Aerated concrete block and production method thereof

A technology of aerated concrete and blocks, which is applied in clay preparation devices, chemical instruments and methods, manufacturing tools, etc. It can solve the problems of complex configuration process and high production cost, reduce thermal conductivity, reduce mold consumption, and shorten turnaround cycle Effect

Inactive Publication Date: 2020-03-27
温州明远新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned air-entrained concrete fireproof insulation board is prepared by both internal gas generation and external gas addition. The raw materials are various and the configuration process is relatively complicated. The required production cost is high and needs to be improved.

Method used

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  • Aerated concrete block and production method thereof
  • Aerated concrete block and production method thereof
  • Aerated concrete block and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] An air-entrained concrete block, the raw material components are shown in Table 1 in parts by weight.

[0043] The slurry is a mixture of sand and water, the proportion of sand in the slurry is 55%, sodium methyl siliconate is used as a hydrophobic agent, tea saponin is used as a surfactant, and cocamidopropyl betaine is used as an additive. Among them, the calcium oxide content in the lime is greater than 75%.

[0044] Such as figure 1 Shown, the preparation method of this air-entrained concrete block comprises the following steps:

[0045] S1, preliminary mixing: mix sand and water to obtain a slurry, then add cement, lime, gypsum, fly ash, tea saponin and water repellent and mix evenly, and stir for 3 minutes;

[0046] S2, complete mixing: add aluminum powder, ferrosilicon powder and additives, mix evenly, and stir for 2 minutes;

[0047] S3, foam molding: pour into the mold for foam molding and cutting;

[0048] S4, autoclaving curing: autoclaving at 1 MPa for 5...

Embodiment 2

[0050] An air-entrained concrete block, the raw material components are shown in Table 1 in parts by weight.

[0051] The slurry is a mixture of sand and water, the proportion of sand in the slurry is 60%, sodium methyl siliconate is used as a hydrophobic agent, tea saponin is used as a surfactant, and cocamidopropyl betaine is used as an additive. Among them, the calcium oxide content in the lime is greater than 75%.

[0052] The preparation method of the air-entrained concrete block comprises the following steps:

[0053] S1, preliminary mixing: mix sand and water to obtain a slurry, then add cement, lime, gypsum, fly ash, tea saponin and water repellent and mix evenly, and stir for 4 minutes;

[0054] S2, complete mixing: add aluminum powder, ferrosilicon powder and additives, mix well, and stir for 1 min;

[0055] S3, foam molding: pour into the mold for foam molding and cutting;

[0056] S4, autoclaved curing: 1.1 MPa autoclaved curing for 6 hours, the temperature is 1...

Embodiment 3

[0058] An air-entrained concrete block, the raw material components are shown in Table 1 in parts by weight.

[0059] The slurry is a mixture of sand and water, the proportion of sand in the slurry is 60%, sodium methyl siliconate is used as a hydrophobic agent, tea saponin is used as a surfactant, and cocamidopropyl betaine is used as an additive. Among them, the calcium oxide content in the lime is greater than 75%.

[0060] The preparation method of the air-entrained concrete block comprises the following steps:

[0061] S1, preliminary mixing: mix sand and water to obtain a slurry, then add cement, lime, gypsum, fly ash, tea saponin and water repellent and mix evenly, and stir for 4 minutes;

[0062] S2, complete mixing: add aluminum powder, ferrosilicon powder and additives, mix well, and stir for 1 min;

[0063] S3, foam molding: pour into the mold for foam molding and cutting;

[0064] S4, autoclaved curing: 1.2MPa autoclaved curing 6h, the temperature is 200 ℃.

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Abstract

The invention discloses an aerated concrete block and a production method thereof, and relates to the technical field of building materials. The aerated concrete block is produced from, by weight, 2070-2100 parts of a slurry, 230-260 parts of cement, 200-220 parts of lime, 1.0-1.5 parts of aluminum powder, 4-6 parts of ferrosilicon powder, 0.5-1.0 part of a surfactant and 0.2-0.4 part of a water repellent; the slurry is a mixture of sands and water, and the proportion of the sands in the slurry is 55-60%; and the surfactant is tea saponin. The aerated concrete block adopting the above settingand proportioning of the system has a good strength, can effectively reduce the production cost, can be used as a building exterior wall, can meet the requirement of saving 65% of energy of a buildingwithout depending on other thermal insulation materials, and can reduce the construction procedures and reduce the load of the building due to the low volume weight.

Description

technical field [0001] The invention relates to the technical field of building materials, more specifically, it relates to an aerated concrete block and a preparation method thereof. Background technique [0002] Air-entrained concrete block, also known as concrete aerated block, is a new type of building material that is lightweight, porous, heat-insulating, fire-resistant, and has a certain degree of earthquake resistance. According to the use, it can be divided into five types: non-load-bearing blocks, load-bearing blocks, insulation blocks, wall panels and roof panels. [0003] The Chinese patent with the authorized announcement number CN102701659B discloses a B02 grade light sand aerated concrete fireproof insulation board. The raw material components and their weight percentages are: quartz sand 45-55%, lime 12-16%, cement 24 -37%, gypsum 5%, aluminum powder 0.25-0.35%, composite admixture 0.2-0.6%; the raw material components and weight percentages of the composite ...

Claims

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Application Information

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IPC IPC(8): C04B28/12B28B1/50B28C5/38C04B111/40
CPCC04B28/12B28C5/388B28B1/50C04B2111/40C04B2201/50C04B14/06C04B22/04C04B38/02C04B7/00C04B22/143C04B2103/65C04B24/10C04B24/124
Inventor 邵卫东张光森陈祥节邵志富
Owner 温州明远新型建材有限公司
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