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Autoclaved aerated concrete building block and preparation method thereof

An autoclaved aerated and block technology, which is applied in the field of building lightweight walls-autoclaved aerated concrete blocks and its preparation, can solve the problem of polluting the ecological environment, insufficient and large consumption of polishing waste, and no display. The advantages of comprehensive utilization of resources and other issues have achieved the effects of reducing pollution, promoting ecological protection and increasing consumption.

Inactive Publication Date: 2014-05-07
周石镭 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Failed to fully and massively consume the polishing waste produced by ceramic enterprises
In the face of these ceramic polishing wastes are still produced in large quantities, seriously polluting the ecological environment, and still have not shown the advantages of comprehensive utilization of resources

Method used

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  • Autoclaved aerated concrete building block and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Embodiment 1, (volume density 500kg / m 3 )

[0057] According to (ACB A3.5 B05 600×200×250 GB 11968) standard

[0058] Making an Autoclaved Aerated Concrete Block

[0059] 55 parts of ceramic polishing waste; 15 parts of fine sand; 20 parts of quicklime; 12 parts of cement; 0.07 parts of aluminum powder; 4 parts of gypsum;

[0060] Its production process is as follows (such as figure 1 shown):

[0061] 1. Take raw materials

[0062] Take 275 kg of ceramic polishing waste;

[0063] Note: The particle size of ceramic polishing waste is 200-600 mesh. The waste can be directly extracted from the bottom of the sedimentation tank in the ceramic tile enterprise. 275 kg of ceramic polishing waste is the net weight of dewatering. Ceramic polishing scrap can also be obtained at the ceramic polishing scrap dump. During use, if other sundries are found in the ceramic polishing waste, the sundries should be removed, and the dry waste should be mixed with water to make slurry...

Embodiment 2

[0083] Embodiment 2 (density 600kg / m 3 )

[0084] According to (ACB A5 B06 600×200×250 GB 11968) standard

[0085] Making an Autoclaved Aerated Concrete Block

[0086] Get: 55 parts of ceramic polishing waste (330 kg); 15 parts of fine sand (90 kg); 20 parts of quicklime (120 kg); 12 parts of cement (72 kg); 0.06 part of aluminum powder (0.36 kg); 4 parts of gypsum ( 24 kg); (water-material ratio: 0.65:1)

[0087] Net weight of raw materials for preparation: 636 kg. Getting material and implementing technology are identical with embodiment 1.

[0088] Standard: GB 11968-1997 test results

[0089] Dry bulk density≤630kg / m 3 629kg / m 3

[0090] Compressive strength (average) ≥ 5Mpa 5.2Mpa

[0091] Minimum single block ≥ 4Mpa 4.1Mpa

[0092] Conclusion: reach the national standard.

Embodiment 3

[0093] Embodiment 3 (density 700kg / m 3 )

[0094] According to (ACB A7.5 B07 600×200×250 GB 11968) standard

[0095] Making an Autoclaved Aerated Concrete Block

[0096] Get: 55 parts of ceramic polishing waste (385 kg); 15 parts of fine sand (105 kg); 20 parts of quicklime (140 kg); 12 parts of cement (84 kg); 0.05 part of aluminum powder (0.35 kg); 4 parts of gypsum ( 28 kg); (water-material ratio: 0.65:1)

[0097] Net weight of raw materials for preparation: 742 kg. Getting material and implementing technology are identical with embodiment 1,2.

[0098] Standard: GB 11968-1997 test results

[0099] Dry bulk density≤730kg / m 3 728.7kg / m 3

[0100] Compressive strength (average) ≥ 7.5Mpa 7.7Mpa

[0101] The minimum value of a single block ≥ 6Mpa 6.2Mpa

[0102] Conclusion: reach the national standard.

[0103] Examples 1, 2, and 3 are under the same production process conditions, under the condition that the product raw material ratio is constant and the che...

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Abstract

The invention discloses an autoclaved aerated concrete building block, which is prepared by adding water into 50 to 55 weight parts of ceramic polishing waste, 10 to 15 weight parts of fine sand, 20 to 24 weight parts of calcined lime, 10 to 20 weight parts of cement, 0.05 to 0.09 weight part of aluminum powder and 3 to 5 weight parts of gypsum. The invention also discloses a preparation method for the autoclaved aerated concrete building block, which comprises the production processes of raw material fetching, slurry preparation, proportioning and pouring, standing and curing in a hot chamber, blank cutting, grouping, autoclaved maintenance, finished product inspection, recycle of waste liquid, waste slag and waste products and the like. The obtained autoclaved aerated concrete building block has the characteristics of high forming speed, light weight, high strength, heat insulation, sound insulation, good fireproof performance, low elasticity, seismic resistance, convenient construction and the like. The preparation method realizes utilization of the ceramic polishing waste, reduces the discharge of wastes of the ceramic industry, and is favorable for protection of ecological environment.

Description

technical field [0001] The invention relates to a lightweight building wall-autoclaved aerated concrete block and a preparation method thereof, in particular to an autoclaved aerated concrete block (lightweight brick) made of ceramic polishing waste as the main raw material and its preparation method. Background technique [0002] At present, in the production process of building ceramic flat tiles, three major pollutions are mainly produced: waste water, waste gas and solid waste. Among them, the solid waste is mainly the (fine powder, wet) waste generated by the grinding and polishing process in the process of manufacturing ceramic flat tiles - collectively referred to as ceramic polishing waste. A general-scale ceramic tile factory produces more than 100 tons of polishing waste a day. [0003] In the current ceramic industry, dozens of enterprises are often concentrated in one industrial area, and more than one thousand tons of ceramic polishing waste are produced every...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/02C04B28/14
Inventor 周石镭梁观路陶元国蒋文福
Owner 周石镭
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