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(一) 前言煤矸石是煤层中或周围渗有可燃物质的岩石,在煤炭采掘、洗选过程中作为废石丢弃。通常所说的煤矸石包括炭质页岩、泥质页岩和砂质页岩。我国是世界主要产煤国之一,煤矸石年排量约在一亿吨左右,比冶金渣和粉煤灰年排量的总和还要多。建筑、建材工业开发利用丰富的煤矸石资源,既能部分解决煤矸石的处理问题,又有助于解决当前建筑材料供
(I) Introduction Coal gangue is a rock infiltrated with corrosive substances in or around coal seams. It is discarded as waste rock in the process of coal mining and washing. Commonly referred to as coal gangue includes carbonaceous shale, shale shale and sandy shale. China is one of the major coal-producing countries in the world. The annual output of coal gangue is about one hundred million tons, which is more than the sum of the annual displacement of metallurgical slag and fly ash. Building and building materials industry develops and utilizes a variety of coal gangue resources, which not only partially solve the problems of coal gangue processing, but also help solve the current supply of building materials.