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Normal temperature compressed flyash brick and its making method

A technology of fly ash bricks and room temperature compression, applied in the field of building materials, can solve the problems of large energy consumption, can not be widely used, narrow application scope, etc., and achieves the effect of simple process, wide application scope and extended production period

Inactive Publication Date: 2005-03-02
肖劲东
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the patent application number is 91110966 invention patent application has announced a kind of 100% fly ash and binding agent (concentration is the water glass of 3-5%) and press molding, after the brick adobe of molding is dried through the tunnel chamber, The technology of sintering into bricks by gradually raising the temperature to 950°C, because this technology needs to go through the sintering process, the energy consumption is relatively large, and it will also cause great damage to the environment
As another example, the invention patent with the patent number of 93105763 discloses an industrial alkaline liquid containing calcium chloride as an activator for high-calcium fly ash to replace the fly ash silica produced by traditional cement and lime. The special technology of acid salt cutting, load-bearing fly ash bricks and non-load-bearing fly ash bricks and heavy fly ash hollow bricks has the disadvantage of narrow application range and cannot be widely used in ordinary fly ash and calcium chloride-free Areas of industrial waste liquid resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0012] The fly ash brick provided by the invention comprises components A and B, whose weight ratio is 100: 25-5; component A is digested with an aqueous solution of 10-30% soluble alkali metal silicate containing 0- After 30% aggregate fly ash, the water content in 8-12% fly ash, the weight ratio of fly ash and soluble alkali metal silicate solution is 100: 25-5; B component is the concentration It is 0.5-2.5% aqueous solution of polyenols.

[0013] The preparation method of the above-mentioned fly ash brick is: at normal temperature, using supramolecular technology, according to the production process requirements, the aqueous solution of alkali metal silicate (consolidation material 1) and the aqueous solution of polyenols (consolidation material 2 ) step by step into the loose fly ash, and driven by the external field force, it is formed by a brick making machine or a tile making machine, so that the fly ash is consolidated together, and then the finished brick can be made...

example 1

[0025] Example 1: Add dry fly ash to a 10% aqueous solution of sodium silicate in a ratio of 100:25 and stir evenly, reduce the water content of the mixed fly ash to less than 10% in a drying oven, and then press the ratio of 100:25 Add a 1% polyvinyl alcohol aqueous solution in proportion, and drive it with a WR-3 microwave sample processor for 1-5 minutes; place the processed sample on a universal material testing machine for extrusion molding, and then stand it for curing after drying After seven days, it will become a hard fly ash block after waterproof treatment.

example 2

[0026] Example 2: Add dry fly ash to 10% sodium silicate aqueous solution in a ratio of 100:25 and stir evenly, reduce the water content of the mixed fly ash to less than 10% in a dry box, and then press 100:25 Proportionally add polyvinyl alcohol aqueous solution with a concentration of 1%, and drive it for 1-5 minutes with a WR-3 microwave sample processor; place the processed sample on a YZ-120 brick-making machine for extrusion molding, and then dry it for static After seven days of maintenance, it can be made into hard fly ash bricks after waterproof treatment.

[0027] The external field force used in the present invention can adopt various rays, sound waves, ultrasonic waves, microwaves and mechanical vibrations or agitation, such as external field forces produced by ultrasonic generators, vibrating rods or mixers.

[0028] The consolidation material 1 used in the present invention can be an aqueous solution of soluble alkali metal silicates such as potassium silicate a...

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Abstract

A normal temp. compressor flyash brick contains a component A consisting of nitrified flyash and a solidifying assistant A, and a component B which is the solidifying assistant B (the aqueous solution of polyvinyl alcohol). The assistant A is the aqueous solution of soluble alkali-metal silicate. It is made up through gradually adding the said assistants A and B to flyash, shaping, solidifying, water-proofing treating, natural drying.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a normal-temperature compressed fly ash brick and a preparation method thereof. Background technique [0002] Among the numerous Chinese patent technologies related to fly ash bricks, most of them must add various solid binders (such as: cement, lime, gypsum, plant fiber...). For example, the patent application number is 91110966 invention patent application has announced a kind of 100% fly ash and binding agent (concentration is the water glass of 3-5%) and press molding, after the brick adobe of molding is dried through the tunnel chamber, The technology of sintering into bricks by gradually raising the temperature to 950°C, because this technology needs to go through the sintering process, relatively consumes a lot of energy and will cause great damage to the environment. As another example, the invention patent with the patent number of 93105763 discloses an industrial alka...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B18/08C04B28/26C04B41/45
CPCC04B41/009C04B28/26C04B41/45C04B18/08C04B2103/65Y02W30/91C04B24/2623C04B20/10
Inventor 肖劲东安黛宗
Owner 肖劲东
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