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Enhanced geopolymer and preparation method thereof

A geopolymer and enhanced technology, applied in cement production, etc., can solve the problems of complicated processing technology and increased cost, and achieve the effects of enhanced mechanical properties, fast molding speed, and good chemical resistance

Inactive Publication Date: 2016-08-03
中炬国融(河北)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The addition of other reinforcing agents not only increases the cost, but also complicates the processing technology

Method used

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  • Enhanced geopolymer and preparation method thereof

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Effect test

Embodiment 1

[0029] A reinforced geopolymer, the raw materials of which include by weight parts: 0.1 part of sodium tripolyphosphate, 10 parts of 2000 mesh metakaolin, 10 parts of liquid-2 water glass (modulus 3.1-3.4), 5 parts of sodium hydroxide 5 parts, water 5 parts.

[0030] The preparation method of above-mentioned reinforced geopolymer specifically comprises the steps:

[0031] (1) In parts by weight, prepare 0.1 parts of sodium tripolyphosphate, 10 parts of 2000 mesh metakaolin, 10 parts of liquid-2 water glass (modulus 3.1-3.4), 5 parts of sodium hydroxide, and 5 parts of water;

[0032] (2) Mix the water glass prepared in step (1) with sodium hydroxide, stir and ultrasonically, then leave it for 24 hours to obtain an alkali activator;

[0033] (3) Mix the sodium tripolyphosphate and metakaolin prepared in step (1) evenly, add the alkali activator obtained in step (2) to grind and mix, and add the water prepared in step (1) and mix evenly to obtain uniform slurry;

[0034] (4) ...

Embodiment 2

[0039] A kind of reinforced geopolymer, its raw material comprises by weight: 2 parts of sodium dihydrogen phosphate, 80 parts of 8000 mesh metakaolin, 80 parts of 8000 mesh fly ash, liquid-4 water glass (modulus 2.2-2.5 ) 80 parts, potassium hydroxide 30 parts, 8000 mesh silicon dioxide 50 parts, water 30 parts.

[0040] The preparation method of above-mentioned reinforced geopolymer specifically comprises the steps:

[0041] (1) In parts by weight, prepare 2 parts of sodium dihydrogen phosphate, 80 parts of 8000 mesh metakaolin, 80 parts of 8000 mesh fly ash, 80 parts of liquid-4 water glass (modulus 2.2-2.5), hydrogen 30 parts of potassium, 50 parts of 8000 mesh silica, 30 parts of water;

[0042] (2) mixing the water glass prepared in step (1) with potassium hydroxide, ultrasonicating after stirring, and then standing for 24 hours to obtain the alkali activator;

[0043] (3) Mix sodium dihydrogen phosphate prepared in step (1) with metakaolin, fly ash and silicon dioxide...

Embodiment 3

[0048] A reinforced geopolymer, the raw materials of which include, in parts by weight, 0.4 parts of aluminum tripolyphosphate, 41 parts of 250 mesh metakaolin, 43 parts of liquid-1 water glass (modulus 3.5-3.7), and 6 parts of sodium carbonate , 1 part of 250 mesh silicon dioxide, 9 parts of water.

[0049] The preparation method of above-mentioned reinforced geopolymer specifically comprises the steps:

[0050] (1) In parts by weight, prepare 0.4 parts of aluminum tripolyphosphate, 41 parts of 250-mesh metakaolin, 43 parts of liquid-1 water glass (modulus 3.5-3.7), 6 parts of sodium carbonate, and 250-mesh silica 1 part, 9 parts of water;

[0051] (2) Mix the water glass prepared in step (1) with sodium carbonate, ultrasonically stir after stirring, and then let stand for 24 hours to obtain the alkali activator;

[0052] (3) Mix the aluminum tripolyphosphate prepared in step (1) with metakaolin and silicon dioxide evenly, add the alkali activator obtained in step (2) to gr...

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Abstract

The invention provides an enhanced geopolymer and a preparation method thereof. The preparation method comprises the following steps: preparing the following raw materials: phosphate and / or polyphosphates, meta-kaolin, fly ash, sodium silicate, an alkaline compound, silicon dioxide, and water, mixing the raw materials according to a certain ratio, grinding the mixed raw materials to obtain uniform slurry, injecting the slurry into a mould, and carrying out maintenance at a room temperature or low temperature (20 to 80 DEG C) to obtain the geopolymer. The geopolymer, which is produced by the provided formula and preparation method, has the advantages of high temperature resistant and chemical product resistant properties, and excellent mechanical properties, the compressive strength can reach 150 MPa or more, and the application requirements of construction material and high temperature coating can be met. Compared with the conventional construction material production technologies, the provided preparation method has the advantages of simple technology, energy saving, environment-friendliness, low cost, and easy operation.

Description

technical field [0001] The invention relates to a reinforced geopolymer and a preparation method thereof, and belongs to the field of inorganic non-metal gelling materials. Background technique [0002] Geopolymer is one of the inorganic non-metallic materials that has been studied very actively in the world in recent years. It is a new type of inorganic polymer material obtained by chemical reaction at relatively low temperature with clay, industrial waste residue or slag as the main raw material and alkali or acid as the activator. Geopolymers have unique properties superior to ordinary Portland cement, such as high strength, fast hardening, and acid and alkali corrosion resistance. At the same time, they have the advantages of abundant materials, low prices, and energy saving, which has aroused great interest from domestic and foreign material experts. . [0003] The formation principle of geopolymer is mainly that the basic activator excites the silicon-aluminum source...

Claims

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Application Information

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IPC IPC(8): C04B12/00
CPCC04B7/243C04B12/005Y02P40/10
Inventor 杜飞鹏谢岁岁李晶晶胡双峰张云飞蒋灿
Owner 中炬国融(河北)科技有限公司
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