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Autoclaved aerated concrete block

A technology of concrete block and autoclaved aeration, which is applied to building components, buildings, building structures, etc., can solve the problems of poor freeze-thaw resistance, high cost, unstable natural maintenance quality, etc., and can improve the thermal resistance value. , to ensure the effectiveness, the effect of reducing the shrinkage value

Active Publication Date: 2016-08-17
山东省建筑科学研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the unstable quality of natural maintenance and poor freeze-thaw resistance of this type of block, the thermal resistance of a 240 mm thick wall is generally less than 1.5 (m2 K) / W, and the cost is high, and the cost is not less than 320 yuan per cubic meter

Method used

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  • Autoclaved aerated concrete block
  • Autoclaved aerated concrete block
  • Autoclaved aerated concrete block

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A nano-building material greenness enhancer, the main components are 1 part of bentonite, 3 parts of bauxite, 1 part of diatomite, mixed with 0.3 parts of nano-coupling agent and then ground (the specific surface area is not less than 600m 2 / kg), the nano-coupling agent is compounded by nano-sodium silicate and aluminate at a ratio of 1:1 at room temperature, and is the modified activator of this enhancer.

Embodiment 2

[0038] like figure 1 As shown, an autoclaved aerated concrete block has four rows of flat strip vertical blind holes downwards on the upper surface of the block, two middle blind holes are arranged side by side in the first row and the third row, and the second row and the fourth row are arranged side by side from left to right with short blind holes, middle blind holes and short blind holes. The hole width is 16-18 mm, and the distance between the bottom of the blind hole and the bottom plane of the block body is 10±0.5 mm; 2≤The number of blind holes in each row is ≤4, and the width of the thermal bridge between blind holes and blind holes is greater than 30 mm, the distance between two rows of blind holes is ≥30 mm and ≤60 mm; the side ribs at both ends of the block body along the length direction are not less than 30 mm, and the side ribs on both sides along the width direction are not less than 40 mm; autoclaved aerated concrete blocks The porosity of the core hole shall...

Embodiment 3

[0053] The similarities between this embodiment and Embodiment 2 will not be repeated, and the difference is that the distribution diagram of block blind holes in Embodiment 3 is shown in Figure 16 (Four rows of hole layout scheme 2), the indicators are as follows:

[0054] One of the dimensions of the block body is 597×240×237 mm, which is processed and formed in a fine machining center at one time by using the processing method of this scheme. There are 4 rows of blind holes on it. The blind hole type described in this plan is a rectangular hole with chamfers, and there are three types, which are divided into three types: long blind hole, medium blind hole and short blind hole. The hole lengths are 537 mm, 253 mm, 111 mm, hole width 16 mm; hole height 227 mm; hole-to-hole thermal bridge size width greater than 30 mm, distance between two rows of holes ≥ 30 mm and ≤ 60 mm; side ribs at both ends of the block body along the length direction are not less than 30 mm, and the ...

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Abstract

An autoclaved aerated concrete block, which is characterized in that 2 to 4 rows of flat strip-shaped vertical blind holes are opened downward along the upper surface of the block, the hole width is 16 mm to 18 mm, and the distance between the bottom ends of the blind holes is The distance between the bottom plane of the block body is 10±0.5 mm; 1≤the number of blind holes in each row is ≤4, the distance between blind holes and blind holes must be greater than 30 mm, and the distance between two rows of blind holes must be ≥30 mm And ≤60 mm; the side ribs at the two ends of the block body along the length direction shall not be less than 30 mm, and the side ribs on both sides along the width direction shall not be less than 40 mm; the core hole ratio of autoclaved aerated concrete blocks shall not exceed 24.0%.

Description

[0001] This application is a divisional application of the Chinese invention patent application with the application date of April 23, 2013, the application number 2013101406145, and the name of the nano building material greenness enhancer and autoclaved aerated concrete block. technical field [0002] The proposal relates to a concrete block, in particular to an autoclaved aerated concrete block and a manufacturing method thereof. Background technique [0003] At present, the types of domestic self-insulating blocks are divided into: 1. Concrete self-insulating blocks, light aggregate concrete self-insulating blocks. This type of block is filled with high-efficiency thermal insulation materials in the holes of concrete blocks, such as: XPS, EPS, PU, ​​PF, urea-formaldehyde and other combustible materials, which have poor fire resistance. There are also forms such as filling perlite, vitrified microbeads and other insulating materials or pouring foamed cement. This type of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04C1/00
Inventor 孙洪明陈文曹杨
Owner 山东省建筑科学研究院有限公司
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