The use of dolomite powder as a main constituent in blended cements

水泥行业正在不断调整其生产，以适应水泥，从而降低二氧化碳排放。这通常是通过石灰石粉部分替代水泥熟料来实现的。许多水泥厂的石灰石采石场被一层厚厚的白云岩或白云岩覆盖。这一层的材料不能用于生产水泥。在混合水泥中不含白云石粉作为主要成分，并没有明显的工艺原因。在混合水泥中使用白云石粉可以提高水泥生产的可持续性。因此，该项目的目的是获得关于含白云石粉混合水泥性能的基本知识。为此，需要详细研究白云石粉对水泥性能、水泥水化和混凝土耐久性的影响。

The cement industry is continuously adapting its production to cements, which cause lower CO2-emissions. This is often achieved by a partial substitution of the cement clinker by limestone powder. The limestone quarries of many cement plants are covered by a thick layer of dolomitic limestone or dolomite. The material from this layer cannot be used for the production of cement. There exist no distinct technological reasons for the exclusion of dolomite powder as a main constituent in blended cements. The use of dolomite powder in blended cements could raise the sustainability of cement production. Aim of the project is thus, to achieve basic knowledge about the performance of blended cements containing dolomite powder. To achieve this, the impact of dolomite powder on cement properties, cement hydration and on the durability of concrete shall be investigated in detail.