Mechanical properties of cement pastes containing plasma-treated silicon-based materials

Authors

  • Zdeněk Prošek Czech Technical University in Prague, University Centre for Energy Efficient Buildings, Třinecká 1024, 273 43 Buštěhrad, Czech Republic; Czech Technical University in Prague, Faculty of Civil Engineering, Thákurova 7, 166 29 Prague 6, Czech Republic
  • Pavel Tesárek Czech Technical University in Prague, Faculty of Civil Engineering, Thákurova 7, 166 29 Prague 6, Czech Republic
  • Aleš Palička Czech Technical University in Prague, Faculty of Civil Engineering, Thákurova 7, 166 29 Prague 6, Czech Republic
  • Oleg Babčenko Czech Academy of Sciences, Institute of Physics, Cukrovarnická 10/112, 162 00 Prague 6, Czech Republic

DOI:

https://doi.org/10.14311/APP.2024.47.0108

Keywords:

cement pastes, plasma treatment, silicon-based waste materials

Abstract

The study delves into the impact of waste silicon-based materials on the mechanical characteristics of the resulting cement pastes. The investigation uses Portland cement CEM I 42.5R in conjunction with silicon-based waste materials sourced from the packaging industry, specifically from Recifa, a.s. Variations between the sample groups arise from differences in the concentration of silicon-based materials and the method of surface treatment. The inquiry seeks to assess the effects of two distinct levels of Si-based material incorporation, namely 10 wt. % and 20 wt. %, along with plasma treatment involving two different gases: oxygen (O2) and hydrogen (H2). The mechanical attributes under scrutiny encompass compressive and flexural strengths. The evaluation of mechanical properties is carried out on samples aged 28 days, with dimensions measuring 20 × 20 × 100 mm.

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Published

2024-05-18

How to Cite

Mechanical properties of cement pastes containing plasma-treated silicon-based materials. (2024). Acta Polytechnica CTU Proceedings, 47, 108–112. https://doi.org/10.14311/APP.2024.47.0108