通过试验研究确定大庆油页岩灰符合火山灰质混合材要求，能与熟料掺混生产水泥。
It was confirmed that the oil shale ash met the requirement of the standards of pozzuolanic admixture and could be as cement filler.
油页岩常与上覆沉凝灰岩或其它凝灰质岩石呈伴生关系。
Oil shale always has the accompanying relationship with overlying sedimentary tuff or other tuffaceous strata.
油页岩常与上覆沉凝灰岩或其它凝灰质岩石呈伴生关系。
Oil shale always has the accompanying relationship with overlying sedimentary tuff or other tuffaceous strata.
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