Faculty of Civil and Geodetic Engineering, Ljubljana (FGGLJ)
13.
Vpliv sestavnih materialov na mehanske lastnosti betonov visokih trdnosti = Influence of constituent materials on mechanical properties of high-strength concrete
Saje, Drago ; Kavčič, Franci
V zadnjem času sta se v svetu razvoj in uporaba betonov visokih trdnosti močno povečala. Le-ti se vgrajujejo v betonske konstrukcije mostov, visokih stavb, vrtalnih ploščadi v morju, v prefabricirane ...betonske elemente, betonskevoziščne površine in drugod. Ugodne lastnosti betonov visokih trdnosti bi lahko v širšem obsegu izkoristili tudi pri nas, saj v Sloveniji na tem področju še ni bilo veliko narejenega. S tem namenom smo izvedli eksperimentalni program, v okviru katerega smo raziskovali mehanske lastnosti betonov visokih trdnosti iz materialov, ki so dostopni na našem tržišču. Pri tem smo preučevali vpliv različnih kombinacij osnovnih sestavnih materialov, kot so skupna zrnavostna sestava agregata, vrsta cementa, količina mineralnegadodatka glede na maso cementa, celotna količina veziva in vodovezivno razmerje, na karakteristike betonov visokih trdnosti, kot so tlačna trdnost, statični elastični modul in upogibna natezna trdnost. 28-dnevne tlačne trdnosti preizkuševalnih betonov so se gibale med 73 in 92MPa
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