High-strength non-evaporating brick and preparation method thereof

A non-steamed brick and high-strength technology, which is applied in the direction of clay preparation equipment, chemical instruments and methods, and manufacturing tools, can solve the problems of heavy batching and mixing workload, long hot water curing time, and lack of market competitiveness. Achieve the effects of low production cost, short standing aging time, and reduced mining volume

Inactive Publication Date: 2010-02-24
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] High-strength non-steaming brick, calculated by weight percentage, its composition is: unground water slag 37%, heavy slag 40%, fly ash 15%, desulfurization gypsum 5%, active activator (mixture of cement and pulp waste liquid) 3% and water 5%.

[0024] The preparation method is as follows: dry-mix the ground slag, fly ash and desulfurized gypsum in a forced mixer for 1 minute, then add water and active activator and mix for 3 minutes, and the amount of water is adjusted according to the moisture content of the unground slag , the moisture content is controlled at 10%, and then heavy slag is added as the aggregate to continue stirring evenly, and the discharged material is sent to the aging warehouse to stand for 3 hours, and is pressed by a hydraulic static pressing brick machine, and the product forming pressure is 10MPa; The bricks are sent to the storage yard for stacking and cured under natural conditions. The first 7 days of curing need to be watered three times a ...

Embodiment 2

[0026] High-strength non-steaming brick, calculated by weight percentage, its composition is: unground water slag 30%, heavy slag 44%, fly ash 20%, phosphogypsum 3%, active activator (lime) 3% and water 10% .

[0027] The preparation method is as follows: dry-mix the ground slag, fly ash and phosphogypsum in a forced mixer for 2 minutes, then add water and active activator and mix for 2 minutes, and the amount of water is adjusted according to the moisture content of the unground slag , the moisture content is controlled at 14%, and then heavy slag is added as the aggregate to continue stirring evenly, and the discharged material is sent to the aging warehouse to stand for 6 hours, and is pressed by a hydraulic static pressing brick machine, and the product forming pressure is 12MPa; the pressed The bricks are sent to the storage yard for stacking and maintained under natural conditions. The first 7 days of maintenance need to be watered four times a day, and the later period ...

Embodiment 3

[0029] High-strength non-steaming brick, calculated by weight percentage, its composition is: 40% of unground water slag, 38% of heavy slag, 20% of dry desulfurization ash, 3% of fluorine gypsum, 3% of active activator pulp waste liquid and water 14%.

[0030] The preparation method is as follows: dry-mix the ground slag, dry desulfurization ash and fluorogypsum in a forced mixer for 2 minutes, then add water and active activator and stir for 2 minutes. Adjust the moisture content to be controlled at 14%, then add heavy slag as aggregate and continue to stir evenly, and send the material to the aging warehouse to stand for 5 hours, and use a hydraulic static pressing brick machine to press and form the product. The forming pressure is 10MPa; The pressed bricks are sent to the storage yard for stacking and cured under natural conditions. The first 7 days of curing need to be watered three times a day, and the later stage of curing is watered once a day for 16 days. During the c...

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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

technical field [0001] The invention belongs to the technical field of building materials. Background technique [0002] 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-fired bricks and non-steamed bricks have developed rapidly in various places in recent years. Although the strength can reach more than MU10, there are many problems in durability such as carbonization resistance, shrinkage resistance, and frost resistance. Questions from people in the Chinese brick and tile industry. At present, in the research report and patent technology of non-burning and non-steaming bricks, it is mainly to add alkaline substances such as water glass, sodium hydroxide, and sodium sulfate to the raw materials as activators to stimulate the hydration activity of slag and fly ash. For example, 1.5% trisodium phosphate, 1% anhydrous sodium sulfate or Glauber's salt should be a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C1/00B28C5/00B28B3/00B28B11/24C04B28/14
Inventor 吴江红杨新亚李晖程刚甘万贵汪晖李灿华
Owner 武汉钢铁有限公司
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