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Yttrium-element autoclaved aerated concrete block and preparation method thereof

A technology of concrete block and aerated concrete, applied in the field of building materials, can solve the problems of increasing foundation treatment and construction costs, wasting raw materials, long production cycle, etc. good performance

Active Publication Date: 2012-06-20
CHIFENG XINHAI ENERGY SAVING BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] According to the existing definition standards for new wall materials, buildings such as concrete shear wall structures, frame structures, and frame-shear structures are all listed as new wall material buildings. The existing concrete is composed of cement, sand, stone and other main raw materials. , cement as a cementitious material consumes a large amount of non-renewable resources such as limestone and clay and a large amount of high-quality energy such as coal in the production process; in the production of concrete, a large amount of limestone is added, and the limestone resources consumed by the two The economic value is far greater than the economic value of the clay resources used to burn bricks; moreover, the walls and frames are basically solid, and the concrete has a large specificity and a large amount, which not only wastes raw materials, but also increases the load of the building and increases the Basic treatment and construction costs, and the production cycle is long, and the sound insulation and heat resistance are not good; although the existing autoclaved aerated concrete overcomes the above shortcomings, its viscosity is high, and the materials are not easy to mix evenly

Method used

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  • Yttrium-element autoclaved aerated concrete block and preparation method thereof
  • Yttrium-element autoclaved aerated concrete block and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Example 1 The yttrium element sand aerated concrete block is composed of the following raw materials in weight ratio:

[0057] 55 parts of sand, 0.03 parts of yttrium oxide, 28 parts of lime, 11 parts of cement, 2 parts of gypsum, 0.8 parts of aluminum powder, and 2 parts of calcium-based bentonite.

[0058] Its preparation method is as figure 1 Shown:

[0059] (1) Raw material processing;

[0060] ① Process the sand until it passes through a 0.080mm square hole sieve, with a sieve allowance of ≤15%, and stack it for use;

[0061] ② Lime is processed until it passes through a 0.080mm square hole sieve, the sieve allowance is ≤15%, the digestion speed (min) is 5-15, the digestion temperature (°C) is 60-90, and the undigested residue (%) is ≤10;

[0062] ③Calcium-based bentonite is processed until it passes through a 300-mesh sieve, and the sieve allowance is ≤1%;

[0063] ④ Yttrium oxide is a commercially available product and can be used directly;

[0064] ⑤ Cement...

Embodiment 2

[0100] Example 2 The yttrium element sand aerated concrete block is composed of the following raw materials in weight ratio:

[0101] 70 parts of sand, 0.06 parts of yttrium oxide, 23 parts of lime, 6 parts of cement, 6 parts of gypsum, 1.2 parts of aluminum powder, and 7 parts of calcium-based bentonite.

[0102] Its preparation method is with embodiment 1.

[0103] After testing, the average compressive strength of this product is 5.0MPa, which is 1.4 times of the GB11968-2006 standard of "Steam Pressurized Concrete Block", and the minimum value of a single group is 4.6MPa, which is 1.6 times of the above standard.

Embodiment 3

[0104] Example 3 The yttrium element sand aerated concrete block is composed of the following raw materials, in weight ratio:

[0105] 62 parts of sand, 0.03 parts of yttrium oxide, 25 parts of lime, 9 parts of cement, 4 parts of gypsum, 0.9 parts of aluminum powder, and 2 parts of calcium-based bentonite.

[0106] Its preparation method is with embodiment 1.

[0107] After testing, the average compressive strength of this product is 5.6MPa, which is 1.6 times of the GB11968-2006 standard of "Steam Pressurized Concrete Blocks", and the minimum value of a single group is 5.2MPa, which is 1.5 times of the above standard.

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Abstract

The invention discloses an yttrium-element autoclaved aerated concrete block and a preparation method thereof. The yttrium-element autoclaved aerated concrete block is divided into an yttrium-element sand aerated concrete block and an yttrium-element ash aerated concrete block and belongs to the field of building materials. The yttrium-element sand aerated concrete block is composed of the following raw materials by weight parts: 55-70 parts of sand, 0.03-0.06 parts of yttrium oxide, 23-28 parts of lime, 6-11 parts of cement, 2-6 parts of gypsum, 0.8-1.2 parts of aluminum powder and 2-7 partsof calcium-based bentonite. The yttrium-element ash aerated concrete block is composed of the following raw materials by weight parts: 60-70 parts of coal ash, 0.03-0.06 parts of yttrium oxide, 25-30parts of lime, 6-8 parts of cement, 2-6 parts of gypsum, 0.8-1.2 parts of aluminum powder and 2-7 parts of calcium-based bentonite. Compared with the present autoclaved aerated concrete block, the yttrium-element autoclaved aerated concrete block has the advantages that the filling property is greatly promoted, namely, the compression strength is promoted.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a yttrium element autoclaved aerated concrete block and a preparation method thereof. Background technique [0002] According to the existing definition standards for new wall materials, buildings such as concrete shear wall structures, frame structures, and frame-shear structures are all listed as new wall material buildings. The existing concrete is composed of main raw materials such as cement, sand, and stone. , cement as a cementitious material consumes a large amount of non-renewable resources such as limestone and clay and a large amount of high-quality energy such as coal in the production process; in the production of concrete, a large amount of limestone is added, and the limestone resources consumed by the two The economic value is far greater than the economic value of the clay resources used to burn bricks; moreover, the walls and frames are basically s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/14B28B3/02
Inventor 吕玉友
Owner CHIFENG XINHAI ENERGY SAVING BUILDING MATERIAL
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