Coal gangue brick and production technology thereof
The invention discloses a coal gangue brick and a production technology thereof. The coal gangue brick is prepared from the following raw materials in parts by weight: 50 to 75 parts of coal gangue skin, 5 to 20 parts of coal ash and 18 to 30 parts of mixture of spoil, sludge and shale. The coal gan...
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Format: | Patent |
Sprache: | chi ; eng |
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