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Geopolymer cement cover plate concrete and preparation method thereof

A geopolymer cement and concrete technology, applied in the field of concrete, can solve the problems of high price, strong corrosion, inconvenient construction operation, low utilization rate of fly ash, etc., and achieve excellent impermeability, high strength, good workability and The effect of mechanical properties

Inactive Publication Date: 2019-01-04
福建瑞森水泥制品发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this patent utilizes fly ash to prepare a kind of alkali-activated fly ash / slag foam concrete, the utilization rate of fly ash is low, and in this invention the activator is a mixture of water glass and sodium hydroxide, the price is higher, and Strong corrosiveness is not convenient for construction operation

Method used

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preparation example Construction

[0036] The preparation method of above-mentioned geopolymer cement cover slab concrete, concrete steps are:

[0037] S1. Metering: Measure each component material according to the proportion of each component;

[0038] S2. Mix dry materials: pour sand, stone, fly ash and ordinary Portland cement into the mixer and dry mix for 1-3 minutes;

[0039] S3. Preparation of activator: Dissolving Na2SO4 in water above 30°C to form an activator solution, the water temperature is preferably 35°C-50°C;

[0040] S4. Stir evenly: pour the activator solution into the mixture obtained in step S2, and stir for 2-5 minutes;

[0041] S5. Vibration forming: Vibration adopts a combination of vibrating table vibration and manual compaction, and the vibration time is based on the principle of compacting the mixture, and the time is 10 to 30 seconds.

Embodiment 1

[0043] A geopolymer cement cover concrete is composed of Na2SO4, ordinary Portland cement, fly ash, sand, stone and water. According to the mass percentage, Na2SO4: ordinary Portland cement: fly ash (raw ash): sand: Stone: water = 0.06: 1.00: 2.33: 3.34: 6.68: 1.02.

[0044] The concrete steps of its preparation method are:

[0045] S1. Metering: Measure each component material according to the above ratio;

[0046] S2, mixing dry materials: pour sand, stone, fly ash and ordinary portland cement into the mixer and dry mix for 2 minutes;

[0047] S3. Preparation of activator: dissolving Na2SO4 in water above 30° C. to form activator solution;

[0048] S4. Stir evenly: pour the activator solution into the mixture obtained in step S2, and stir for 3 minutes;

[0049] S5. Vibration forming: Vibration adopts a combination of vibrating table vibration and manual compaction. The vibration time is based on the principle of compacting the mixture, preferably 10 to 30 seconds.

[0050...

Embodiment 2

[0052] A geopolymer cement cover concrete is composed of Na2SO4, ordinary Portland cement, fly ash, sand, stone and water. According to the mass percentage, Na2SO4: ordinary Portland cement: fly ash (raw ash): sand: Stone: water = 0.10: 1.00: 2.50: 3.5: 7.00: 1.00.

[0053] The concrete steps of its preparation method are:

[0054] S1. Metering: Measure each component material according to the above ratio;

[0055] S2, mixing dry materials: pour sand, stone, fly ash and ordinary portland cement into the mixer and dry mix for 2 minutes;

[0056] S3. Preparation of activator: dissolving Na2SO4 in water above 30° C. to form activator solution;

[0057] S4. Stir evenly: pour the activator solution into the mixture obtained in step S2, and stir for 3 minutes;

[0058] S5. Vibration forming: Vibration adopts a combination of vibrating table vibration and manual compaction. The vibration time is based on the principle of compacting the mixture, preferably 10 to 30 seconds.

[005...

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Abstract

The invention discloses geopolymer cement cover plate concrete and a reparation method thereof. The geopolymer cement cover plate concrete comprises the following materials: Na2SO4, ordinary Portlandcement, coal ash (untreated power plant raw ash), sand, stone and water; the preparation method comprises the following steps: metering, mixing dry materials, preparing an excitant, uniformly stirringand performing vibration formation. The geopolymer cement cover plate concrete adopts geopolymer cement (comprising Na2SO4, ordinary Portland cement and coal ash) to replace a large amount of the traditional ordinary Portland cement, ensures that the cover plate concrete is excellent in workability, and the strength of the cover plate concrete is higher than that of ordinary Portland cement coverplate concrete, can further utilize a large amount of power plant raw coal ash, and has the advantages of low cost and good environmental protection property.

Description

technical field [0001] The invention relates to concrete, in particular to a geopolymer cement cover concrete and a preparation method thereof. Background technique [0002] The total amount of concrete produced in the world is as high as 12 billion tons per year, of which 1.6 billion tons of ordinary Portland cement are consumed, and about 0.8 tons of C02 are emitted into the atmosphere for 1 ton of ordinary Portland cement produced. According to statistics, the carbon emissions of the cement manufacturing industry account for 5% to 8% of the global carbon emissions, and the production of ordinary Portland cement will emit sulfur dioxide and other particulate matter, which will aggravate the greenhouse effect and environmental pollution. [0003] At present, the annual output of fly ash in my country reaches 300 million to 400 million tons. Except that fly ash is used well as a mixture in the cement industry, other waste residues are rarely used and a large amount is not us...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00293C04B2201/50C04B22/147C04B18/08C04B14/02C04B14/06
Inventor 陆志军陈东建
Owner 福建瑞森水泥制品发展有限公司
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