Many countries have resources of calcareous oil shale with low calorific value that are unsuitable for energy production. The chemical composition of calcareous oil shale is similar to that of Portland cement clinker. This study aimed to maximize the replacement of raw materials in clinker production with calcareous oil shale, while maintaining standard quality characteristics. Utilization of calcareous oil shale in raw state can partially replace both fuel and other raw materials. In this research, belite-rich Portland cement clinker was produced and studied in the laboratory. Grinding time and sulfate content were optimized and cement was prepared. The cement was investigated and its compliance with standard requirements was tested. We showed that oil shale can replace up to 76 % of raw materials in clinker manufacturing, which is sufficient for calcination and final burning in a rotary kiln. This means that oil shale can partially replace fuel, reducing CO₂ emissions during clinker production.

许多国家拥有不适合能源生产的低热值钙质油页岩资源。钙质油页岩的化学成分与波特兰水泥熟料相似。本研究旨在最大限度地用钙质油页岩替代熟料生产中的原材料，同时保持标准的质量特性。利用原始状态的钙质油页岩可以部分替代燃料和其他原材料。在本研究中，在实验室生产和研究了富含贝利特的波特兰水泥熟料。优化研磨时间和硫酸盐含量，制备水泥。对水泥进行了调查，并测试了其是否符合标准要求。我们发现油页岩可以替代高达 76% 的熟料制造原材料，这足以在回转窑中进行煅烧和最终燃烧。这意味着油页岩可以部分替代燃料，减少二氧化碳排放₂熟料生产过程中的排放。