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A kind of ultra-high-strain high-strength thermal insulation material and its preparation method

A thermal insulation material and high-strength technology, applied in the field of building thermal insulation materials, can solve the problems of low strength, poor load-bearing capacity, easy cracking, etc., and achieve the effects of low water absorption, high thermal insulation efficiency, and good ductility.

Active Publication Date: 2020-07-17
YONGAN BAOHUALIN IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an ultra-high-strain high-strength thermal insulation material and its preparation method to solve the problems of low strength, poor load-bearing capacity and easy cracking in existing materials

Method used

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  • A kind of ultra-high-strain high-strength thermal insulation material and its preparation method
  • A kind of ultra-high-strain high-strength thermal insulation material and its preparation method
  • A kind of ultra-high-strain high-strength thermal insulation material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An ultra-high-strain and high-strength thermal insulation material, the material is composed of: the amount of mixing water is expressed as a water-cement ratio of 0.20, the volume percentage of fibers is 1.7%, and the other components are composed of the following components in mass percentages Composition: 48% of cement, 14% of silica fume, 5% of calcium powder, 5% of fly ash, 25% of sand, 0.039% of aminosilane modifier, 2.861% of water reducer, and foaming agent of 0.1%.

[0028] Among them, cement is grade 52.5 Portland cement; silica fume is commercially available common silica fume, and its SiO 2 The content is greater than 92%; the calcium carbonate content of calcium powder is greater than 95%wt, and the average particle size is 5-20μm; the fly ash is high-quality Class F, Class I low-calcium fly ash, in which the mass content of free CaO is less than 1%; the fiber It is polyvinyl alcohol (PVA) fiber, the fiber length is 6mm-12mm, the diameter is 12-39μm, the e...

Embodiment 2

[0030] An ultra-high-strain and high-strength thermal insulation material, the material is composed of: the amount of mixing water is expressed as a water-cement ratio of 0.24, the volume percentage of fibers is 2.3%, and other components are composed of the following components in mass percentages Composition: 30% of cement, 10% of silica fume, 17% of calcium powder, 17% of fly ash, 23% of sand, 0.026% of aminosilane modifier, 2.834% of water reducer, and foaming agent of 0.14%.

[0031] Among them, cement is grade 52.5 Portland cement; silica fume is commercially available common silica fume, and its SiO 2 The content is greater than 92%; the calcium carbonate content of calcium powder is greater than 95%wt, and the average particle size is 5-20μm; the fly ash is high-quality Class F, Class I low-calcium fly ash, in which the mass content of free CaO is less than 1%; the fiber It is polyvinyl alcohol (PVA) fiber, the fiber length is 6mm-12mm, the diameter is 12-39μm, the el...

Embodiment 3

[0033] An ultra-high-strain and high-strength thermal insulation material, the material is composed of: the amount of mixing water is expressed as a water-cement ratio of 0.22, the volume percentage of fibers is 2.0%, and other components are composed of the following components in mass percentages Composition: 33% of cement, 6% of silica fume, 16% of calcium powder, 23% of fly ash, 19% of sand, 0.019% of aminosilane modifier, 2.851% of water reducing agent, and foaming agent of 0.13%.

[0034] Among them, cement is grade 52.5 Portland cement; silica fume is commercially available common silica fume, and its SiO 2 The content is greater than 92%; the calcium carbonate content of calcium powder is greater than 95%wt, and the average particle size is 5-20μm; the fly ash is high-quality Class F, Class I low-calcium fly ash, in which the mass content of free CaO is less than 1%; the fiber It is polyethylene (PE) fiber, the fiber length is 6mm-12mm, the diameter is 12-39μm, the el...

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Abstract

The invention discloses an ultrahigh-strain high-strength thermal-insulation material and a preparation method thereof. The water-to-cement ratio of the material is 0.20-0.25, and the volume content of fibers is 1.5-2.5%. The rest is composed of the following components in percentage by mass: 28-48% of cement, 6-14% of silica fume, 5-23% of calcium powder, 5-23% of fly ash, 19-25% of sand, 0.019-0.039% of aminosilane modifier, 2.819-2.861% of water reducing agent and 0.1-0.15% of foaming agent. The thermal-insulation material has the advantages of high strength, favorable ductility, low shrink, high thermal-insulation efficiency, low water absorptivity, favorable water impermeability, favorable freezing resistance, favorable flame retardancy (fire rating A), favorable processability, high environmental adaptability and favorable plasticity, can be made into boards and used for large-scale cast-in-place, is convenient for construction, and is suitable for any building position.

Description

technical field [0001] The invention relates to the technical field of load-bearing building thermal insulation materials, in particular to a preparation method of an ultra-high strain and high-strength thermal insulation material. Background technique [0002] As the pillar industry of the national economy, the construction industry accounts for about 30% of the total energy consumption. It is also an industry that has a greater impact on natural resources and the environment. In order to build a resource-saving and environment-friendly society, our country has implemented the strategic deployment of energy conservation, emission reduction, and sustainable development, and people are paying more and more attention to building energy conservation and environmental protection. Wall and roof insulation is a very important energy-saving measure. In order to meet the needs of different building structures, various building energy-saving insulation materials have appeared on the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B38/10C04B38/02
CPCC04B28/04C04B2201/20C04B2201/32C04B2201/50C04B18/146C04B14/28C04B18/08C04B14/06C04B24/42C04B2103/302C04B16/0641C04B24/14C04B38/10C04B24/34C04B16/0625C04B38/02
Inventor 郭丽萍邓忠华
Owner YONGAN BAOHUALIN IND DEV
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