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Preparation method of baking-free high-strength fly ash ceramsite

A technology of fly ash ceramsite and fly ash, which is applied in the field of preparation of unburned high-strength fly ash ceramsite, can solve the problem of high cost of sintered fly ash ceramsite, low strength of unburned fly ash ceramsite, and market Problems such as high price, to achieve the effect of broadening joint utilization, reducing preparation cost, and simple molding

Active Publication Date: 2020-05-29
ANHUI GAODI BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problems in the prior art that sintered fly ash ceramsite is expensive, the market price is high, and the strength of non-burning fly ash ceramsite is low, the invention provides a kind of non-burning high-strength fly ash ceramsite, which has the advantages of low cost , convenient preparation, simple process, light weight and high strength, etc., can replace part of sand and gravel to prepare light aggregate concrete and prefabricated component production

Method used

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  • Preparation method of baking-free high-strength fly ash ceramsite

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Effect test

Embodiment 1

[0058] A preparation method of high-strength unburned fly ash ceramsite, the mass ratio of each raw material is as follows:

[0059] 2190 parts of secondary fly ash, 90 parts of quicklime, 60 parts of desulfurized gypsum, 390 parts of ordinary 425 Portland cement, 55 parts of instant sodium silicate;

[0060] A preparation method of high-strength unburned fly ash ceramsite, the preparation steps are as follows:

[0061] 1. First weigh 10% of the total amount of fly ash, that is, 219 parts of fly ash and 60 parts of gypsum, put them in an oven for quick drying, and then weigh 90 parts of quicklime and the prepared fly ash and gypsum , into a high-speed pulverizer, pulverized for 5 minutes;

[0062] 2. Weigh 1971 parts of fly ash and 390 parts of ordinary 425 Portland cement, and put them into the bucket;

[0063] 3. Mix the prepared mixed alkaline activator with the prepared raw materials evenly, and divide it into two parts, one part is 2550 parts, and the other part is 180 ...

Embodiment 2

[0068] A preparation method of high-strength unburned fly ash ceramsite, the mass ratio of each raw material is as follows:

[0069] 2190 parts of secondary fly ash, 90 parts of quicklime, 60 parts of desulfurized gypsum, 390 parts of ordinary 425 Portland cement in two parts, one part of 210 parts, one part of 180 parts, and 55 parts of instant sodium silicate;

[0070] A preparation method of high-strength unburned fly ash ceramsite, the preparation steps are as follows:

[0071] 1. First weigh 10% of the total amount of fly ash, that is, 219 parts of fly ash and 60 parts of gypsum, put them in an oven for quick drying, and then weigh 90 parts of quicklime and the prepared fly ash and gypsum , into a high-speed pulverizer, pulverized for 5 minutes;

[0072] 2. Weigh 1971 parts of fly ash and 210 parts of ordinary 425 portland cement, and put them into the bucket;

[0073] 3. Mix the prepared mixed alkaline activator with the prepared raw materials evenly;

[0074] 4. Take...

Embodiment 3

[0078] A method for preparing high-strength unburned fly ash ceramsite, the mass ratio of each raw material is as follows:

[0079] 2400 parts of secondary fly ash, 90 parts of quicklime, 60 parts of desulfurized gypsum, 450 parts of ordinary 425 Portland cement, divided into two parts, one part 255 parts, one part 195 parts, 60 parts instant sodium silicate;

[0080] A method for preparing high-strength unburned fly ash ceramsite, the preparation steps are as follows:

[0081] 1. First weigh 10% of the total amount of fly ash, that is, 240 parts of fly ash and 60 parts of gypsum, put them in an oven for quick drying, and then weigh 90 parts of quicklime and the prepared fly ash and gypsum , into a high-speed pulverizer, pulverized for 5 minutes;

[0082] 2. Weigh 2160 parts of fly ash and 255 parts of ordinary 425 portland cement, and put them into the bucket;

[0083] 3. Mix the prepared mixed alkaline activator with the prepared raw materials evenly;

[0084] 4. Weigh 2%...

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Abstract

The invention discloses a preparation method of baking-free high-strength fly ash ceramsite. The preparation method comprises four stages of preparation of a mixed alkaline excitant, uniform mixing ofthe excitant and raw materials, balling by a balling disc, and maintenance and molding, wherein the mixed alkaline excitant is prepared by mixing and crushing dried desulfurized gypsum, fly ash and quick lime according to a certain ratio. The baking-free high-strength fly ash ceramsite has the advantages of low construction cost, convenience in preparation, simple process, light weight, high strength and the like, and can replace part of sandstone to prepare lightweight aggregate concrete and produce prefabricated parts; the fly ash is used as a main raw material, cement, quicklime and desulfurizing gypsum are a mixed alkaline activator and a curing agent, and sodium silicate is a binder; the comprehensive utilization approach of industrial solid waste fly ash and industrial by-product gypsum is expanded while unfired high-strength fly ash ceramsite is prepared, and the concept of the green circular economy and the sustainable development of a building material is enhanced.

Description

technical field [0001] The invention belongs to the field of ceramsite preparation, and in particular relates to a preparation method of non-burning high-strength fly ash ceramsite. Background technique [0002] Ceramsite, a kind of ceramic particle. Its appearance features are mostly round and oval spheres, and there are also irregular gravel shapes. The interior of the ceramsite is a porous honeycomb structure, and the surface is a hard shell, showing ceramic or enamel. Ceramsite provides strength. At the beginning of the invention, ceramsite was mainly used in the field of building materials. With the development of ceramsite and people's continuous research on ceramsite, the application field of ceramsite is also expanding. At present, ceramsite is mainly used in construction, landscaping, Water treatment, catering hygiene, industrial filtration and other fields. [0003] Fly ash, also known as fly ash, is a solid waste from coal-fired power generation in thermal powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26
CPCC04B28/26C04B2201/50C04B2201/20C04B18/08C04B22/064C04B7/00C04B22/145
Inventor 姚华彦刘文博陈传明王静峰代义磊田野陈刚
Owner ANHUI GAODI BUILDING MATERIAL CO LTD
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