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Gypsum-based self-leveling mortar special for floor heating backfill

A self-leveling mortar, gypsum-based technology, applied in the field of building materials, can solve the problems of high cost, difficult preparation, difficult promotion, etc., and achieve the effects of low cost, short curing time and guaranteed strength

Inactive Publication Date: 2019-10-15
李山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it is difficult to prepare. At present, α-gypsum is mainly used as the main material for preparation, which is costly and difficult to promote. If the β-building gypsum powder calcined by industrial by-product gypsum can be used as the main material to prepare self-flowing gypsum with superior performance The cost of flat sand will be lower than that of cement-based self-leveling mortar to a certain extent, which will promote the popularization and application of self-leveling sand

Method used

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  • Gypsum-based self-leveling mortar special for floor heating backfill
  • Gypsum-based self-leveling mortar special for floor heating backfill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A special gypsum-based self-leveling mortar for floor heating backfill, including the following components by weight: 350 parts of β-gypsum powder, 140 parts of quartz sand, 2 parts of water reducer, 1 part of retarder, 1 part of water retention agent, recyclable 4 parts of dispersed latex powder, 2 parts of wood fiber, 1 part of defoamer, 30 parts of fly ash, 1 part of anti-sedimentation agent, 1 part of anti-segregation agent, and 200 parts of water.

[0038] Weigh 2kg sample according to the ratio, pour water into the mortar mixer, slowly pour in gypsum-based self-leveling powder, stir slowly for 1min, and then stir rapidly for 1min until uniform.

[0039] The performance of gypsum-based self-leveling mortar is tested according to the standard JC / T1023-2007 "Gypsum-based self-leveling sand general", the performance is as follows figure 2 .

Embodiment 2

[0041]A special gypsum-based self-leveling mortar for floor heating backfill, including the following components by weight: 400 parts of β gypsum powder, 170 parts of quartz sand, 3 parts of water reducer, 2 parts of retarder, 2 parts of water retention agent, recyclable 5 parts of dispersed latex powder, 3 parts of wood fiber, 2 parts of defoamer, 32 parts of fly ash, 2 parts of anti-sedimentation agent, 2 parts of anti-segregation agent, and 240 parts of water.

[0042] Weigh 2kg sample according to the ratio, pour water into the mortar mixer, slowly pour in gypsum-based self-leveling powder, stir slowly for 1min, and then stir rapidly for 1min until uniform.

[0043] The performance of gypsum-based self-leveling mortar is tested according to the standard JC / T1023-2007 "Gypsum-based self-leveling sand general", the performance is as follows figure 2 .

Embodiment 3

[0045] 400 parts of β gypsum powder, 170 parts of quartz sand, 3 parts of water reducer, 2 parts of retarder, 1 part of water retention agent, 6 parts of redispersible latex powder, 3 parts of wood fiber, 1 part of defoamer, fly ash 35 parts, 2 parts of anti-sedimentation agent, 1 part of anti-segregation agent, 240 parts of water.

[0046] Weigh 2kg sample according to the ratio, pour water into the mortar mixer, slowly pour in gypsum-based self-leveling powder, stir slowly for 1min, and then stir rapidly for 1min until uniform.

[0047] The performance of gypsum-based self-leveling mortar is tested according to the standard JC / T1023-2007 "Gypsum-based self-leveling sand general", the performance is as follows figure 2 .

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Abstract

The invention discloses gypsum-based self-leveling mortar special for floor heating backfill, belonging to the technical field of building materials. The gypsum-based self-leveling mortar comprises the following components in parts by weight: 350-500 parts of beta gypsum powder, 140-200 parts of quartz sand, 2-4 parts of a water reducing agent, 1-3 parts of a retarder, 1-2 parts of a water retaining agent, 4-8 parts of redispersible latex powder, 2-4 parts of wood fiber, 1-2 parts of a defoaming agent, 30-40 parts of fly ash, 1-3 parts of an anti-precipitant agent, 1-2 parts of an anti-segregation agent and 200-250 parts of water, has the characteristics of good fluidity, short curing time, high strength, smooth surface, small shrinkage deformation, high bonding strength and low cost, andexpands application fields of alpha high-strength microcrystalline gypsum and iron tailing sand.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a special gypsum-based self-leveling mortar for floor heating backfill. Background technique [0002] As an important part of bulk cement promotion, environmental protection, and improvement of construction modernization level, dry-mixed mortar has always been highly valued by the state and society. There are still some problems in the re-formulation, production, application, and economics of the dry-mixed mortar business in China, which lead to the slow development of the dry-mixed mortar business. At present, due to the diversification of various functional requirements for sand in construction projects, the dry-mixed mortar business The development of the industry gradually starts from special dry-mixed mortars. Among the characteristic dry-mixed mortars, self-leveling floor sand will have the most impressive market volume. At the same time, due to the continuous in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14
CPCC04B28/147C04B14/06C04B24/24C04B24/125C04B24/14C04B24/00C04B24/383C04B2103/0057C04B18/26C04B2103/50C04B18/08C04B2103/0082C04B2103/0068
Inventor 李山
Owner 李山
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