• 1 Medical University „Prof. Dr. Paraskev Stoyanov“, Varna, Bulgaria
  • 2 Technical University, Sofia, Bulgaria
  • 3 University „Prof. Dr. Asen Zlatarow “, Burgas, Bulgaria


This work is a continuation of the HUPER development, as in this study hydrophilization was performed by different types of cement (grey cement and medical cement). It was established that alkaline hydroxides in the cement “milk” composition traditionally perform the preselected role of a hydrophilizer. Water was used as a second dispersing component, which can not only homogenize the composition of the prepared composite material. A third component was introduced (water glass), which was studied due to its dispersing role towards the resin/cement/water system. Mechanical strength characteristics (mostly impact characteristics) characterizing the shape, dimensions and integrity of the operational product were studied based on the obtained composition in various proportions of components.


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