A kind of antifreeze brick and preparation method thereof

Abstract

The invention discloses an anti-freezing brick and a preparation method thereof. The anti-freezing brick is prepared from the following raw materials in parts by weight: 25 to 35 parts of calcium chloride filtered mud, 15 to 25 parts of river sand, 25 to 35 parts of aggregated rock, 8 to 12 parts of cement and 8 to 12 parts of water. The anti-freezing brick disclosed by the invention has the characteristics of better compressive strength, abrasive resistance, freezing resistance, weather resistance, chemical corrosion resistance, difficulty in cracking, low water absorption and the like through combined action among calcium chloride, ferric hydroxide, sodium hydroxide and aluminum hydroxide. According to the anti-freezing brick disclosed by the invention, cyclic utilization of resources isrealized by mainly utilizing the filtered mud generated during a calcium chloride production process; the preparation method of the anti-freezing brick is simple, large-scale production can be carried out, sintering is not required, and the energy source is saved; through raw material mixing in specific proportion, the anti-freezing brick with better performance can be obtained on the premise that a smaller amount of cement is used.

Description

technical field [0001] The invention belongs to the technical field of concrete products, and in particular relates to an antifreeze brick and a preparation method thereof. Background technique [0002] Concrete usually uses cement as the cementitious material, sand and stone as the base material, mixed with water in a certain proportion, and the cement concrete obtained by mixing is also called ordinary concrete. It has the advantages of easy molding, low energy consumption, good durability and low price. As well as the advantages of combining with steel to make various load-bearing structures, it is the most widely used building material in contemporary times and plays a very important role in the development of human society. [0003] The demand for calcium chloride in my country is strong, and its production capacity is huge. During the production process, a large amount of filter mud will be produced. The filter mud contains a large amount of calcium chloride, iron hydr...

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Problems solved by technology

[0003] The demand for calcium chloride in my country is strong, and its production capacity is huge. During the production process, a large amount of filter mud will be produced. The filter mud contains a large amount of calcium chloride, iron hydroxide, magnesium hydroxide and aluminum hydroxide. If it is discharged directly, it will be harmful to nature. The environment causes environmental pollution and wastes resources

[0004] At present, there are many kinds of concrete bricks on the market, but there are common problems such as low strength, poor frost resistance, insufficient high temperature resistance and heat preservation ability, and easy cracking.