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Fly ash -base mineral polymerized cement producing method and materials used therein

A technology of mineral aggregation and fly ash, which is applied in the field of mineral polymer materials and building materials, can solve the problem that the hazard of Portland cement cannot be substantially changed.

Inactive Publication Date: 2006-12-27
BEIJING LANDI GELIN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The amount of fly ash in fly ash Portland cement is generally low, so the hazards to Portland cement cannot be substantially changed

Method used

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  • Fly ash -base mineral polymerized cement producing method and materials used therein
  • Fly ash -base mineral polymerized cement producing method and materials used therein

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0044] 1. Firstly, sort the primary ash used to obtain ore-accumulated ash and a small amount of composite ash;

[0045] 2. Mineral ash and mineral agglomerate are mixed and ground into fly ash-based mineral aggregate material according to the following ratio:

[0046] Mineral ash 90 Mineral agglomerate 10

[0047] Mineral agglomeration agent composition is sodium sulfate 12%, sodium hydroxide 9%, lithium hydroxide 8.5%, sulfur-aluminum cement clinker 70%,

[0048] 8-Hydroxyquinoline 0.5%.

[0049] The product is a fly ash-based ore-aggregate material.

example 2

[0051] 1. Sorting the secondary ash used first to obtain ore-aggregated ash and composite ash;

[0052] 2. Mix and grind the ore ash and the ore agglomeration agent according to the following proportions to form the fly ash ore agglomerate material:

[0053] Mineral ash 98 Mineral agglomerate 2

[0054] The mineral agglomeration agent is composed of 50% of sodium sulfate, 19.97% of calcined gypsum, 30% of lithium carbonate, and 0.03% of 8-hydroxyquinoline.

[0055] 3. Grind the composite ash with the crushed Portland cement clinker and gypsum according to the following proportions to obtain finely ground materials:

[0056] Composite ash 35 Salt cement clinker 60

[0057] plaster 5

[0058] 4. Mix the finely ground material with the fly ash-based ore-polymer material in the following proportions to form the fly ash-based ore-polymer cement:

[0059] Grinding material 60 powder Coal ash-based ore aggregate material 40

[0060...

example 3

[0062] 1. First, sort the undisturbed ash used to obtain ore-accumulated ash and composite ash;

[0063] 2. Synthesize the ore ash and the ore agglomeration agent into the fly ash ore aggregate material according to the following ratio:

[0064] Mineral ash 95 Mineral agglomerate 5

[0065] The mineral aggregation agent is composed of 50% sodium thiosulfate, 19.99% alum, 30% NaOH, and 0.01% diisopropanolamine.

[0066] 3. Grind the composite ash with the crushed Portland cement clinker and gypsum according to the following proportions to obtain finely ground materials:

[0067] Composite ash 50 Portland cement clinker 42

[0068] plaster 8

[0069] 4. Mix the finely ground material with the fly ash-based ore-polymer material in the following proportions to form the fly ash-based ore-polymer cement:

[0070] Ground material 40 Fly ash based ore-aggregate material 60

[0071] The product is fly ash based mineral poly cement. ...

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Abstract

The invention discloses a powder coal base mineral polymeric material, which is characterized by the following: utilizing activity of glass in the powder coal; selecting specific composition and formulation mineral polymerization agent to excite; depolymerizing aluminium silicon glass; polymerizing to obtain inorganic material under certain condition; adopting part or most of powder coal base mineral polymerized material to replace cement clinker; forming polymerized cement with coal powder base mineral; fitting for serials of material such as powder coal ash base doping material, powder coal ash base mineral polymerized cement, composite silicate cement and so on.

Description

technical field [0001] The present invention relates to the field of mineral aggregate materials and building materials, specifically a production method of fly ash-based mineral aggregate cement, and a series of products prepared by the method: fly ash-based mineral aggregate materials, fly ash admixtures, Fly ash-based ore-polymer cement, fly ash cement, composite Portland cement and masonry cement. technical background [0002] 1. Mineral polymer materials [0003] Geopolymer is a concept proposed by French scientist Joseph Davidovits in the 1970s. Its original meaning refers to the aluminosilicate mineral polymer formed by geochemical action. The existence of this substance has been detected in some ancient concrete and mortar buildings (such as the pyramids in Egypt and the Colosseum in Rome). [0004] Mineral polymers are polymeric materials formed from metakaolin or aluminum-silicon industrial waste (fly ash, coal gangue, etc.) as the main raw material, which underg...

Claims

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Application Information

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IPC IPC(8): C04B7/28C04B7/02
CPCC04B28/021C04B7/28Y02P40/10C04B7/02
Inventor 王栋民陈良程
Owner BEIJING LANDI GELIN SCI & TECH