Tea seed episperm powder aerated concrete block and preparation method thereof
A technology of tea seed shell powder and aerated bricks, which is applied in the field of building materials, can solve the problems of large drying shrinkage, single source of materials, poor heat insulation, etc., achieve high compressive strength, increase hydrophobicity, and improve water seepage effect of ability
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[0017] A tea seed shell powder aerated brick is characterized in that it is made of the following raw materials in parts by weight (kg):
[0018] Broken brick slag 35, fly ash 25, cement 18, lime 12, sodium benzoate 3, gypsum 15, aluminum powder 1, tea seed shell powder 25, vermiculite powder 10, polyvinyl alcohol 8, borax 2, waste engine oil 3, over Sodium sulfate 3, asphalt 3, silane coupling agent KH570 2, appropriate amount of water.
[0019] The preparation method of the tea seed shell powder aerated brick is characterized in that it comprises the following steps:
[0020] (1) Add tea seed shell powder and waste engine oil to an appropriate amount of water, heat to 90-100°C, stir for 10-15 minutes, then add polyvinyl alcohol and borax, stir for 20-30 minutes, then add sodium persulfate , asphalt, stir for 20-30 minutes, then add silane coupling agent KH570 and stir for 30-40 minutes to form a slurry;
[0021] (2) Mix cement, fly ash, lime, gypsum, add to appropriate amo...
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