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Light insulating brick prepared from fly ash, boiler slag, construction garbage and straw and preparation thereof

A technology of construction waste and fly ash, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of lack of light insulation and high cost, and achieve low cost, good production conditions, and economical energy effect

Inactive Publication Date: 2008-11-05
李东升
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this type of fly ash brick does not have the performance of light insulation and high cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Dry the wet fly ash first, then crush the slag, discarded broken bricks, broken cement blocks and crushed stones into non-clay construction wastes with a particle size of less than 20 mm, and crush the straw into particles with a particle size of less than 20 mm. 15mm particles, then Na 2 SO 4 or NaOH or CaCl 2 Dissolve in water; after starting the mixer, add 36 parts of the above-mentioned fly ash, 6 parts of pulverized slag, 26 parts of construction waste, 3 parts of straw and 2 parts of gypsum into the forced mixer according to the weight percentage of the components. After 3-5 minutes of dry mixing, add 12 parts of calcium carbide slag or 6 parts of lime powder or 8 parts of lime paste and Na 2 SO 4 or NaOH or CaCl 2 1 part of aqueous solution, then add appropriate amount of water, wet mix for 3 to 5 minutes, and then transport to the storage bin through the conveyor belt; the materials in the storage bin are made into adobe through a brick making machine; At 0...

Embodiment 2

[0029] Dry the wet fly ash first, then crush the slag, discarded broken bricks, broken cement blocks and crushed stones into non-clay construction wastes with a particle size of less than 20 mm, and crush the straw into particles with a particle size of less than 20 mm. 15mm particles, then Na 2 SO 4 or NaOH or CaCl 2 Dissolve in water; after starting the mixer, add 55 parts of fly ash, 20 parts of crushed slag, 35 parts of construction waste, 18 parts of straw and 5 parts of gypsum into the mixer in sequence according to the weight percentage of the components, and dry mix After 3 to 5 minutes, add 25 parts of calcium carbide slag or 15 parts of lime powder or 16 parts of lime paste and Na 2 SO 4 or NaOH or CaCl 2 3 parts of aqueous solution, then add appropriate amount of water, wet mix for 3 to 5 minutes, and then transport to the storage bin through the conveyor belt; the materials in the storage bin are made into adobe through a brick making machine; At 0°C, sprinkle...

Embodiment 3

[0031] Dry the wet fly ash first, then crush the slag, discarded broken bricks, broken cement blocks and crushed stones into non-clay construction wastes with a particle size of less than 20 mm, and crush the straw into particles with a particle size of less than 20 mm. 15mm particles, then Na 2 SO 4 or NaOH or CaCl 2 Dissolve in water; after starting the mixer, add 45 parts of fly ash, 13 parts of crushed slag, 30 parts of construction waste, 9 parts of straw and 3 parts of gypsum into the mixer in sequence according to the weight percentage of the components, and dry mix After 3 to 5 minutes, add 18 parts of calcium carbide slag or 7 parts of lime powder or 9 parts of lime paste and Na 2 SO 4 or NaOH or CaCl 2 2 parts of aqueous solution, then add appropriate amount of water, wet mix for 3 to 5 minutes, and then transport to the storage bin through the conveyor belt; the materials in the storage bin are made into adobe through a brick making machine; At 0°C, sprinkle wa...

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Abstract

The invention relates to a light-weight insulating brick produced by adopting pulverized fuel ash, furnace slag, building waste and stalk and a production method thereof. The materials of pulverized fuel ash, furnace slag, building waste, stalk, lime power, cement, gypsum, Na2SO4 and water are prepared according to the following mass ratio and are then mixed, molded and cured to product the light-weight insulating brick; the light-weight insulating brick comprises the following weight percentage of all ingredients of the raw materials: 36-55 parts of pulverized fuel ash, 6-20 parts of furnace slag, 26-35 parts of building waste, 3-15 parts of stalk, 12-15 parts of carbide slag, 8-14 parts of cement, 2-5 parts of gypsum, 1-3 parts of Na2SO4 and proper amounts of water. The method utilizes the industrial and agricultural wastes such as the pulverized fuel ash, furnace slag, building waste, stalk and so on to produce the light-weight insulating brick, and the brick is light in weight, heat-insulating, has high strength and meets the quality standard; furthermore, the production technique is simple and no wastewater, waste residue or exhaust gases is discharged, so the invention is energy-saving, pollution-free, low-cost and has good production condition.

Description

technical field [0001] The invention relates to a building wall material and a preparation method thereof, in particular to a lightweight thermal insulation brick prepared by using fly ash, slag, construction waste and straw and a preparation method thereof. Background technique [0002] There are many varieties of wall bricks produced from fly ash, such as aerated fly ash bricks, steam-cured fly ash bricks, sintered fly ash bricks, and non-sintered fly ash bricks. Application No. 98114315 discloses the "steam-cured fly ash load-bearing brick formula and process" using raw materials including fly ash, lime, gypsum, and aggregate, wherein the aggregate is power plant bottom slag or limestone slag. Application No. 01103113.1 disclosed "a fly ash brick and its manufacturing method" uses raw materials including fly ash, calcium hydroxide, aggregate and water, wherein the aggregate is crushed stone, sand, and cinder. Therefore, this type of fly ash brick does not have the perfor...

Claims

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Application Information

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IPC IPC(8): C04B18/08C04B18/10C04B18/16C04B18/24C04B28/16C04B28/10
CPCC04B28/02C04B2111/28C04B28/10C04B2111/40Y02W30/91C04B18/0481C04B18/06C04B18/08C04B18/141C04B18/16C04B18/24C04B20/0076C04B20/02C04B20/026C04B22/143C04B22/147C04B40/0028C04B40/0277C04B7/02C04B18/167C04B20/04C04B22/062C04B22/064C04B22/124
Inventor 李东升
Owner 李东升
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