Fundamental properties of industrial hybrid cement: utilization in ready-mixed concretes and shrinkage-reducing applications


  • P. Martauz Cement plant - Považská cementáreň, a.s.
  • I. Janotka Building Testing and Research Institute
  • J. Strigáč Cement plant - Považská cementáreň, a.s.
  • M. Bačuvčík Building Testing and Research Institute



Hybrid cement, Alkaline waste waters, Ready-mixed concretes, Shrinkage-reducing cement


Utility properties of novel hybrid cement (H-Cement) are influenced by pozzolanic reaction of fly ash, latent hydraulic reaction of metallurgical slag together with the alkali activation of inorganic geopolymer based on precipitated waste water coming from bauxite residues. Content of Portland cement clinker is at maximum of 20 mass %, the remaining portion consists of inorganic geopolymer. Up to 80% of CO2 emissions are saved by H-Cement manufacture compared to ordinary Portland cement (OPC). No heat treatment or autoclaving is needed at H-Cement production. The field application of H-Cement is performed by the same way than that of common cements listed in EN 197-1, and is also connected with highly efficient recovery and safe disposal of red mud waste. H-Cement is suitable for ready-mixed concretes up to C30/37 strength class and is specified by beneficial shrinkage-reducing property of the concrete kept in long dry-air cure opposite to common cements.


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How to Cite

Martauz, P., Janotka, I., Strigáč, J., & Bačuvčík, M. (2016). Fundamental properties of industrial hybrid cement: utilization in ready-mixed concretes and shrinkage-reducing applications. Materiales De Construcción, 66(322), e084.



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