The paper presents an analysis of the applicability of Portland-slag cement CEM II/A-S 52.5 R in the production of autoclaved aerated concrete. Model studies confirmed that slag cement can be used for the synthesis of tobermorite under hydrothermal conditions. Industrial-scale investigations demonstrated that technological processes, such as the rising and hardening of the concrete mixture, proceed in a comparable manner for CEM I and CEM II/A-S cements. The results also confirmed the absence of significant differences in the strength, phase composition, and microstructure of autoclaved aerated concrete, indicating the full suitability of Portland slag cements for the production of autoclaved aerated concrete.
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