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Ore tailings ceramsite air brick and preparation method thereof

A technology of ore tailings and hollow bricks, which is applied in the field of building materials, can solve the problems of thermal insulation and compressive strength that cannot meet the national thermal insulation or quality control requirements, and achieve improved thermal insulation performance, mechanical strength, low density, and reduced Effects of Environmental Pollution

Inactive Publication Date: 2013-12-04
HEXIAN MINGSHENG ENVIRONMENTAL PROTECTION MATERIAL
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, the thermal insulation and compressive strength of the hollow bricks on the market still cannot meet the national thermal insulation or quality control requirements.

Method used

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Embodiment Construction

[0015] A kind of ore tailings ceramsite hollow brick, made of the following raw materials (kg): shale 25, coal gangue 40, construction waste 15, modified loess 12, quicklime powder 10, iron ore tailings 20, rice husk 8 , barite 10, limestone 12, volcanic ash 6, aluminum silicate fiber 4, calcium sulfate whisker 3, appropriate amount of water.

[0016] The preparation method of described modified loess is as follows: get a certain amount of loess and add 3% wollastonite powder, 4% vermiculite powder, 2% cinder and 1.5% vinyl tris (β-methoxyethoxy) Silane, stirred at 3000rpm for 10min, calcined at 750°C for 1h, crushed after cooling, then added 2% sodium metasilicate, 2% carboxymethyl cellulose and 3% sodium tripolyphosphate equivalent to the weight of loess, and stirred at 2000rpm for 20min. Can.

[0017] A preparation method of ore tailings ceramsite hollow brick, comprising the following steps:

[0018] (1) Mechanically pulverize ore tailings, rice husks, co...

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Abstract

The invention discloses an ore tailings ceramsite air brick and a preparation method thereof. The ore tailings ceramsite air brick is prepared from the following raw materials in parts by weight: 20-30 parts of slate, 30-50 parts of coal gangue, 15-20 parts of building rubbish, 10-15 parts of modified loess, 8-12 parts of quicklime powder, 15-25 parts of ore tailings, 5-10 parts of rice husk, 8-12 parts of barite, 10-15 parts of limestone, 5-10 parts of volcanic ash, 3-6 parts of aluminum silicate fiber, 2-4 parts of calcium sulfate whisker and a defined amount of water. According to the invention, ore tailings are taken as the main raw material to prepare ceramsite to produce the air brick, which not only reduces a great amount of cultivated land occupied by accumulated iron ore tailings and environment pollution, but also improves the heat-insulating property and mechanical strength of the air brick. The air brick provided by the invention has the advantages of high strength, low density, good heat-insulating property, anti-seismic property and weatherability, environmental friendliness, energy conservation and the like and is suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to an ore tailing ceramsite hollow brick and a preparation method thereof, belonging to the technical field of building materials. Background technique [0002] Hollow brick is the main wall material commonly used in the construction industry. Due to its advantages of light weight and low consumption of raw materials, it has become the first product recommended by the national construction department. However, the thermal insulation and compressive strength of the hollow bricks on the market still cannot meet the national thermal insulation or quality control requirements. Contents of the invention [0003] The object of the present invention is to provide a kind of ore tailings ceramsite hollow brick and its preparation method. The ceramsite production hollow bricks made from ore tailings as the main raw material not only reduces the occupation of a large amount of cultivated land due to accumulation of iron ore tailings, but a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B30/02
Inventor 艾明生
Owner HEXIAN MINGSHENG ENVIRONMENTAL PROTECTION MATERIAL
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