Cold region fly ash brick

Abstract

The invention relates to a wall body material, in particular to a pulverized fuel ash brick used in cold areas. The brick uses sands, carbide slag, pulverized fuel ashes and cement as raw materials which have weight percentage as follows: 25 to 40 percent of sand, 10 to 20 percent of carbide slag, 35 to 50 percent of pulverized fuel ashes and 8 to 12 percent of cement. The invention utilizes the large amount of pulverized fuel ashes exhausted from power plants as the major raw material used for producing the product, thus protecting environment, saving land which is used for a plant storing the pulverized fuel ashes in a power plant, meeting the industrial policy of energy saving and exhaust reducing of China, providing a novel wall body material for building market, canceling sintering of clay red bricks and making contribution to saving land resources. The pulverized fuel ash brick used in the cold areas of the invention is different from sintering-free bricks and autoclaved bricks, has the advantages of large forming pressure and good anti-freezing ability, is applicable to be used in the cold areas, and is characterized by good anti-freezing capacity (25 times higher than the national standard) and good insulation capacity and thermal conductivity thereof is less than the traditional clay red bricks and other solid bricks.

Description

technical field [0001] The invention relates to a wall material, in particular to a fly ash brick. Background technique [0002] Existing fly ash bricks have the problem that the product's flexural index is low, which is at the lower limit of the national standard. Contents of the invention [0003] In order to solve the anti-bending problem of existing fly ash bricks, the present invention provides a kind of fly ash brick in cold regions, which uses sand, carbide slag, fly ash and cement as main raw materials, and the weight percentage of each raw material is: sand 25~ 40%, carbide slag 10-20%, fly ash 35-50%, cement 8-12%. [0004] The invention uses a large amount of fly ash discharged from the power plant as the main raw material for the production of the product, protects the environment, and saves the land occupied by the ash storage plant of the power plant; conforms to the national industrial policy of energy saving and emission reduction; provides a new type of w...

AI Technical Summary

Problems solved by technology

[0002] Existing fly ash bricks have the problem that the product's flexural index is low, which is at the lower limit of the national standard

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