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Sintered heat insulating hollow building block

A technology of hollow blocks and binders, which is applied in the field of building materials, can solve the problems of high thermal conductivity of sintered hollow bricks, low production scale, small size and other problems, and achieve good thermal insulation performance, porosity and microporosity of products The effect of height and large size

Inactive Publication Date: 2006-09-13
XIAN RES & DESIGN INST OF WALL & ROOF MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing sintered hollow bricks have high thermal conductivity, small size, low production scale, and low amount of waste slag, which cannot meet the needs of energy-saving and land-saving residential and public buildings.
Non-sintered hollow blocks such as aerated concrete, due to dry carbonization shrinkage and other problems, the cracking and leakage problems of buildings have not been well resolved
[0004] The total output of wall materials in my country is large, and the number of enterprises is large, but the per capita labor productivity is low, the variety is small, the specifications are single, and the quality level is average

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The composition and weight percentages of raw materials for making the sintered heat-insulating hollow block of this embodiment are: 60% of fly ash or coal gangue, 30% of bentonite, and 10% of sawdust.

[0020] The preparation process of the present embodiment comprises the following steps:

[0021] (1) Raw material storage and processing

[0022] In order to fully mix and homogenize the above-mentioned raw materials, the above-mentioned raw materials are crushed in three stages by using a fine jaw crusher, a hammer crusher, and a fine-crushing pair of rollers. It should be less than 5 mm, and the particle size of the finely crushed double-roller is less than 2 mm. After the mixture is crushed, it enters the twin-shaft mixer for stirring;

[0023] (2) aging

[0024] The mixture in step (1) contains a certain amount of water after being processed, and enters the aging warehouse for 36-72 hours of aging. On the one hand, the raw materials are fully homogenized to increa...

Embodiment 2

[0030] The composition and weight percentage of the raw materials for making the sintered heat insulating hollow block of this embodiment are: 70% of steel slag or sludge, 25% of bentonite, and 5% of diatomite.

[0031] The preparation process of this embodiment is the same as that of Example 1.

Embodiment 3

[0033] The composition and weight percentage of the raw materials for making the sintered heat-insulating hollow block of this embodiment are: 50% of metallurgical tailings or red mud, 45% of clay, and 5% of rice husk.

[0034] The preparation process of this embodiment is the same as that of Example 1.

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Abstract

A sintered insulating hollow building block is prepared from coal gangue, powdered coal ash, steel slags, metallurgical tailings, red mud, and rejected solid (building garbage, life garbage and city mud) or shale through proportionally adding adhesive and millipore forming agent and sintering.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a sintered heat-insulating hollow block. Background technique [0002] At present, the annual completed area of ​​my country's construction industry reaches more than 2 billion square meters 2 , The demand for wall materials is huge, reaching 800 billion pieces (equivalent to ordinary bricks), of which the leading product - fired bricks, still accounts for about 80% of the total consumption, about 650 billion pieces, and the annual consumption of clay resources is 1.43 billion cubic meters. On the other hand, the annual discharge of fly ash and coal gangue in our country amounts to hundreds of millions of tons, and the annual discharge of other industrial waste residues is also above 100 million tons. Over the years, more than 10 billion tons of industrial wastes have been accumulated, occupying more than 1.2 million mu of land. At present, the country actively advoc...

Claims

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Application Information

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IPC IPC(8): C04B18/04C04B14/12C04B14/04C04B38/06
CPCY02W30/91
Inventor 王浩肖慧张家维权宗刚李寿德
Owner XIAN RES & DESIGN INST OF WALL & ROOF MATERIALS CO LTD
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