Abstract
In the research influence of cements containing calcareous fly ashes W as non-clinker constituent produced by different methods on rheological properties of mortars and its variability is presented. In comparison to mortars with CEM I mortars with cements CEM II/A-W, CEM II/B-W, CEM IV/B-W are characterized by worse workability and faster workability loss, the greater the more fly ash W is in cement. However, using cements CEM II/A-W, CEM II/B-W produced by intergrinding of the constituents or homogenization with ground fly ash W it is possible to obtain mixtures with acceptable rheological properties. Obtained results shows significant influence of properties of the fly ash W on the variability of rheological properties of cement CEM II/B-W mortars. However, if fly ashes W with a bulk density of less than 900 kg/m3 are not used for the production of cement, it is possible to achieve variability of the rheological properties of mortars, to a level not deviating significantly from other types of cements.
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Acknowledgement
This research was co-financed by the EU from the European Regional Development Fund no. POIG 01.01.02.-24-005/09 Innovative cementitious materials and concretes made with high calcium fly ashes.
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Gołaszewski, J., Ponikiewski, T., Kostrzanowska-Siedlarz, A. (2020). Influence of Cements Containing Calcareous Fly Ash on Rheological Properties of Fresh Mortars and Its Variability. In: Mechtcherine, V., Khayat, K., Secrieru, E. (eds) Rheology and Processing of Construction Materials. RheoCon SCC 2019 2019. RILEM Bookseries, vol 23. Springer, Cham. https://doi.org/10.1007/978-3-030-22566-7_11
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DOI: https://doi.org/10.1007/978-3-030-22566-7_11
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