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Preparation process for aerated concrete block with raw materials containing modified nano mineral powder

A technology for the preparation of aerated concrete, which is applied to ceramic products, applications, household appliances, etc., can solve the problems of low strength of aerated concrete blocks, achieve good heat insulation and sound insulation performance, improve frost resistance, reduce The effect of bulk density

Active Publication Date: 2013-01-16
安康鑫安环保建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength of air-entrained concrete blocks made of conventional air-entrained concrete is relatively low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation process of an aerated concrete block whose raw material contains modified nanometer mineral powder, comprising the following steps:

[0022] (1) Mix 10kg of calcium carbonate, 5kg of iron ore tailings, 2kg of potassium feldspar, 3kg of shale, and 4kg of alum ore tailings, burn them at 700°C for 4 hours, grind them into nano-powder, and mix them with Stir 1% epoxy butyl oleate and 2% epoxy octyl stearate by weight of the powder evenly, dry, and pulverize into powder to obtain modified nano mineral powder;

[0023] (2) Weigh the volcanic rock powder and gypsum according to the weight ratio, add an appropriate amount of water, stir and mix at 1000rpm for 3 minutes, grind to get the volcanic rock powder and gypsum mixed slurry, and then add the aerated concrete block according to the weight ratio to prepare the required The remaining raw materials were stirred and mixed for 5 minutes at 2000 rpm to obtain a mixed slurry;

[0024] The weight ratio of each raw ...

Embodiment 2

[0031] A preparation process of an aerated concrete block whose raw material contains modified nanometer mineral powder, comprising the following steps:

[0032] (1) Mix 12kg of calcium carbonate, 4kg of iron ore tailings, 1kg of potassium feldspar, 3kg of shale, and 6kg of alum ore tailings, burn them at 650°C for 5 hours, grind them into nano-powders, and mix them with Stir 2% epoxy butyl oleate and 2% epoxy octyl stearate by weight of the powder evenly, dry, and pulverize into powder to obtain modified nano mineral powder;

[0033] (2) Weigh the volcanic rock powder and gypsum according to the weight ratio, add an appropriate amount of water, stir and mix at 1000rpm for 3 minutes, grind to get the volcanic rock powder and gypsum mixed slurry, and then add the aerated concrete block according to the weight ratio to prepare the required The remaining raw materials were stirred and mixed for 5 minutes at 2500 rpm to obtain a mixed slurry;

[0034] The weight ratio (kg) of eac...

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Abstract

The invention discloses a preparation process for aerated concrete block with raw materials containing modified nano mineral powder. The preparation process comprises the following steps: weighing volcanic rock powder and gypsum according to weight ratio; stirring and mixing for 2 to 3 minutes at the speed of 700 to 1000 rpm after adding appropriate water, and then grinding to obtain mixed slurry of volcanic rock powder and gypsum; adding other raw materials such as modified nano mineral powder which is required for aerated concrete block preparation according to the weight ratio again; stirring and mixing the materials for 3 to 5 minutes at the speed of 2000 to 2800 rpm; pouring the obtained mixed slurry into the mold for forming; then procuring for 1 to 3 hours at the temperature of 40 to 50 DEG C; releasing the mold and lifting the produced material to a cutting department for cutting to obtain block blanks; putting the blocks into a reaction kettle to conserve with steam; and after the conservation is finished, putting the blocks into a warehouse. According to the invention, the preparation process for aerated concrete block with raw materials containing modified nano mineral powder optimizes the formula and materials, so that the strength and the frost resistance of the blocks are improved significantly.

Description

technical field [0001] The invention relates to the field of preparation technology of concrete blocks, in particular to a preparation technology of aerated concrete blocks whose raw materials contain modified nanometer mineral powder. Background technique [0002] Air-entrained concrete is a new type of wall building material. It is unique in that it is a very lightweight new type of building wall material for thermal insulation. The air-entrained concrete technology started a hundred years ago, and my country's technology started relatively late, 40 years behind foreign countries. However, the development of my country's air-entrained concrete industry is indeed very rapid. Now the technical level of domestic air-entrained concrete technology has reached the international advanced level. [0003] The biggest advantage of aerated concrete is that it saves land resources and does not need to waste a lot of cultivated land, and its raw materials come from a wide range of sou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B22/00C04B38/02
Inventor 晋元龙陈德全
Owner 安康鑫安环保建材有限公司
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