Formula of baking-free brick curing agent and baking-free brick preparation method

Abstract

The invention relates to a baking-free brick curing agent and a baking-free brick preparation method. A formula of the baking-free brick curing agent comprises the following chemical components in percentage by mass: 5-12% of polyvinyl alcohol, 55-72% of calcium oxide CaO, 12-18% of silicon dioxide SiO2, 4-8% of sulfur trioxide SO3, 5-8% of magnesium oxide MgO, 3-5% of ferrous trioxide Fe2O3 and 2-4% of mineral pigments. The prepared baking-free brick curing agent is simple to prepare. According to prepared baking-free bricks, by adding 1% of the curing agent provided by the invention, the cement addition proportion can be reduced by 15%, the produced finished bricks have good water seepage prevention performance, the erosion effect of harmful salts in brick making raw materials can also be blocked, and each performance reaches or exceeds the existing national standard; the baking-free brick curing agent disclosed by the invention can be used for preparing brick materials by utilizingraw materials such as industrial wastes and construction wastes, so that waste resources are recycled; according to the baking-free brick curing agent disclosed by the invention, the baking-free bricks with different colors can be prepared by adjusting the types and proportions of the added mineral pigments, and individual requirements are met.

Description

Technical field: [0001] The invention belongs to the technical field of building materials, and in particular relates to a curing agent for non-burning bricks and a method for preparing non-burning bricks added with the curing agent. Background technique: [0002] Unburned brick is a new type of building material, which can use waste soil, stone powder (crumbs), sediment, shale, silt, slag, sand-coated soil, red gangue, fly ash, industrial waste, construction waste and other materials as the main materials. The raw material is produced without high-temperature calcination. At this stage, the curing agents used for pressing bricks in the market include powder and liquid products. Without changing the original formula of pressing bricks, adding curing agents can only increase the strength of 3-5mPa. It cannot completely solve the problems of insufficient strength of pressed bricks and damage in links such as product transportation and use. Unburned bricks in the traditional ...

AI Technical Summary

Problems solved by technology

Traditional cement pressed bricks have strong water permeability. In the cold season at high latitudes, the free water in the bricks is likely to cause internal structure damage under the influence of seasonal freeze-thaw cycles, causing cracks and strength decline.

And if the industrial waste in the raw materials of traditional cement pressed bricks contains harmful salts such as sulfate, it will also chemically react with the cement, destroying the structure of the cement and causing a decrease in strength.

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