Kaolin-slag base geological polymer compound cementing material with enhanced composite organic macromolecule and preparation method thereof

A technology of composite gelling materials and organic polymers, which is applied in solid waste management, sustainable waste treatment, cement production, etc., can solve problems such as the patent report of geopolymers that have not been found to be enhanced by organic polymer emulsions, and achieve waste disposal High utilization rate, no discharge of three wastes, and the effect of improving microstructure

Inactive Publication Date: 2009-10-21
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0084] According to the data retrieval done by the applicant, no relevant patent reports on geopolymers enhanced by organic polymer emulsions have been found

Method used

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  • Kaolin-slag base geological polymer compound cementing material with enhanced composite organic macromolecule and preparation method thereof
  • Kaolin-slag base geological polymer compound cementing material with enhanced composite organic macromolecule and preparation method thereof
  • Kaolin-slag base geological polymer compound cementing material with enhanced composite organic macromolecule and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] Accurately weigh 1500g of inorganic raw materials (among them: 300g of kaolin, 1200g of slag), and use this as the basis of measurement (100%); adopt the external mixing method, the dosage of the activator sodium silicate is 15%, and dissolve the sodium silicate into quantitative water , water slag ratio (w / c) = 0.36. Zero-dosage organic composite polymer modifier (as a reference). Pour the inorganic raw materials into the double-rotation and double-speed slurry mixer for stirring and mixing; add the sodium silicate aqueous solution and stir; stir at a high speed to form a uniformly mixed slurry, and put the slurry into a 40mm×40mm×160mm iron triple mold . Vibrate on a plastic sand vibrating table and scrape it flat with a scraper to prepare a kaolin slag-based inorganic geopolymer composite cementitious material.

[0121] The molded specimens were cured for 24 hours under standard curing conditions. After demoulding, they were cured in a standard curing box for 3 day...

Embodiment 2

[0128] Accurately weigh 1500g of inorganic raw materials (among them: 300g of kaolin, 1200g of slag), and use this as the basis of measurement (100%); adopt the external mixing method, and the dosage of the activator sodium silicate is 15% of the inorganic raw materials; The dosage of the additive is 1% of the inorganic raw material (wherein the ratio of polyvinyl acetate latex powder and polyacrylate resin emulsion is 1:4).

[0129] Dissolve sodium silicate into quantitative water;

[0130] The polyvinyl acetate latex powder is dissolved in quantitative water, and then mixed with the polyacrylate resin emulsion to prepare an organic macromolecule compound modifier solution.

[0131] At room temperature, pour the inorganic raw materials into the double-rotation and double-speed slurry mixer for stirring and mixing; add the sodium silicate aqueous solution and stir; then add the organic polymer composite modifier solution, the water-slag ratio (w / c) = 0.36 , high-speed stirrin...

Embodiment 3

[0138] All preparation processes are the same as in Example 2. Just change the dosage of the organic macromolecule composite modifier to 5% (wherein the proportioning ratio of polyvinyl acetate latex powder and polyacrylate resin emulsion is 1: 4), the experimental results are shown in Table 5 and Table 6.

[0139] Table 5: Compressive strength of kaolin slag geopolymer composite cementitious materials reinforced by composite organic polymers

[0140]

[0141] Table 6: Flexural strength of kaolin slag geopolymer composite cementitious materials reinforced by composite organic polymers

[0142]

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Abstract

The invention discloses a kaolin-slag base geological polymer compound cementing material with enhanced composite organic macromolecule and a preparation method thereof. The prepared compound cementing material is generated by adding binary composite organic macromolecule polyvinyl acetate emulsion powder and polyacrylate resin emulsion into binary composite kaolin and slag under stimulation of sodium silicate. Adding quantity of the binary composite organic macromolecule polyvinyl acetate emulsion powder and polyacrylate resin emulsion is based on quantity of the binary composite kaolin and slag; the adding quantity of the binary composite organic macromolecule polyvinyl acetate emulsion powder and polyacrylate resin emulsion is 1%-15% of the quantity of the binary composite kaolin and slag; adding quantity of the sodium silicate is 15% of the quantity of the binary composite kaolin and slag; and water cement ratio is 0.36. The preparation process is free of three waste discharge and heating that the preparation process is environment-friendly. The kaolin-slag base geological polymer compound cementing material with enhanced composite organic macromolecule solves key technical problems of inorganic geological polymer cementing material, such as inefficient flexibility and bad long-term compression strength.

Description

technical field [0001] The invention belongs to the preparation of organic-inorganic composite materials, and in particular relates to a preparation method of a composite gelling material composed of a composite organic macromolecule reinforcing modifier and an inorganic aluminosilicate geopolymer. Background technique [0002] China is one of the countries rich in kaolin resources in the world. The proven reserves of high-quality kaolin are 3.5 billion tons; the proven reserves of coal-measure kaolin are 1.4 billion tons, and the prospective reserves are 18 billion tons; my country's non-coal-measure kaolin resource reserves rank in the forefront of the world and have The proven reserves are 1.5 billion tons. [0003] Granulated blast furnace slag is a kind of waste slag discharged from the iron and steel industry. Long-term stacking not only occupies a large amount of fertile land, but also causes serious environmental pollution. Combining kaolin and slag is used as the ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/153
CPCC04B28/006Y02P40/10Y02W30/91C04B12/04C04B14/106C04B18/141C04B24/2623C04B24/2641
Inventor 张耀君李圣徐德龙徐国明王宝强杨东峰刘厚存王楠王亚超
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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