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Stone paper for maintaining cement mortar and preparation method thereof

A technology of cement mortar and stone paper, applied in the field of building materials, can solve problems such as large manpower and consumption

Active Publication Date: 2013-03-20
山东高旭新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Taking preventive measures, such as regular watering on the mortar surface, covering plastic film, planting grass, etc., can reduce the cracks that mainly appear on the horizontal surface, but it takes a lot of manpower and material resources, especially for large-scale projects. there is a certain degree of difficulty

Method used

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  • Stone paper for maintaining cement mortar and preparation method thereof
  • Stone paper for maintaining cement mortar and preparation method thereof
  • Stone paper for maintaining cement mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 65 parts of heavy calcium carbonate, 10 parts of active silica powder, 0.1 part of triphenyl phosphite, 3 parts of silane coupling agent, 30 parts of linear low density polyethylene, 5 parts of hot melt adhesive, 2,2-bis( 0.3 parts of 4-hydroxyphenyl)propane, 0.5 parts of stearic acid, 0.5 parts of dioctyl epoxy tetrahydrophthalate, 0.2 parts of modified polyethylene wax, 0.5 parts of bentonite, 0.3 parts of oleic acid amide, dehydration 0.5 parts of sorbitol stearate.

[0023] Preparation:

[0024] Mix heavy calcium carbonate, activated silica micropowder, triphenyl phosphite, silane coupling agent at 130°C for 60 minutes, then add linear low density polyethylene, hot melt adhesive, stearic acid, epoxy four Dioctyl hydrogen phthalate, modified high-density polyethylene wax, bentonite, oleic acid amide, and sorbitan stearate continued to mix for 30 minutes, then sent to a plasticizing machine at 170°C for plasticization, and extruded at 170°C Out of the machine, the f...

Embodiment 2

[0026] 55 parts of heavy calcium carbonate, 20 parts of active silica powder, 0.2 parts of triphenyl phosphite, 4 parts of silane coupling agent, 20 parts of linear low density polyethylene, 10 parts of hot melt adhesive, 2,2-bis( 0.4 parts of 4-hydroxyphenyl)propane, 1 part of stearic acid, 1 part of epoxy tetrahydrophthalate dioctyl, 0.3 parts of modified polyethylene wax, 1 part of bentonite, 0.4 parts of oleic acid amide, dehydration 0.75 parts of sorbitol stearate. .

[0027] Preparation:

[0028] Mix heavy calcium carbon, active silica powder, triphenyl phosphite, silane coupling agent at 140°C for 45 minutes, then add linear low density polyethylene, hot melt adhesive, stearic acid, epoxy tetra Dioctyl hydrogen phthalate, modified polyethylene wax, bentonite, oleic acid amide, and sorbitan stearate continued to mix for 45 minutes, then sent to a plasticizing machine at 173°C for plasticization, and extruder at 175°C Casting, 175°C four-axis calender calendering into ...

Embodiment 3

[0030] 45 parts of heavy calcium carbonate, 30 parts of active silica powder, 0.3 parts of triphenyl phosphite, 5 parts of silane coupling agent, 25 parts of linear low density polyethylene, 8 parts of hot melt adhesive, 2,2-bis( 0.5 parts of 4-hydroxyphenyl) propane, 1.5 parts of stearic acid, 1.5 parts of dioctyl epoxy tetrahydrophthalate, 0.4 parts of modified polyethylene wax, 1.5 parts of bentonite, 0.5 parts of oleic acid amide, dehydration 1 part of sorbitan stearate.

[0031] Preparation:

[0032] Mix heavy calcium carbonate, activated silica micropowder, triphenyl phosphite, silane coupling agent at 150°C for 30 minutes, then add linear low density polyethylene, hot melt adhesive, stearic acid, epoxy four Dioctyl hydrogen phthalate, modified polyethylene wax, bentonite, oleic acid amide, and sorbitan stearate continued to mix for 60 minutes, then sent to a plasticizing machine at 176°C for plasticization, and extruder at 179°C Casting, 180°C four-axis calender calen...

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Abstract

The invention provides stone paper for maintaining cement mortar and a preparation method thereof. The stone paper for maintaining the cement mortar comprises the following components in part by weight: 45 to 65 parts of heavy calcium carbonate, 10 to 30 parts of active silica micropowder, 0.1 to 0.3 part of triphenyl phosphate, 3 to 5 parts of silane coupling agent, 20 to 30 parts of linear low-density polyethylene and 5 to 10 parts of hot melt adhesive. In the stone paper, the surface of concrete is directly covered by a macromolecular polymer serving as a basic material after pouring concrete in an acid mode; and the stone paper and the surface of the mortar are subjected to crosslinking adsorption to form one layer of protective film, so that rapid evaporation of water on the surface of the concrete is controlled and plastic shrinking cracking is prevented.

Description

technical field [0001] The present invention relates to a building material. Background technique [0002] China's economy is in a stage of rapid development, and my country's highways, large-scale engineering construction, especially metropolitan subway engineering construction are also booming, and are now at the forefront of the world. In the process of large-scale projects, there are also some technical problems to be solved, such as the cracking problem of the surface after concrete pouring, the cracking problem and deformation resistance of the subgrade surface after expressway concrete pouring; the freezing and thawing resistance required for construction in severe cold areas Questions and more. To overcome technical difficulties, we must rely on scientific and technological progress and adopt advanced technologies, including the application of new materials. [0003] Hot weather usually causes plastic shrinkage and cracking of concrete. If the surrounding environme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B40/04C04B26/04
Inventor 施晓旦郭和森王养臣
Owner 山东高旭新材料有限公司