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High-strength light gypsum keel and application

A high-strength, keel technology, applied to building components, walls, buildings, etc., can solve the problems of low strength and high weight of gypsum keels, and achieve high flexural strength, light weight, and improved strength

Active Publication Date: 2020-08-21
GUIZHOU KAILIN PHOSPHOGYPSUM INTEGRATION UTILIZATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patented technology improves the strength of the gypsum keel by adding plant fibers and pressing under high pressure, but the strength is still low, and the weight of the gypsum keel is relatively high

Method used

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  • High-strength light gypsum keel and application
  • High-strength light gypsum keel and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 plaster keel

[0026] Raw materials: 80kg of industrial by-product plaster of paris, 8kg of light calcium carbonate, 8kg of slag powder, 20kg of porous polypropylene fiber, 3kg of sodium lignosulfonate, 1kg of sulfamate superplasticizer, and 8kg of cement.

[0027] The preparation process of the modified polypropylene fiber is as follows: take a polypropylene slice with a melt index of 30-50, add 5% of its mass of nano-gypsum powder and 0.1% of its mass of sodium stearate, and mix them in a screw extruder. Extrude to make blended fibers; soak the blended fibers in 5% hydrochloric acid solution for 4 hours, take them out, wash with water, and dry to make porous polypropylene fibers.

[0028] Preparation:

[0029] (1) Mix industrial re-production plaster of paris with light calcium carbonate, add water to make a suspension with a slurry concentration of 15%; add a reinforcing agent to the suspension and stir evenly, then stir and react at 80-90°C for 0.5h ,...

Embodiment 2

[0034] Embodiment 2 plaster keel

[0035] Raw materials: 65kg of industrial by-product plaster of paris, 9kg of light calcium carbonate, 7kg of slag powder, 24kg of porous polypropylene fiber, 2.4kg of potassium tartrate, 1.5kg of sulfamate-based superplasticizer, and 6kg of cement.

[0036] The preparation process of the modified polypropylene fiber is as follows: take a polypropylene slice with a melt index of 30-50, add 4% of its mass of nano-gypsum powder and 0.2% of its mass of sodium stearate and mix them in a screw extruder Extrude to make blended fibers; soak the blended fibers in 5% hydrochloric acid solution for 4 hours, take them out, wash with water, and dry to make porous polypropylene fibers.

[0037] Preparation:

[0038] (1) Mix industrial re-production plaster of paris with light calcium carbonate, add water to make a suspension with a slurry concentration of 15%; add a reinforcing agent to the suspension and stir evenly, then stir and react at 80-90°C for 0....

Embodiment 3

[0043] Embodiment 3 plaster keel

[0044] Raw materials: 60kg of industrial by-product plaster of paris, 10kg of light calcium carbonate, 6kg of slag powder, 30kg of porous polypropylene fiber, 2kg of sodium lignosulfonate, 2kg of sulfamate-based superplasticizer, and 4kg of cement.

[0045] The preparation process of the modified polypropylene fiber is as follows: take a polypropylene slice with a melt index of 30-50, add 5% of its mass of nano-gypsum powder and 0.3% of its mass of sodium stearate and mix them in a screw extruder Extrude to make blended fibers; soak the blended fibers in 5% hydrochloric acid solution for 4 hours, take them out, wash with water, and dry to make porous polypropylene fibers.

[0046] Preparation:

[0047](1) Mix industrial re-production plaster of paris with light calcium carbonate, add water to make a suspension with a slurry concentration of 15%; add a reinforcing agent to the suspension and stir evenly, then stir and react at 80-90°C for 0.5...

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Abstract

The invention belongs to the technical field of building materials, and particularly relates to a high-strength light gypsum keel and application thereof. The high-strength light keel gypsum is prepared from 60-80 parts of industrial byproduct calcined gypsum, 8-10 parts of light calcium carbonate, 6-8 parts of superfine slag powder, 20-30 parts of porous polypropylene fibers, 2-3 parts of a retarder, 1-2 parts of a water reducing agent and 4-8 parts of cement. The gypsum keel prepared in the invention is high in compressive strength and flexural strength and light in weight; and the keel canbe widely applied to building partition keels.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a high-strength lightweight gypsum keel and its application. Background technique [0002] Industrial by-product Gypsum is an industrial by-product produced by chemical reactions in industrial production, with calcium sulfate as the main component. Industrial by-product gypsum mainly includes desulfurization gypsum discharged from coal-fired power plants; phosphogypsum discharged from fertilizer industry; citric acid gypsum discharged from citric acid plant; titanium gypsum discharged from titanium dioxide plant; fluorine gypsum discharged from hydrogen fluoride plant; gypsum powder equipment for salt production Industrial emissions of salt gypsum, etc. With the development of my country's current industry, the discharge of industrial by-product gypsum has increased dramatically. Most of these industrial by-product gypsums are not utilized, occupy a large amount of l...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B16/06E04B2/74C04B111/40
CPCC04B28/144C04B28/143C04B28/142C04B16/0633E04B2/74C04B2201/20C04B2201/50C04B2111/40C04B14/28C04B18/141C04B7/00C04B24/18C04B2103/302C04B24/42C04B24/06C04B24/085
Inventor 彭步平张启卫米林杨步雷安光文宋维相徐韦洪李贵汶朱国飞杨永彬姚孟林韦明志王琴何珍张燕施辉朝刘小成徐虎罗进峰崔俊新
Owner GUIZHOU KAILIN PHOSPHOGYPSUM INTEGRATION UTILIZATION
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