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The development of cements that produce less CO2 is important for the preservation of our environment. One way to reduce greenhouse gas emissions is to produce belite cements that contain a higher proportion of belite than alite. Although the long-term strengths of this type of cement are comparable or even higher than those of ordinary Portland cement, their disadvantage is insufficient initial strengths) due to the slow hydration of belite. In this work, the effect of adding SO3 to the raw meal on the initial st...

In the context of the pressure to reduce the production of CO2 emissions in cement manufacturing, cement plants are significantly changing their product portfolios. Changes in the composition of cement products also lead to changes in their properties. This paper focuses on the monitoring and non-standard evaluation of initial volume stability. Several different types of currently used cements produced in various cement plants in the Czech Republic and Slovakia in 2022 and 2023 were tested using the -initial volum...