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Brown environment-friendly pavement brick

A kind of pavement brick, environmental protection technology, applied in the field of building materials, can solve the problem of single structure, etc., achieve the effect of reducing weight, improving life interest, and improving overall cost performance

Inactive Publication Date: 2018-02-23
山西聚义宝鑫新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the product structure of general sintered pavement bricks is single, and the market has diversified demand trends

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Select 75 tons of shale, 15 tons of coal gangue, and 5 tons of bauxite, and crush them through a 120-mesh sieve;

[0018] (2) Add 100 kg of sodium chromate, 500 kg of manganese oxide, and 2.0 tons of sodium carbonate to the under-sieve material obtained in step (1), stir evenly, then add 10 tons of water and continue stirring for 30 minutes, stale for more than 24 hours, and set aside;

[0019] (3) Put the stale material into the mixer, add a small amount of water and stir evenly, send it into the press to extrude the billets and cut them into bricks of the designed size, such as 30×30×10 (㎝), 30×20×15 (㎝) etc., the adobe is placed in a cool place for natural dehydration for 6 hours;

[0020] (4) The naturally dehydrated formed bricks are fired in a tunnel kiln. The firing process includes drying at 80-200°C for 3 hours; within 48 hours, the kiln temperature is raised from 200°C to 800°C and kept for 30 minutes; within 60 minutes, the kiln temperature Raise from 80...

Embodiment 2

[0022] The ratio of raw materials is as follows: 92 tons of shale, 20 tons of coal gangue, 8 tons of bauxite, 2 tons of potassium chromate, 2.5 tons of manganese oxide, and 100 kg of sodium carbonate. After stirring, let it stand and stale for 25 hours. All the other technological processes are identical with embodiment 1.

Embodiment 3

[0024] The ratio of raw materials is as follows: 85 tons of shale, 8 tons of coal gangue, 7 tons of bauxite, 300 kg of magnesium chromate, 1.5 tons of manganese oxide, and 800 kg of sodium carbonate. All the other technological processes are identical with embodiment 1.

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Abstract

The invention provides a brown environment-friendly pavement brick belonging to the technical field of building materials. The brick comprises the following components in parts by weight: 75-92 partsof shale, 8-20 parts of coal gangue, 5-8 parts of bauxite, 0.1-2 parts of chromate, 0.5-2.5 parts of manganese oxide and 0.1-2 parts of sodium carbonate. According to the pavement brick, the main performance indexes such as strength, wear resistance and moisture percentage of the brick are improved by sufficiently utilizing low-cost easily available clay mineral, namely shale and waste, namely coal gangue, and the pavement brick is mainly used for the pavements of various buildings such as high-grade residential districts, companies, squares and parks.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a brown environment-friendly pavement brick used as a landscape pavement. Background technique [0002] At present, the materials of sintered pavement bricks are mainly clay and related auxiliary materials. With the national policy vigorously promoting the promotion of green and environmentally friendly building materials, various types of green and environmentally friendly sintered bricks have begun to enter the market. The main materials are inorganic mineral shale and waste coal gangue. Sintered landscape bricks are gradually accepted by the market. In the industry, the proportion of shale and coal gangue mainly determines the sintering temperature range, strength, weathering resistance and other properties, and a small amount of auxiliary materials adjusts the color of various types of sintered bricks. The addition of coal gangue in sintered bricks can also save he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/04
CPCC04B33/04C04B33/132C04B2235/3201C04B2235/3217C04B2235/3243C04B2235/3262C04B2235/6567C04B2235/661C04B2235/96Y02P40/60
Inventor 倪庆国张立乾
Owner 山西聚义宝鑫新材料有限公司
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