engleski

Evaluation of HP-SFRC post-crack behaviour

4-year-old steel fibre reinforced concrete (SFRC) specimens were investigated to determine some parameters for evaluation post-crack behaviour of the HP-SFRC. Following parameters for evaluation post-crack behaviour of concrete were calculated from load- CMOD curves: absorption energy failure zone and equivalent strength at the appointed crack width. Three point bending congiguration was used to determine load-CMOD curves. The results of investigations show that high performance behaviour remain after 4 years only SFRC with steel fibres with aspect ratio of 100.

high performance fiber reinforced concrete; steel fibres; toughness; absorption energy of failure zone; equivalent strength at the appointed crack width

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