Prohlížení dle autora "Koyamada, Hidehiro"

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    • A study on properties of concrete with dry fly ash and fly ash slurry stored with stirring 

      Autor: Ji, Xiangnan; Takasu, Koji; Koyamada, Hidehiro; Suyama, Hiroki
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      In the evaluation of concrete sustainability, what constitutes "sustainable" to one region may vary from another. This often leads to methodological forms of uncertainties that makes the evaluation process more complex. ...

    • Correlation of porosity and properties of recycled fine aggregate concrete with fly ash 

      Autor: Lin, Hangwei; Takasu, Koji; Koyamada, Hidehiro; Suyama, Hiroki
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      In this paper, we presented the experimental discussion of samples of recycled aggregate concrete with replacement of natural fine aggregate by recycled fine aggregate. Three mix kinds were produced and, for each of these ...