Burning-and-steam-curing-free alkaline slag brick and preparation method thereof

Abstract

The invention discloses a burning-and-steam-curing-free alkaline slag brick. The burning-and-steam-curing-free alkaline slag brick is prepared from the following raw materials in part by weight or volume: 20 to 200 parts of alkaline slag or vulcanized alkaline slag, 0 to 200 parts of magnesium slag, 0 to 200 parts of fly ash, 0 to 200 parts of coal cinder, 0 to 200 parts of tailing sand, 0 to 200 parts of limestone powder, 0 to 200 parts of coarse aggregate, 0 to 200 parts of oil shale waste, 0 to 200 parts of activated coagulation aiding material, 0 to 200 parts of waste sand, 2 to 20 parts of cement, and a proper amount of water. The raw materials are stirred and then are fed into a block making machine for vibration compression molding, and a finished product is obtained through natural curing or solar warming-up curing for 7 to 28 days. The burning-and-steam-curing-free solid bricks, perforated bricks, hollow blocks, floor tiles, road edge bricks, grass planting bricks, slope protection bricks and fence railings of different specifications can be produced by replacing different mold machines. Industrial waste slag is utilized to turn harm into good, material selection is flexible, the process is simple and convenient, the cost is low, the strength of the product is high, and the burning-and-steam-curing-free alkaline slag brick has excellent development and application prospects.

Description

technical field [0001] The invention relates to an alkali slag brick, in particular to a non-burning and non-steaming alkali slag brick and a preparation method thereof, belonging to the field of building materials. technical background [0002] In the production process of soda ash industry and soda sulfide industry, a large amount of waste alkali slag will be produced. For example, about 9-12 tons of soda slag will be discharged per ton of soda ash produced. Discharge after dam construction requires huge engineering investment. For many years, people have been looking for ways to comprehensively utilize alkali slag. At present, alkali slag has been mixed with fired cement and salt mud to produce magnesium carbonate. It is also occasionally seen that solid CaCl 2 There are records of carbonized bricks produced from wollastonite and lime kiln waste slag, but there is no report on the production of soda slag bricks by the non-burning and autoclaving process. Contents of th...

AI Technical Summary

Problems solved by technology

[0002] In the production process of soda ash industry and soda sulfide industry, a large amount of waste alkali slag will be produced. For example, about 9-12 tons of soda slag will be discharged per ton of soda ash produced. Discharge after dam construction requires huge engineering investment

For many years, people have been looking for ways to comprehensively utilize alkali slag. At present, alkali slag has been mixed with fired cement and salt mud to produce magnesium carbonate. It is also occasionally seen that solid CaCl 2 There are records of carbonized bricks produced from wollastonite and lime kiln waste residue, but there is no report on the production of soda slag bricks by the non-burning and autoclaving process.