Foaming modified powder in aerated brick and manufacturing process thereof

A production process and modified powder technology, which is applied in the field of building bricks, can solve the problems of easy cracking of aerated bricks, uneven distribution and size of pores in aerated bricks, achieve uniform gas generation positions and generated pore sizes, and save material costs and labor costs, the effect of delaying delamination

Inactive Publication Date: 2017-11-07
MAANSHAN ZHICHENG SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems in the prior art that the aerated bricks are prone to cracking when the local force is uneven, and the distribution and size of the pores inside the aerated bricks are uneven, the present invention provides a modified foaming powder in aerated bricks and its manufacturing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The foamed modified powder in the aerated brick of this embodiment includes cement, starch and aluminum powder, and the weight ratio is 7:4:1.

[0057] The steps of the manufacturing process of the foamed modified powder in the aerated brick of the present embodiment are:

[0058] A. Ingredients: take 70kg cement, 40kg starch and 10kg aluminum powder;

[0059] B. Mixing: After mixing the prepared powder in step A evenly, add 54kg of water and stir evenly to form an initial coagulation body and let it stand for 20 minutes;

[0060] C. Ball milling: transfer the initial coagulation body into a wet ball mill and ball mill it into a slurry of foamed modified powder.

[0061] The foamed modified powder in the aerated brick of this example can be absorbed by the starch during the initial setting of the cement and initially gelatinized, which strengthens the adsorption of aluminum powder. The aluminum powder (less than 0.1%) is magnified 12 times, which can make the subseque...

Embodiment 2

[0063] The foamed modified powder in the aerated brick of this embodiment includes cement, starch and aluminum powder, and the weight ratio is 7:6:1;

[0064] The steps of the manufacturing process of the foamed modified powder in the aerated brick of the present embodiment are:

[0065] A. Ingredients: take 70kg cement, 60kg starch and 10kg aluminum powder;

[0066] B. Mixing: After mixing the prepared powder in step A evenly, add 70kg of water and stir evenly to form an initial coagulation body;

[0067] C. Mold entry: spread the initial solidification body into the mold;

[0068] D. Drying: transfer to a dryer to obtain blocky materials; the drying temperature is 50-55°C to avoid excessive gelatinization of starch; drying to a moisture content of less than 10%, the drying time is about about 5 hours;

[0069] E. Crushing: put the block material into the crusher for crushing;

[0070] F. Pulverization: After crushing, use a dry ball mill to pulverize to obtain foamed mod...

Embodiment 3

[0073] The foamed modified powder in the aerated brick of this embodiment includes cement, starch and aluminum powder, and the weight ratio is 7:5:1;

[0074] The steps of the manufacturing process of the foamed modified powder in the aerated brick of the present embodiment are:

[0075] A. Ingredients: take 70kg cement, 50kg starch and 10kg aluminum powder;

[0076] B. Mixing: After mixing the prepared powder in step A evenly, add 71.5kg of water and stir evenly to form an initial solid;

[0077] C. Mold entry: spread the initial solidification body into the mold; the thickness of the paving plate is 3cm; the weight of the paving plate is 15kg;

[0078] D. Quick-freezing: Transfer to the quick-freezing store for quick freezing; the quick-freezing temperature is -15°C for 1 hour, and the aluminum powder particles are quick-frozen and positioned first to prevent displacement.

[0079] E. Freeze-drying: transfer to 50m 2 The bulk material is obtained after freeze-drying in th...

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Abstract

The invention discloses foaming modified powder in an aerated brick and a manufacturing process thereof, and belongs to the technical field of bricks for building. The foaming modified powder in the aerated brick is prepared from cement, starch and aluminum powder according to a weight ratio of (7 to 9) to (4 to 6) to (1 to 2); after the cement, the starch and the aluminum powder are mixed, the starch can perform adsorption positioning on the aluminum powder; the cement neutralizes the density of the starch and the aluminum powder; the lamination of the cement, the starch and the aluminum powder is delayed in the subsequent stirring and casting process; in addition, lamination cannot occur in the pre-curing still standing process, so that the goal of aeration position and generated pore size uniformity is achieved; in addition, after the subsequent mold entering pre-curing work procedure, the unexpected technical effect of easy demolding is reached; the coating of demolding agents onto a cast box mold is not needed; the material cost and the labor cost are reduced; the problem of paint brushing affected by the demolding agents on the surface of the aerated brick is solved.

Description

technical field [0001] The invention relates to the technical field of building bricks, in particular to a modified foaming powder in aerated bricks and a manufacturing process thereof. Background technique [0002] Aerated bricks are also called aerated concrete blocks, which are widely used. They are mainly used in mechanical workshops and civil buildings for wall materials, filling walls, floor and roof panels and other load-bearing wall materials, as well as non-load-bearing materials and surrounding filling walls. . At present, aerated bricks have become the leading product in the building materials industry. The country has gradually banned the use of clay solid bricks, and gradually replaced them with aerated concrete blocks and autoclaved bricks. [0003] Aerated bricks have the characteristics of light weight, good thermal insulation performance, strong shock resistance, good processing performance, certain high temperature resistance, good sound insulation perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B38/02C04B111/34
CPCC04B40/0039C04B38/02C04B2111/343C04B7/00C04B24/38C04B22/04
Inventor 汪淳
Owner MAANSHAN ZHICHENG SCI & TECH
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