum powder, 100kg of light calcium powder, 50kg of heavy calcium powder, 100kg of Portland cement, 50kg of high alumina cement, 233kg of quartz sand, 1kg of cellulose ether, 3kg of water reducing agent, and 2kg of dispersant , powdered adhesive 10kg, gypsum retarder 1kg.

[0030] A preparation method of self-leveling mortar, comprising:

[0031] Step 1. Add high-strength gypsum powder, light calcium powder, heavy calcium powder, Portland cement, high alumina cement, and quartz sand into the gravity-free powder mixer in sequence, and stir for 10 minutes;

[0032] Step 2: Add cellulose ether, water reducer, dispersant, powdery adhesive, and gypsum retarder in sequence, and continue to stir for 30 minutes until evenly stirred.

[0033] The stirring speed is 250r / min.

Embodiment 2

[0035] A self-leveling mortar, using 420kg of high-strength gypsum powder, 120kg of light calcium powder, 60kg of heavy calcium powder, 100kg of Portland cement, 60kg of high alumina cement, 223kg of quartz sand, 1kg of cellulose ether, 2.5kg of water reducing agent, and dispersant 2.5kg, powdered adhesive 10kg, gypsum retarder 1kg.

[0036] A preparation method of self-leveling mortar, comprising:

[0037] Step 1. Add high-strength gypsum powder, light calcium powder, heavy calcium powder, Portland cement, high alumina cement, and quartz sand into the gravity-free powder mixer in sequence, and stir for 15 minutes;

[0038] Step 2: Add cellulose ether, water reducer, dispersant, powdery adhesive, and gypsum retarder in sequence, and continue stirring for 35 minutes until the mixture is uniform.

[0039] The stirring speed is 260r / min.

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Abstract

The invention discloses self-leveling mortar which comprises the following materials in percentage by weight: 20-70% of high-strength gypsum powder, 0-30% of light calcium carbonate powder, 0-50% of heavy calcium carbonate powder, 0-40% of Portland cement, 0-20% of high-alumina cement, 0-30% of quartz sand, 0.1-3% of cellulose ether, 0.1-3% of a water reducing agent, 0.1-3% of a dispersing agent, 0.1-10% of a powdery adhesive and 1-5% of a gypsum retarder. Through superposition of functions of the water reducing agent, the gypsum retarder, the dispersing agent, the powdery adhesive and the like, the overall performance of the self-leveling mortar is improved, and the self-leveling mortar has the characteristics of water resistance, wear resistance and one-time construction thickness of 3-50mm, can be applied to various indoor and outdoor environments, and saves a large amount of labor cost while remarkably improving the building decoration quality. In addition, the preparation method of the self-leveling mortar is safe, environment-friendly, simple, convenient and fast, has low requirements on production equipment, and is beneficial to reducing the production cost of enterprises.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a self-leveling mortar and a preparation method thereof. Background technique [0002] Recently, cement and gypsum materials have been widely used in the process of building decoration. Their hydration products have high compressive strength and flexural strength, and are good decoration and decoration materials. However, it also has many disadvantages such as poor adhesion of cement materials, easy shrinkage, hollowing and cracking, low relative strength of gypsum materials, water resistance, and cannot be used in humid environments. Gypsum-based self-leveling mortar is made of high-strength gypsum, cement, fine bone materials and various construction chemical additives. Gypsum-based self-leveling has the advantages of high levelness and not easy to hollow and crack. Most manufacturers use building gypsum to prepare, and rely on increasing the amount of chemical additives to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B111/62
CPCC04B28/06C04B2111/62C04B2201/50C04B22/143C04B14/28C04B22/00C04B14/06C04B24/383C04B24/2623C04B24/06C04B2103/302
Inventor 潘定邦易嘉桢
Owner 湖南华材友邦科技有限责任公司
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