Aluminum tobermorite containing refuse-oil based autoclaved aerated concrete block and production method

A technology of concrete blocks and autoclaved gas filling, which is applied in the field of new wall materials for construction, can solve the problems of large difference between the chemical composition of recycled concrete powder and muck, and the low replacement rate of recycled powder, so as to save nature The effects of mineral resources, stable bulk density, and stable quality

Inactive Publication Date: 2017-06-09
深圳市航天新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the replacement rate of recycled powder is low, and the chemical composition of recycled concrete powder is quite different from that of muck.

Method used

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  • Aluminum tobermorite containing refuse-oil based autoclaved aerated concrete block and production method
  • Aluminum tobermorite containing refuse-oil based autoclaved aerated concrete block and production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An autoclaved aerated concrete block with aluminum-containing tobermullite slag. According to the weight percentage, the main raw material ratio is: 29.81% of slag, 12% of cement, 25% of quicklime, 30% of sand, and 3% of desulfurized gypsum , foaming agent 0.07%, foam stabilizer 0.02%, nano titanium dioxide 0.05%, sodium alginate 0.05%.

[0038] Slag Chemical Composition SiO 2 Content 58.7%, Al 2 o 3 Content 25.3%; cement is China Resources PO42.5 cement, 28d strength 48MPa; quicklime calcium oxide content 90.1%, digestion time 12min, digestion temperature 70°C; SiO in sand 2 The content is 82%; the foaming agent is aluminum powder paste produced by Jinan Yinpeng Company; the foam stabilizer is a special admixture for aerated concrete prepared by Zhejiang Jiangshan Tianshun Biochemical Factory; nano-titanium dioxide is hydrophilic, golden red, particle size 40nm.

[0039] The production method flow is:

[0040] (a) Wet grinding of slag and sand with water, the grin...

Embodiment 2

[0047] The difference between an autoclaved aerated concrete block containing aluminum tobermullite slag and its production method in this embodiment and Example 1: according to the weight percentage, the proportion of main raw materials is: 20.81% of slag and 15% of cement , quicklime 25%, sand 36%, desulfurization gypsum 3%, foaming agent 0.07%, foam stabilizer 0.02%, nano titanium dioxide 0.05%, sodium alginate 0.05%.

Embodiment 3

[0049] The difference between the autoclaved aerated concrete block and its production method of aluminum-containing tobermullite slag in this embodiment and that of Example 1: according to the percentage by weight, the proportion of main raw materials is: 39.81% of slag and 13% of cement , quicklime 22%, sand 21%, desulfurization gypsum 4%, foaming agent 0.07%, foam stabilizer 0.02%, nano titanium dioxide 0.05%, sodium alginate 0.05%.

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Abstract

The invention relates to an aluminum tobermorite containing refuse-soil based autoclaved aerated concrete block and a production technology. The aluminum tobermorite containing refuse-oil based autoclaved aerated concrete block is prepared through the following raw materials in percentage by weight: 20-40% of refuse soil, 10-15% of cement, 15-25% of quick lime, 15-40% of sand, 3-5% of desulphurization gypsum, 0.05-0.08% of foaming agent, 0.01-0.03% of foam stabilizer, and 0.02-0.10% of additive, wherein the sum of the components in percentage by weight is 100%; the water-material ratio meets that the slurry flowing degree reaches 210-240mm. The aluminum tobermorite containing refuse-soil based autoclaved aerated concrete block is outstanding in performance; the aluminum tobermorite is prepared by reacting, so that the intensity and durability of the block are high; the technical requirements of qualified products in Autoclaved Aerated Concrete Block (GB11968-2006) B06 are met; a feasible method is provided to solve the problem that a large amount of urban construction refuse soil and sludge are piled and hardly utilized; in addition, the aluminum tobermorite containing refuse-soil based autoclaved aerated concrete block is simple in process, low in cost, and easy to popularize.

Description

technical field [0001] The invention relates to an aluminum-containing tobermullite autoclaved aerated concrete block and a production method using slag as a raw material, and belongs to the technical field of new wall materials for construction and production methods. One of the main raw materials in the present invention is construction dregs that are piled up in large quantities in cities and are difficult to handle and utilize, and relate to the field of solid waste disposal. Background technique [0002] Construction waste is a by-product of the city. Urban development and residents' lives have produced a large amount of construction waste, and muck and mud are one of the important ones. Before 2000, the land to be built and the low-lying areas in many cities were widely distributed. The land leveling project of the construction project was mainly "short square", and the production scale of muck and mud was relatively limited. It can be basically completed spontaneousl...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B38/02C04B111/40
CPCC04B28/04C04B2111/40C04B2201/20C04B2201/32C04B2201/50C04B18/16C04B22/064C04B14/06C04B22/145C04B22/04C04B14/305C04B24/38C04B2103/48C04B38/02
Inventor曹海琳翁履谦李绍彬杨旭张俊李国学郭悦
Owner深圳市航天新材科技有限公司