Powdered coal ash brick

A technology for fly ash bricks and fly ash, which is applied in building components, sustainable waste treatment, solid waste management, etc., can solve the problems of large production volume, affecting brick output, and large tonnage, etc., to shorten the delivery cycle and save money. Energy, the effect of increasing production

Inactive Publication Date: 2007-06-20
刘洪川
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large production volume, large tonnage, and 24-hour soaking process, bricks take up a lot of man-hours after entering the pool, draining, soaking, draining, and exiting the pool, which directly affects the output of bricks.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1, it is made up of fly ash, hard material and additive, and hard material is cement, lime or calcium carbide slag.

[0037] Produce by following method step:

[0038] 1. Stir the mixture of fly ash and hard materials in proportion;

[0039] 2. Add additive No. 1 liquid and mix evenly, that is, add 4.8--10.8 parts of No. 1 liquid according to 100 parts of the mixture. The components and volumetric percentages of No. 1 liquid are sodium silicate 1-20%, and the rest is water;

[0040] No. 1 liquid specific embodiment sees the following table:

[0041] Element

Weight percentage content (%)

example

1

example

2

example

3

example

4

example

5

example

6

example

7

example

8

example

9

Silicic acid

sodium

1

10

20

3

5

7

12

15

18

water

99

90

80

97

95

93...

Embodiment 2

[0047] Embodiment 2, it can also be produced according to the following steps:

[0048] 1. Stir the mixture of fly ash and hard materials in proportion;

[0049] 2. Uniformly mix and react additive No. 1 liquid and No. 2 liquid in a ratio of 1.5:1 to form a slurry for later use;

[0050] 3. Add the dissolved slurry into the mixture and stir for 5 minutes. The ratio of the dissolved slurry to the mixture is 8-18:100, which can be determined according to the water content of the fly ash. The more water content, the smaller the ratio;

[0051] 4. Sending and pressing equipment for pressing and stacking;

[0052] 5. It can leave the factory after two times of water curing or natural curing.

Embodiment 3

[0054] 1. Stir the mixture composed of 90% fly ash and 10% cement first;

[0055] 2. Add the additive No. 1 liquid and mix evenly. Add 7.5 parts of No. 1 liquid to 100 parts of the mixture. The components and volumetric weight percentages of No. 1 liquid are 20% sodium silicate and 80% water;

[0056] 3. Add the additive No. 2 liquid and mix evenly, add 5 parts of No. 2 liquid according to 100 parts of the mixture, and the components and bulk density percentage of No. 2 liquid are 10% of sulfuric acid and 90% of water;

[0057] 4. Sending and pressing equipment for pressing and stacking;

[0058] 5. It can leave the factory after two times of water curing.

[0059] The strength is MU10, which can be used as non-load-bearing bricks.

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PUM

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Abstract

A brick made of powdered coal ash without clay, sinter, vapour curing and immersion is made up through proportioning mixing powdered coal ash with hard material, proportionally adding the aqueous solution of sodium silicate and the aqueous solution of sulfuric acid, shaping and curing. Its advantages are high productivity, high resistance to ageing and corrosion, high strength, light weight and reducing environmental pollution.

Description

[0001] Field: [0002] The invention relates to a method for preparing fly ash bricks, belonging to the field of building materials. Background technique: [0003] The present invention is an improvement to the patent No. 89109395 high-strength fly ash three-free brick. The three-free is clay-free, sinter-free and steam-free. This kind of brick must combine fly ash with hard materials such as lime, cement or carbide slag. After mixing and pressing the adobe, after drying under natural conditions, it needs to be soaked in 3% sodium silicate aqueous solution for 24 hours to increase the strength. Due to the large production volume, large tonnage, and 24-hour soaking process, bricks take up a lot of man-hours after entering the pool, draining, soaking, draining, and exiting the pool, which directly affects the output of bricks. Invention content: [0004] The purpose of the present invention is to overcome the above-mentioned weak point in the prior art, and provide a kind of ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C04B28/18C04B28/26C04B18/08E04C1/00
CPCC04B2111/40C04B28/26Y02W30/91C04B14/00C04B18/06C04B22/141C04B18/08
Inventor刘洪川刘壮丽
Owner刘洪川