Environmentally-friendly hollow brick and preparation method thereof

A hollow brick and environmental protection technology, applied in the field of environmental protection hollow brick and its preparation, can solve the problems of waste of resources such as clay, pollute the environment, and high cost, and achieve the effects of stable comprehensive product quality, high ratio of waste and recycling, and low cost.

Inactive Publication Date: 2014-12-17
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AI-Extracted Technical Summary

Problems solved by technology

[0003] With the development of the construction industry, the demand for hollow bricks is increasing. The waste of manufacturing...
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The invention discloses an environment-friendly hollow brick made of the following raw materials by weight: 20-50 parts of an environment-friendly powder particle building material, 10-20 parts of slag ash, 10-15 parts of sand, 8-10 parts of homemade concrete, 20-30 parts of nickel chromium iron alloy slag, 10-12 parts of carbide slag, 4-6 parts of highly-viscous attapulgite clay powder, 5-6 parts of sodium bicarbonate, 2-3 parts of sodium alkyl benzene sulfonate, 0.3-0.5 part of dihydroxyethyl or hydroxypropyl methylcellulose, 0.1-0.3 part of tea saponin, 1-2 parts ofantimony oxide, 4-6 parts of zinc borate, and the proper amount of water. The environment-friendly hollow brick is high in slag-mixing recycling ratio, wide in material source, low in cost, wide in use and stable in comprehensive quality of product, also has the advantages of high fire resistance, simple processing technology, no environmental pollution, and the like, and provides a new source of raw materials for the production of hollow bricks.

Technology Topic

Hydroxypropylmethyl celluloseOxide +15


  • Experimental program(1)

Example Embodiment

[0014] An environmentally friendly hollow brick made of the following weight (kg) of raw materials: environmentally friendly powdered building materials 40, slag ash 15, sand 13, homemade concrete 9, nickel-chromium iron alloy slag 26, calcium carbide slag 11, high-viscosity attapulgite clay Powder 5, sodium bicarbonate 5, sodium alkylbenzene sulfonate 2, dihydroxyethyl or hydroxypropyl methyl cellulose 0.4, tea saponin 0.2, antimony oxide 2, zinc borate 5, appropriate amount of water,
[0015] Among them, self-made concrete is prepared by the following methods: (1). Weigh construction waste 45, aluminum sulfate slag 13, pozzolan 14, zeolite powder 2.5, fly ash 3.5, crop straw powder 11, and sawdust 11 by weight (kg) , Waste aluminum powder 1.5, magnesium oxide 3, rosin saponified ester 2, acetic acid 14, urea 7, glycidyl methacrylate 1, methacrylate 2, ethylene diamine 4, linseed oil 0.3; (2), will weigh The taken construction waste is crushed, and then put into the nano-silica hydrocolloid with a concentration of 20-30%, soaked for 7 days, and taken out to obtain material A; (3). Magnesium oxide, rosin saponified ester, acetic acid, urea , Glycidyl methacrylate, methacrylate, ethylenediamine, and linseed oil are added to the stirring tank, mixed and fully stirred at room temperature for 13 minutes to obtain material B; (4) Mix material A and material B into the formula Mix the rest of the materials, then add an appropriate amount of water to mix into a slurry, then add the waste aluminum powder into the slurry and stir it fully, then add it to the agitating forming machine to process it into a raw material ball, dry it naturally, and then pass 250 It is calcined at ℃ for 1 hour and then crushed into powder.
[0016] The preparation method of environmentally friendly hollow bricks includes the following steps:
[0017] (1) Weigh each component raw material by weight, and crush the weighed block material into powder to obtain 1 material;
[0018] (2) Mix the high-viscosity attapulgite clay powder, sodium bicarbonate, sodium alkylbenzene sulfonate, dihydroxyethyl or hydroxypropyl methyl cellulose, tea saponin and appropriate amount of water together, at a temperature of 60 Stir for 10-20 minutes at ℃-70℃ to obtain a slurry, then add antimony oxide and zinc borate into it, and fully stir for 5-10 minutes at room temperature to obtain 2 ingredients;
[0019] (3) Mix 1 ingredient and 2 ingredients and the rest of the ingredients in the formula, then add an appropriate amount of water and stir to form a slurry, and let it stand at 60-70℃ for 25 minutes; (4) Inject the settled slurry into The green body is formed by pressing in the forming mold, and the green body is steam cured into an environmentally friendly hollow brick.
[0020] After testing, the bulk density, thermal conductivity, and pressure-bearing capacity of the hollow brick prepared in this embodiment are: 1440kg/m3, 0.189w/(m.K), 4.458Mpa, respectively.


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