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Alkali-activated binder with no cement, method for fabricating mortar using it, and method for fabricating alkali-activated reinforcement mortar with no cement

A cement-free, alkali-active technology that is used in cement production, climate sustainability, sustainable waste treatment, etc. to achieve high resistance to freezing and melting, low heat of hydration reaction, high initial strength and long-term strength development

Inactive Publication Date: 2010-03-31
IND FOUND OF CHONNAM NAT UNIV
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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 in the prior art and provide a kind of cement-free alkali active binder, in industrial waste such as blast furnace slag, fly ash and metakaolin, add alkaline inorganic material appropriately to prepare a kind of cement-free alkali active adhesive Adhesive, which can significantly reduce the CO2 emission problem existing in Portland cement, is environmentally friendly, and has excellent performance

Method used

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  • Alkali-activated binder with no cement, method for fabricating mortar using it, and method for fabricating alkali-activated reinforcement mortar with no cement
  • Alkali-activated binder with no cement, method for fabricating mortar using it, and method for fabricating alkali-activated reinforcement mortar with no cement
  • Alkali-activated binder with no cement, method for fabricating mortar using it, and method for fabricating alkali-activated reinforcement mortar with no cement

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Effect test

no. 1 example

[0047]In the first embodiment of the present invention, the cement-free deactivated adhesive is formed by mixing Source material and Alkali mineral material.

[0048] At this time, the above-mentioned source materials include more than one of blast furnace slag (Blast-Furnace Slag), fly ash (FlyAsh) and metakaolin (Mata-Kaolin), and the above-mentioned basic inorganic materials include sodium silicate, powdered hydrogen More than one of sodium oxide, liquid water glass and liquid sodium hydroxide.

[0049] At this time, in the cement-free deactivated adhesive of the present invention, in the components constituting the above-mentioned basic inorganic materials, the weight ratio of the sodium material to the source material is 0.038 to 0.14, and the weight ratio of the above-mentioned sodium material to the source material determines the present invention. Invented the mechanical properties of cement-free deactivated adhesives such as fluidity, strength and drying shrinkage.

...

no. 2 example

[0086] The second embodiment of the present invention is a method for preparing cement-free alkali active mortar, mixing more than one of industrial wastes such as blast furnace slag (Blast-furnace slag), fly ash (Fly ash) and metakaolin (Mata-kaolin) The cement-free alkali-activated mortar is prepared from source materials, alkali-activated binders of alkaline inorganic materials including sodium materials, water and sand.

[0087] In this case, the alkaline inorganic material including sodium material includes one or more of sodium silicate, powdery sodium hydroxide, liquid water glass and liquid sodium hydroxide.

[0088] In this case, the basic inorganic material may include more than one of potassium silicate, calcium sulfur and dicalcium silicate. And when preparing deactivation mortar later on, also in order to improve fluidity, suppress drying shrinkage and include above-mentioned potassium silicate, calcium sulfate and dicalcium silicate.

[0089] In the above-mentio...

no. 3 example

[0132] The third embodiment of the present invention is a method for preparing cement-free reinforced alkali-active mortar, in a cement-free alkali-active binder including blast furnace slag, alkaline inorganic materials including sodium materials, calcium hydroxide, melamine water reducer and borate , mix dry sand and water.

[0133] In addition, the above-mentioned dry sand is selected to have a maximum diameter of 5 mm, and the mixing ratio is 2.5 relative to the above-mentioned cement-free deactivating binder.

[0134] In addition, the above-mentioned water was mixed in a weight ratio of 0.55 with respect to the above-mentioned cement-free deactivating binder.

[0135] The above-mentioned blast furnace slag is the main raw material used as the above-mentioned cement-free deactivating binder, and is slag produced when pig iron is extracted from iron ore.

[0136] That is, the cement-free reinforced deactivated mortar according to the third embodiment of the present inventi...

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Abstract

The present invention relates to a cement-free alkali activated binder in which alkaline inorganic materials are appropriately added to an industrial waste such as blast furnace slag, fly ash, meta kaolin and the like, a method for producing mortar using the same and a method for producing cement-free alkali activated reinforcement mortar. Specifically, the present invention relates to a cement-free alkali activated binder that is not only environmentally friendly as being capable of dramatically reducing the carbon dioxide emission, which has been remained as a problem for producing Portlandcement, but also has an excellent property, a method for producing mortar using the same and a method for producing cement-free alkali activated reinforcement mortar.

Description

technical field [0001] The invention relates to a cement-free alkali active adhesive made by appropriately adding alkaline inorganic materials to industrial waste such as blast furnace slag, fly ash and metakaolin, and is prepared by using the mortar of the cement-free alkali active adhesive Method and preparation method of cement-free reinforced alkali-active mortar, especially a kind of cement-free alkali-active adhesive that can greatly reduce the carbon dioxide emission problem existing in Portland cement, is beneficial to environmental protection, and has excellent performance. The mortar preparation method of the cement-free alkali active binder and the preparation method of the cement-free reinforced alkali active mortar. Background technique [0002] Typically, mortars used in the construction industry consist of a binder, water and aggregate, and in this case the binder used is typically Portland cement. But the above-mentioned Portland cement consumes a lot of ene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/04C04B18/14
CPCC04B28/26C04B7/1535C04B2111/72C04B28/14C04B2111/1037C04B28/006Y02P40/10Y02W30/91C04B14/106C04B18/08C04B18/141C04B7/3453C04B12/04C04B14/06C04B22/0013C04B22/062C04B22/064C04B24/223
Inventor 梁根赫宋晋圭李康硕
Owner IND FOUND OF CHONNAM NAT UNIV
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