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Autoclaved fly ash brick for construction and manufacturing method thereof

An autoclaved fly ash brick and construction technology, applied in the field of building materials, can solve the problems of large ecological environment damage, large clay consumption, and difficult operation, so as to achieve easy control of process operation, save farmland resources, and protect ecology environmental effects

Inactive Publication Date: 2010-09-29
GAOMI FURI BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large amount of clay consumed in the manufacture of clay bricks, the damage to farmland and the ecological environment is relatively large. Therefore, in view of the national restrictions on clay bricks, the encouragement measures for environmentally friendly standard bricks, and the current load-bearing phenomenon of residential buildings , there have been many light-weight standard brick manufacturers using fly ash and quicklime as the main raw materials in China, but the disadvantage of this method is that the properties of quicklime will change after adding water, not only is it not easy to operate, but also the process is not easy to control, resulting in product quality. unstable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] First mix the raw materials rice stone, calcium carbide slag and stone powder according to the weight ratio of 12:21:39, and continuously mix the raw materials with a shovel to make a mixture, and place the mixture for 64 hours to make the mixture The material is fully homogenized, and then the fully homogenized mixture is crushed by a high-fine crusher.

[0020] Grind the boiler slag into a powder by ball mill, then mix the crushed mixture with the powdered boiler slag and fly ash in a weight ratio of 70:17:13, and add to the forced mixer The water is mixed evenly, and water is added to make a mixed material with a water content of 10 wt%, and then the mixed material is pressed and formed by a fully automatic hydraulic brick machine to obtain a semi-finished brick adobe.

[0021] Send the semi-finished bricks into the autoclave for autoclave curing. First, turn on the vacuum pump for vacuuming. When the pressure in the autoclave is -0.05MPa, turn off the vacuum pump; ...

Embodiment 2

[0024] First mix the raw materials rice stone, calcium carbide slag and stone powder according to the weight ratio of 9:20:41, and continuously mix the raw materials with a shovel to make a mixture, and place the mixture for 64 hours to make the mixture The material is fully homogenized, and then the fully homogenized mixture is crushed by a high-fine crusher.

[0025] Grind the boiler slag into powder by ball mill, then mix the crushed mixture with the powdered boiler slag and fly ash in a weight ratio of 70:15:15, and add Mix the water evenly, add water to make a mixed material with a water content of 15 wt%, and then press the mixed material through a fully automatic hydraulic brick machine to obtain a semi-finished brick adobe.

[0026] Send the semi-finished bricks into the autoclave for autoclave curing. First, turn on the vacuum pump for vacuuming. When the pressure in the autoclave is -0.05MPaa, turn off the vacuum pump; The pressure reaches 0.95MPa within 3 hours; ke...

Embodiment 3

[0029] First mix the raw materials rice stone, calcium carbide slag and stone powder in a weight ratio of 10:20:40, and continuously mix the raw materials with a shovel to make a mixture, and place the mixture for 64 hours to make the mixture The material is fully homogenized, and then the fully homogenized mixture is crushed by a high-fine crusher.

[0030] Grind the boiler slag into a powder by ball mill, then mix the crushed mixture with the powdered boiler slag and fly ash in a weight ratio of 72:16:12, and add to the forced mixer Mix the water evenly, add water to make a mixed material with a water content of 13wt%, and then press the mixed material through a fully automatic hydraulic brick machine to obtain a semi-finished brick adobe.

[0031] Send the semi-finished bricks into the autoclave for autoclave curing. First, turn on the vacuum pump for vacuuming. When the pressure in the autoclave is -0.05MPaa, turn off the vacuum pump; The pressure reaches 0.95MPa within 2...

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Abstract

The invention discloses an autoclaved fly ash brick for construction, which is prepared from the following raw materials by weight in mixture ratio: 13 to 17 of boiler slag, 13 to 17 of fly ash, 8 to 12 of granolithic, 18 to 22 of carbide slag and 38 to 42 of mountain flour. When the fly ash brick is prepared, the boiler slag, the fly ash, the granolithic, the carbide slag and the mountain flour which are ground into a powder shape are mixed evenly according to the mixture ratio by weight of 13 to 17:13 to 17:8 to 12:18 to 22:38 to 42, water is added, and a mixed material with the water content of 10 to 15wt% is prepared and is autoclaved and cured to prepare a finished product after the mixed material is pressed and molded. The invention has simple technological formula, easy control of the technological operation and stable product quality and is a novel energy-saving environment-friendly process.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an autoclaved fly ash brick for building and a preparation method thereof. Background technique [0002] At present, the wall materials for construction mainly include clay solid bricks and hollow bricks, and concrete blocks with fly ash as the main raw material, among which clay bricks are the leading products. However, due to the large amount of clay consumption in the manufacture of clay bricks, the damage to farmland and the ecological environment is relatively large. Therefore, in view of the national restrictions on clay bricks, the encouragement measures for environmentally friendly standard bricks, and the current load-bearing phenomenon of residential buildings , there have been many light-weight standard brick manufacturers using fly ash and quicklime as the main raw materials in China, but the disadvantage of this method is that the properties of quicklime w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B30/00C04B18/08C04B18/10
CPCC04B28/08C04B2111/00068C04B2111/00017Y02W30/91C04B14/02C04B14/14C04B18/067C04B18/08C04B40/0028C04B40/024C04B40/0259
Inventor 徐义德宋立梅刘大伟
Owner GAOMI FURI BUILDING MATERIALS
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