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  • One of the main factors determining compressive strength of hydrated materials based on Portland cements is the micro-structural arrangement of their major binding component, the so-called C-S-H gel. The micro-structure of this gel is fractally arranged. Recent results of the Czech research group have showed a possibility of quantitatively deriving the compressive strength of the C-S-H gel from its micro-structural fractal characteristics. The goal of the proposed joint research is to perform a deeper analysis of the mentioned phenomenon, both theoretically and experimentally. The analysis should result in formulating a new non-destructive method for assessment of the status of mechanical strength of C-S-H gel. The envisaged method will be based on the microscopic-fractal principle. The consequence of this principle is the existence of a relationship between compressive strength and the fractal dimension of the gel microstructure. Studies in this field performed so far could not indicate this r (en)
  • Zjištění a ověření vztahu mezi fraktální dimenzí mikrostruktury cementového pojivového gelu a jeho mechanickou pevností v tlaku. Formulovat novou nedestruktivní metodu testování pevnostního stavu cementových materiálů.
Title
  • Development of a new non-destructive method for assessment of compressive strength of hydrated cement materials (en)
  • Vývoj nové nedestruktivní metody pro posuzování pevnosti v tlaku hydratovaných cementových materiálů
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  • ME09046
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  • Porous materials; microstructure of cement gels; fracture surfaces; compressive strength; fractal geometry; fractal dimensions; assessment of mechanical strength (en)
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  • Byla provedena analýza statistické spolehlivosti nové topografické metody určování pevnosti v tlaku. Přihláška patentu byla přijata u českého Úřadu průmyslového vlastnictví. Tím byla zajištěna průmyslová práva k vynálezu. Výsledky za r. 2012: 1 patent, 1 užitný vzor, 4 časopisecké publikace a 1 manuál. (cs)
  • The analysis of statistical reliability of the topographic method for determining compressive strength vi/as performed. A patent document was accepted by the Czech Patent Office. This ensured the industrial rights concerning the invention. Results In year 2012:1 patent, 1 industrial pattern, 4 journal papers and 1 manual. (en)
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  • Porous materials
  • compressive strength
  • fracture surfaces
  • fractal dimensions
  • fractal geometry
  • microstructure of cement gels
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