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Fluid lightweight gypsum floor cushion layer material and preparation method thereof

A technology of fluidity and layer materials, which is applied in the field of fluidity light gypsum ground cushion material and its preparation, can solve the problems of restricting the large-scale promotion of gypsum-based self-leveling mortar and the increase of ground engineering cost, so as to reduce the cost of materials, Improved stability and good fluidity

Active Publication Date: 2019-11-12
BBMG MORTAR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with traditional cement-based ground leveling materials, the material cost of gypsum-based self-leveling mortar is about three times that, resulting in a substantial increase in the cost of ground engineering, which in turn limits the large-scale promotion of gypsum-based self-leveling mortar

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a kind of fluidity lightweight gypsum base ground cushion material, and the preparation method comprises the following steps:

[0035] 1. Weigh the following raw materials: 700g of desulfurized building gypsum powder, 30g of ordinary Portland cement PO42.5, 190g of heavy calcium powder, 80g of light sand (with a particle size of 50-90 mesh and a natural bulk density of 100kg / m 3 ), water-retaining thickener 0.8g (hydroxypropyl methylcellulose ether with a viscosity of 20000mPa.s), modified rosin air-entraining agent 1.5g, powder foam stabilizer polyvinyl alcohol 0.5g, polycarboxylic acid water-reducing Agent 2.0g, high-efficiency protein retarder 0.2g.

[0036] 2. Mix the above powder evenly and set aside;

[0037] 3. Use a straw to absorb 6.4g of liquid foam stabilizer soluble oil and add it to 640g of water.

[0038] 4. Add the powder in step 2 to the liquid in step 3, and stir at a low speed for 120 seconds with a mortar mixing frame to pre...

Embodiment 2

[0041] This embodiment provides a kind of fluidity lightweight gypsum base ground cushion material, and the preparation method comprises the following steps:

[0042] 1. Weigh the following raw materials: 700g of desulfurized building gypsum powder, 30g of ordinary Portland cement PO42.5, 220g of heavy calcium powder, 50g of light sand (with a particle size of 50-90 mesh and a natural bulk density of 100kg / m 3 ), water-retaining thickener 0.8g (hydroxypropyl methylcellulose ether with a viscosity of 20000mPa.s), sodium rosinate air-entraining agent 2.5g, powder foam stabilizer polyvinyl alcohol 0.5g, polycarboxylate superplasticizer 2.5g, high-efficiency protein retarder 0.2g.

[0043] 2. Mix the above powder evenly and set aside;

[0044] 3. Use a straw to absorb 5.5g of liquid foam stabilizer soluble oil and add it to 550g of water.

[0045] 4. Add the powder in step 2 to the liquid in step 3, and stir at a low speed for 120 seconds with a mortar mixing frame to prepare a ...

Embodiment 3

[0048] This embodiment provides a kind of fluidity lightweight gypsum base ground cushion material, and the preparation method comprises the following steps:

[0049] 1. Weigh the following raw materials: 700g of desulfurized building gypsum powder, 40g of ordinary Portland cement PO42.5, 200g of heavy calcium powder, 60g of light sand (with a particle size of 50-90 mesh and a natural bulk density of 100kg / m 3 ), water-retaining thickener 0.9g (hydroxypropyl methylcellulose ether with a viscosity of 20000mPa.s), modified rosin air-entraining agent 1.0g, powder foam stabilizer polyvinyl alcohol 0.5g, polycarboxylic acid water-reducing Agent 2.5g, high-efficiency protein retarder 0.2g.

[0050] 2. Mix the above powder evenly and set aside;

[0051] 3. Use a straw to absorb 5.5g of liquid foam stabilizer soluble oil and add it to 550g of water.

[0052] 4. Add the powder in step 2 to the liquid in step 3, and stir at a low speed for 120 seconds with a mortar mixing frame to pre...

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Abstract

The invention provides a fluid lightweight gypsum-based floor cushion layer material and a preparation method thereof. The fluid lightweight gypsum-based floor cushion layer material is prepared fromthe following raw materials: 55-75 parts by weight of desulfurized building gypsum, 2-5 parts by weight of Portland cement, 10-38 parts by weight of heavy calcium carbonate, 5-10 parts by weight of light sand, 0.05-0.3 part by weight of an air entraining agent, 0.05-0.1 part by weight of a powder foam stabilizer, and 0.45-0.8 part by weight of a liquid foam stabilizer. The fluid lightweight gypsumfloor cushion layer material provided by the invention has the characteristics of good fluidity, a low density and high strength, and the characteristics are significantly higher than those of a traditional polyurethane type light aggregate concrete floor cushion layer material; and the floor cushion layer material can be effectively reduce costs per unit square meter and greatly improve construction efficiency during engineering application, and the quality stability and the heat-preservation sound-insulation performance of the cushion layer material are improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a fluid lightweight gypsum ground cushion material and a preparation method thereof. Background technique [0002] The "lightweight" of ready-mixed mortar will definitely become a trend in the development of the mortar industry. The parts where light mortar is used in the interior of ordinary civil buildings mainly include wall and ground systems. Light mortar is mainly used for rough leveling of building walls and ground systems, and has the functions of heat preservation and energy saving. [0003] Lightweight ground leveling materials mainly include lightweight materials such as ceramsite concrete, foam concrete, and polyurethane lightweight aggregate concrete. Among them, the surface of foam concrete is easy to crack or pulverize, which limits its application in engineering. Clay ceramsite and shale ceramsite consume a lot of non-renewable resources, energy and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/10C04B111/40
CPCC04B28/144C04B2111/40C04B2201/20C04B2201/50C04B7/02C04B14/28C04B14/06C04B24/383C04B24/34C04B24/2623C04B24/24C04B24/14C04B38/10
Inventor 李志博吴金明杨永峰章银祥田胜利
Owner BBMG MORTAR CO LTD