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A kind of geopolymer component and its preparation method

A geopolymer and component technology, applied in the field of building materials, can solve the problems affecting product strength, shorten preparation time, increase economic cost, etc., and achieve the effect of improving mechanical properties such as strength, shortening delivery time, and reducing economic cost.

Active Publication Date: 2022-06-28
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved in the present invention is to overcome the need to further shorten the preparation time of geopolymers in the prior art, increase the material strength by adding fibers or organic materials and increase the economic cost, the use of organic materials will cause environmental pollution, and The use of excessive moisture will form pores in the product and affect the strength of the product and other defects, thereby providing a geopolymer component and its preparation method

Method used

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  • A kind of geopolymer component and its preparation method
  • A kind of geopolymer component and its preparation method
  • A kind of geopolymer component and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] This embodiment provides a geopolymer component, and the raw materials are weighed in the following parts by weight: metakaolin (silicon-aluminum molar ratio is 1:1, purity is 95%) 58kg, sodium silicate with a modulus of 2.3 4.5kg, hydrogen 1.5kg of sodium oxide, 10kg of water, 3kg of inorganic curing agent (sodium silicate with a modulus of 3.3), and 0.3kg of polycarboxylate water-reducing agent. Then follow these steps to prepare:

[0055] The sodium silicate, sodium hydroxide and water are mixed and stirred evenly by weight, and cooled for 12 hours to obtain a liquid activator;

[0056] Pour the metakaolin, inorganic curing agent and additives into the stirring tank and stir for 5 minutes to mix evenly, then add the activator solution and stir to obtain a semi-dry and wet mixture;

[0057] The semi-dry and wet mixture mixed in the above steps is placed in a steel mold (shaped as figure 2 Fabric treatment is carried out in (shown);

[0058] The materials processed...

Embodiment 2

[0063] This embodiment provides a geopolymer component, and the raw materials are weighed according to the following parts by weight: metakaolin (silicon-aluminum molar ratio is 1:1, purity is 95%) 60kg, sodium silicate 4 with a modulus of 2.3, hydroxide Sodium 2, water 12kg, inorganic curing agent (sodium silicate with a modulus of 3.3) 3kg, polycarboxylate water reducing agent 0.2kg. Then follow these steps to prepare:

[0064] The sodium silicate, sodium hydroxide and water are mixed and stirred evenly by weight, and cooled for 12 hours to obtain a liquid activator;

[0065] Pour the metakaolin, inorganic curing agent and additives into the stirring tank and stir for 5 minutes to mix well, then add the activator solution and stir to obtain a semi-dry and wet mixture;

[0066] The semi-dry and wet mixture mixed in the above steps is placed in a steel mold (shaped as figure 2 Fabric treatment is carried out in (shown);

[0067] The materials processed in the above steps a...

Embodiment 3

[0072] The present embodiment provides a geopolymer component, and the raw materials are weighed in the following parts by weight: metakaolin (silicon-aluminum molar ratio is 1:1, purity is 95%) 68kg, and sodium silicate with a modulus of 2.3 is 4kg. , 4kg of sodium hydroxide, 15kg of water, 5kg of inorganic curing agent (sodium silicate with a modulus of 3.3), and 0.35kg of polycarboxylic acid-based water reducing agent. Then follow these steps to prepare:

[0073] The sodium silicate, sodium hydroxide and water are mixed and stirred evenly by weight, and cooled for 12 hours to obtain a liquid activator;

[0074] Pour the metakaolin, inorganic curing agent and additives into the stirring tank and stir for 5 minutes to mix well, then add the activator solution and stir to obtain a semi-dry and wet mixture;

[0075] The semi-dry and wet mixture mixed in the above steps is placed in a steel mold (shaped as figure 2 Fabric treatment is carried out in (shown);

[0076] The mat...

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Abstract

The invention belongs to the technical field of building materials, and in particular relates to a geopolymer component and a preparation method thereof. The component is composed of 58-74 parts of silicon-aluminum raw materials; 4-12 parts of activator; 3-7 parts of inorganic curing agent; 0.2-0.5 parts of additives; 7-20 parts of water. The technical solution of the present invention consumes less water, avoids the formation of pores in the product caused by the existence of excess water, and improves the mechanical properties such as the strength of the geopolymer; the present invention does not require additional reinforcing materials such as fibers, resins, and polyvinyl alcohol , making full use of the chemical activity of raw materials, especially the use of inorganic curing agents, only through the coordination of various raw materials and the ratio of dosage, it can be quickly produced in situ through the coordination of various components with high degree of polymerization and high density. , High-strength geopolymer components, effectively reducing economic costs, greatly shortening the delivery time, no release of free formaldehyde, more environmentally friendly, and better fire resistance and high temperature resistance, with broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a geopolymer component and a preparation method thereof. Background technique [0002] Geopolymer (Geopolymer) is one of the most active green cementitious materials in the world in recent years. It uses clay, industrial waste residue or slag as the main raw material, alkali or acid as the activator, after proper process treatment, a new type of inorganic polymer material obtained by chemical reaction at a lower temperature. This material is a new material developed in recent years, it is possible to replace cement in many occasions, and has better performance than cement. Geopolymers have unique properties superior to ordinary Portland cement, such as high strength, fast hardening, acid and alkali corrosion resistance, etc. At the same time, they have the advantages of abundant materials, low price, and energy saving, which have attracted great interest from material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00B28B3/02C04B111/28
CPCC04B28/006B28B3/025C04B2111/28C04B2111/763C04B2201/52C04B22/00C04B2103/302Y02P40/10
Inventor 杜鹏马玉玮徐东宇周宗辉王金邦程新
Owner UNIV OF JINAN
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