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Fluorine-gypsum-based machine-spraying thermal insulation mortar and preparation method thereof

A technology of thermal insulation mortar and fluorine gypsum, applied in the field of composite thermal insulation materials, can solve the problems of poor mortar cohesion, slow hydration process, poor water retention, etc., and achieve the effects of fast construction speed, low shrinkage deformation, and good water resistance.

Inactive Publication Date: 2016-07-20
HEFEI GUORUI INTEGRATED CONSTR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Fluorogypsum is mainly an industrial by-product from hydrofluoric acid chemical enterprises. Conducive to the use in construction engineering; when the gypsum-based thermal insulation mortar reported in the past is used in the production of cold-formed thin-walled light steel structure housing industry, due to its poor water retention and poor cohesion in the mortar, the pipe will be blocked when sprayed by machine And the phenomenon of sagging and slipping after spraying

Method used

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  • Fluorine-gypsum-based machine-spraying thermal insulation mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] By weight, the specific surface area is 350m 2 / kg of fluorine gypsum powder 79 parts, quicklime 4 parts, cement 6 parts, the specific surface area is 360m 2 10 parts / kg of slag powder, 1 part of thixotropic lubricant, 0.8 parts of ferrous sulfate, 0.1 parts of water retaining agent, viscosity of 100,000 mpa.s, 0.2 parts of α-starch, 0.2 parts of polyvinyl alcohol, vinyl acetate- Put 0.8 parts of ethylene copolymer latex powder into a multifunctional dry powder mixer, mix and stir for 10 minutes to obtain a uniformly mixed thermal insulation mortar masterbatch, then put the masterbatch into a mortar mixer, add 70 parts of water and mix for 3 minutes, the mixer speed 60 rpm, then 1.9 parts of EPS granules were added, the mixer was rotated at 60-80 rpm, and stirred for 5 minutes to obtain fluorogypsum-based machine-sprayed thermal insulation mortar.

Embodiment 2

[0019] By weight, the specific surface area is 350m 2 / kg of fluorine gypsum powder 73 parts, quicklime 5 parts, cement 6 parts, the specific surface area is 360m 2 / kg of slag fine powder 15 parts, thixotropic lubricant 1 part, ferrous sulfate 1 part, water retaining agent 0.2 part, viscosity is 100,000 mpa.s, α-starch 0.3 part, polyvinyl alcohol 0.3 part, vinyl acetate- Put 0.6 parts of ethylene copolymer latex powder into a multifunctional dry powder mixer, mix and stir for 10 minutes to obtain a uniformly mixed thermal insulation mortar masterbatch, then put the masterbatch into a mortar mixer, add 70 parts of water and mix for 3 minutes, the mixer speed 60 rpm, then 1.9 parts of EPS granules were added, the mixer was rotated at 60-80 rpm, and stirred for 5 minutes to obtain fluorogypsum-based machine-sprayed thermal insulation mortar.

Embodiment 3

[0021] By weight, the specific surface area is 350m 2 / kg of fluorine gypsum powder 70 parts, quicklime 6 parts, cement 8 parts, the specific surface area is 360m 2 15 parts / kg of slag powder, 1 part of thixotropic lubricant, 1.2 parts of ferrous sulfate, 0.2 parts of water retaining agent, viscosity of 100,000 mpa.s, 0.2 parts of α-starch, 0.4 parts of polyvinyl alcohol, vinyl acetate- Put 0.6 parts of ethylene copolymer latex powder into a multifunctional dry powder mixer, mix and stir for 10 minutes to obtain a uniformly mixed thermal insulation mortar masterbatch, then put the masterbatch into a mortar mixer, add 70 parts of water and mix for 3 minutes, the mixer speed 60 rpm, and then add 1.0 parts of EPS granules, the mixer speed is 60-80 rpm, and stir for 5 minutes to obtain fluorogypsum-based machine-sprayed thermal insulation mortar.

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Abstract

The invention discloses a fluorine-gypsum-based machine-spraying thermal insulation mortar and a preparation method thereof and relates to the field of composite thermal insulation material. The fluorine-gypsum-based machine-spraying thermal insulation mortar comprises, by weight, 65-80 parts of fluorine gypsum powder, 4-8 part of quick lime, 3-8 parts of cement, 10-20 parts of superfine slag powder, 0.5-2.5 parts of thixotropic lubricant, 0.7-2.2 parts of EPS particle, 0.4-1 part of redispersible latex powder, 0-0.5 part of water retaining agent, 0.2-0.6 part of starch, 0.5-1.5 parts of gypsum activator, 0.1-0.5 part of polyvinyl alcohol and 35-55 parts of water. The fluorine-gypsum-based machine-spraying thermal insulation mortar is simple to prepare, good in thermal insulation performance, environmentally friendly, energy-saving, applicable to machine spraying and capable of saving cost.

Description

technical field [0001] The invention relates to the field of composite thermal insulation materials, in particular to a fluorogypsum-based machine-sprayed thermal insulation mortar and a preparation method thereof. Background technique [0002] Gypsum-based thermal insulation mortar has light weight, good thermal insulation performance, low cost, and fast construction speed. Compared with ordinary thermal insulation mortar, it has the advantage of machine spraying technology, so it can be well applied to cold-formed thin-walled steel structure integrated buildings. [0003] In recent years, the comprehensive utilization of industrial solid waste to prepare new gypsum-based machine-sprayed thermal insulation mortar is energy-saving and environmentally friendly. The use of industrial waste to prepare new green and energy-saving building materials has become an important development trend of my country's building materials industry. [0004] Fluorogypsum is mainly an industrial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14
CPCC04B28/165C04B2201/10C04B2201/20C04B2201/32C04B2201/50C04B22/064C04B7/02C04B18/067C04B2103/0085C04B22/149C04B2103/465C04B24/38C04B24/2623C04B16/0666
Inventor 方有春仇多宏程佳
Owner HEFEI GUORUI INTEGRATED CONSTR TECH CO LTD
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