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Non-autoclaved silicon-manganese slag aerated concrete thermal insulation building block and preparation method thereof

A technology of aerated concrete and thermal insulation blocks, which is applied in the field of building materials, can solve the problems of difficult recycling and utilization of waste residues, shortage of resources, etc., and achieve the effects of simple and effective maintenance methods, reducing production costs and reducing costs.

Pending Publication Date: 2021-11-30
LIAONING UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, fly ash has a shortage of resources in many places, while other industrial solid wastes such as silicomanganese slag have accumulated seriously, and the recycling of waste slag has become a major problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An autoclaved silicon-manganese slag aerated concrete insulation block, comprising the following components in parts by weight: 80 parts of silicon-manganese slag, 45 parts of silica fume, 35 parts of quicklime, 62 parts of cement, 7 parts of desulfurized gypsum, and 0.25 parts of aluminum powder 1.5 parts of anhydrous sodium sulfate, 0.1 part of triethanolamine, 3.5 parts of sodium lauryl sulfate, 120 parts of water;

[0025] Among them, the content of silicon dioxide in silicomanganese slag is 30-45%, the content of aluminum oxide is 5-10%, the content of ferric oxide is 92%; the gypsum is desulfurized gypsum, and the lime is quicklime; the cement is silicic acid Salt cement, the strength grade is 42.5, the specific surface area is 357m2 / kg; the weight percentage of calcium oxide in the lime is ≥70%, and the storage time is not more than three months; the Al content in the aluminum powder is ≥98%, and the active Al2O3 Content ≥ 70%; the sodium sulfate is an early stre...

Embodiment 2

[0035] An autoclaved silico-manganese slag aerated concrete insulation block, comprising the following components: 85 parts of silico-manganese slag, 45 parts of silica fume, 37 parts of quicklime, 55 parts of cement, 7 parts of desulfurized gypsum, 0.25 parts of aluminum powder, no 1.5 parts of sodium sulfate water, 0.1 parts of triethanolamine, 3.5 parts of sodium lauryl sulfate, 120 parts of water;

[0036] Among them, the content of silicon dioxide in silicomanganese slag is 30-45%, the content of aluminum oxide is 5-10%, the content of ferric oxide is 92%; the gypsum is desulfurized gypsum, and the lime is quicklime; the cement is silicic acid Salt cement, the strength grade is 42.5, the specific surface area is 357m2 / kg; the weight percentage of calcium oxide in the lime is ≥70%, and the storage time is not more than three months; the Al content in the aluminum powder is ≥98%, and the active Al2O3 Content ≥ 70%; the sodium sulfate is an early strength agent, and the sodi...

Embodiment 3

[0046]An autoclaved silicomanganese slag aerated concrete insulation block, comprising the following components: 75 parts of silicomanganese slag, 45 parts of silica fume, 32 parts of quicklime, 70 parts of cement, 7 parts of desulfurized gypsum, 0.25 parts of aluminum powder, 1.5 parts of sodium sulfate water, 0.1 parts of triethanolamine, 3.5 parts of sodium lauryl sulfate, 120 parts of water;

[0047] Among them, the content of silicon dioxide in silicomanganese slag is 30-45%, the content of aluminum oxide is 5-10%, the content of ferric oxide is 92%; the gypsum is desulfurized gypsum, and the lime is quicklime; the cement is silicic acid Salt cement, the strength grade is 42.5, the specific surface area is 357m2 / kg; the weight percentage of calcium oxide in the lime is ≥70%, and the storage time is not more than three months; the Al content in the aluminum powder is ≥98%, and the active Al2O3 Content ≥ 70%; the sodium sulfate is an early strength agent, and the sodium sul...

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Abstract

The invention discloses a non-autoclaved silicon-manganese slag aerated concrete thermal insulation building block and a preparation method thereof, and belongs to the technical field of building materials. The non-autoclaved silicon-manganese slag aerated concrete thermal insulation building block comprises the following raw materials by weight: 75-85 parts of silicon-manganese slag, 40-50 parts of silica fume, 30-40 parts of lime, 55-70 parts of cement, 5-10 parts of gypsum, 0.2-0.3 part of aluminum powder, 1-2 parts of sodium sulfate, 0.05-0.15 part of triethanolamine, 3-4 parts of lauryl sodium sulfate, and 110-130 parts of water. The preparation method comprises the following steps: putting ball-milled binding materials such as the silicon-manganese slag, the cement and the gypsum into a stirrer for dry stirring; fully mixing the above, adding water, stirring to prepare slurry, adding aluminum powder into the slurry, and fully and quickly stirring; pouring the slurry into a mold, and standing for pre-curing; and then cutting a green body, and then maintaining the green body. According to the process, the silicon-manganese slag is applied to preparation of the aerated concrete instead of fly ash, so that the problem of low content of active SiO2 in the silicon-manganese slag is solved, the problem of fly ash shortage successively appearing in some areas is also solved, and pollution caused by accumulationof the silicon-manganese slag is reduced.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an autoclaved silicomanganese slag aerated concrete thermal insulation block and a preparation method thereof. Background technique [0002] my country is a country with large building energy consumption. In response to the national concept of green environmental protection and the goal of 65% building energy saving, buildings need new building materials that are more energy-saving and environmentally friendly. At present, fly ash has a shortage of resources in many places, and other industrial solid wastes such as silicomanganese slag have accumulated seriously, and the recycling of waste slag has become a major problem. In addition, most enterprises in my country currently produce aerated concrete by autoclave autoclaving, which has high production costs, high production capacity, and a high risk factor. The block is maintained in an environment with low ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/02C04B18/14
CPCC04B28/144C04B18/144C04B18/146C04B2201/20C04B2201/50C04B2201/32C04B22/064C04B7/02C04B22/04C04B22/147C04B24/122C04B24/16C04B38/02Y02W30/91
Inventor 王学志孙鑫蕊孔祥清陈海宇
Owner LIAONING UNIVERSITY OF TECHNOLOGY
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