High-strength non-evaporating brick and preparation method thereof

Abstract

The invention discloses a high-strength non-evaporating brick and a preparation method thereof, belonging to the technical field of building materials. The non-evaporating brick comprises the following components in percentage by weight: 30-45 unground grain slag, 30-45 heavy slag, 10-20 fly ash, 2-5 industrial by-product gypsum, 1-5 activity excitant and 5-14 water. The preparation method of thehigh-strength non-evaporating brick is simple, has low production cost and produces non-evaporating bricks with strong frost-resistant performance, low drying shrinkage value and high strength over MU15.

Description

High-strength steam-free brick and preparation method thereof Technical field The invention belongs to the technical field of building materials. Background technique The new wall materials currently used in China are mainly concrete blocks, autoclaved fly ash bricks, autoclaved lime sand bricks, and aerated fly ash blocks. Non-burning bricks and non-steaming bricks have developed rapidly in recent years. Although their strength can reach MU10 or more, they have many problems with durability such as carbonization resistance, shrinkage resistance, and frost resistance. Questions from people in the Chinese brick and tile industry. In the current research reports and patented technologies of non-fired and non-steamed bricks, alkaline substances such as water glass, sodium hydroxide, and sodium sulfate are mainly added as activators to stimulate the hydration activity of slag and fly ash. For example, in the patent "Pure industrial waste residue-free and steam-free construction ...

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Problems solved by technology

The patent has a large amount of cementing material, and there are more than 10 kinds of raw materials in the whole formula. The actual production process is complicated, the workload of batching and mixing is large, and the hot water curing time is long, the production cost is high, and the market competitiveness is lacking.

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