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Alkali-activated high-titanium slag baking-free haycite and preparation method thereof

A high-titanium slag and alkali-activated technology, which is applied in the field of building materials and its preparation, can solve the problems of high energy consumption, complicated ceramsite process, and difficulty in direct utilization, etc., and achieve fast setting and hardening speed, high early strength, and low production energy consumption. low effect

Active Publication Date: 2016-10-12
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of low activity of high-titanium slag, difficulty in direct utilization in cement concrete, complex sintered ceramsite process and high energy consumption in the prior art, and to provide an alkali-activated high-titanium slag non-burning ceramsite and its preparation method

Method used

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  • Alkali-activated high-titanium slag baking-free haycite and preparation method thereof
  • Alkali-activated high-titanium slag baking-free haycite and preparation method thereof
  • Alkali-activated high-titanium slag baking-free haycite and preparation method thereof

Examples

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Effect test

Embodiment 1

[0030] An alkali-activated high-titanium slag non-fired ceramsite, which consists of: 100 parts by weight of high-titanium slag fine powder, 12.5 parts by weight of alkali activator solution, 0.5 parts by weight of pore-forming agent and 10 parts by weight of water Mix composition.

[0031] Its preparation method is:

[0032] 1) 100 parts by weight of high-titanium slag micropowder is placed in a disc granulator and stirred to form a uniformly dispersed powder;

[0033] 2) Slowly add 0.5 parts by weight of pore forming agent, 10 parts by weight of water, and 12.5 parts by weight of alkali activator solution in sequence, stir, granulate, and shape into a blank;

[0034] 3) Curing the blank under natural conditions for 28 days to obtain the unfired ceramsite of the present invention.

Embodiment 2

[0036] An alkali-activated high-titanium slag non-burning ceramsite, in parts by weight, consists of: 100 parts by weight of high-titanium slag fine powder, 20 parts by weight of alkali activator solution, 1.5 parts by weight of pore-forming agent and 2.5 parts by weight of water Mix composition.

[0037] Its preparation method is:

[0038] 1) 100 parts by weight of high-titanium slag micropowder is placed in a disc granulator and stirred to form a uniformly dispersed powder;

[0039] 2) Slowly add 1.5 parts by weight of pore forming agent, 2.5 parts by weight of water, and 20 parts by weight of alkali activator solution in sequence, stir, granulate, and shape into a blank;

[0040] 3) Curing the blank under natural conditions for 28 days to obtain the unfired ceramsite of the present invention.

Embodiment 3

[0042] An alkali-activated high-titanium slag non-fired ceramsite is composed of: 100 parts by weight of high-titanium slag fine powder, 30 parts by weight of an alkali activator solution and 2 parts by weight of a pore-forming agent.

[0043] Its preparation method is:

[0044] 1) 100 parts by weight of high-titanium slag micropowder is placed in a disc granulator and stirred to form a uniformly dispersed powder;

[0045] 2) Slowly add 2 parts by weight of pore-forming agent and 30 parts by weight of alkali activator solution in sequence, stir, granulate, and form into a billet;

[0046] 3) Curing the blank under natural conditions for 28 days to obtain the unfired ceramsite of the present invention.

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Abstract

The invention discloses alkali-activated high-titanium slag baking-free haycite which is characterized by being prepared by mixing 100 weight parts of high-titanium slag micro powder, 12.5 to 30 weight parts of an alkali-activator, 0.5 to 10 weight parts of a pore forming substance and 0 to 10 weight parts of water. A preparation method of the alkali-activated high-titanium slag baking-free haycite comprises the following steps: putting the high-titanium slag micro powder into a disk granulator for stirring, so as to form a uniformly dispersed powder body; adding the pore forming substance, the water and the alkali-activator solution in sequence, and performing stirring, granulation and forming to obtain a blank, wherein the alkali-activator solution is water glass; maintaining the blank under a natural environment condition for 28 days, so as to obtain the alkali-activated high-titanium slag baking-free haycite. By the adoption of the preparation method for preparing the alkali-activated high-titanium slag baking-free haycite, high-temperature baking is not needed; a large mixing amount of the high-titanium slag micro powder can be used, so that a product is light in mass and high in strength; the alkali-activated high-titanium slag baking-free haycite has the characteristics of simple process, low cost, energy conservation, low carbon, environment friendliness and the like.

Description

technical field [0001] The invention belongs to building materials and their preparation, and relates to an alkali-activated high-titanium slag unfired ceramsite and a preparation method thereof. The unfired ceramsite prepared by the invention is suitable for building materials. Background technique [0002] High-titanium slag is a kind of TiO produced by smelting pig iron with vanadium-titanium magnetite. 2 Industrial solid waste with a content of more than 15%, due to the TiO in its composition 2 Most of them exist in stable perovskite structure minerals, and the active calcium, silicon, and aluminum components are in the glass solid solution, resulting in a slow chemical reaction rate and reduced activity of the gelling active components. Applying high-titanium slag to the field of building materials is the most effective means to realize its large-scale comprehensive utilization. However, when high-titanium slag is used as admixture or mineral admixture, the product s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/02
CPCC04B18/021C04B18/027
Inventor 李军卢忠远侯莉罗健牛云辉
Owner SOUTHWEAT UNIV OF SCI & TECH
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