[101080] Artykuł: Influence of maturing conditions of steel-fibre reinforced concrete on its selected parameters(Wpływ warunków dojrzewania na wybrane parametry betonu zbrojonego włóknami)Czasopismo: Construction of optimized energy potential. Budownictwo o zoptymalizowanym potencjale energetycznym. Tom: 9, Zeszyt: 1, Strony: 47-54 ISSN: 2299-8535 Opublikowano: 2020 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Publikacja w czasopismach wymienionych w wykazie ministra MNiSzW (część A) Punkty MNiSW: 40 Pełny tekst DOI YADDA/CEON Keywords: Keywords: concrete  steel-fibre  fibre-reinforced concrete  compressive strength  Youngs modulus  |
Abstract: In the article the impact of varying humidity conditions on selected strength properties of
hardened steel fibre-reinforced concrete (such as Young’s modulus and the compressive
strength of concrete) were analysed. The analysis shows that the value of the Young’s
modulus of concrete cured under 100% humidity conditions is the highest; 35% higher
compared to concrete hardening in the laboratory hall and about 18% higher than modulus
measured in the concrete samples maturing in the chamber. A much higher compressive
strength of approx. 25% was observed in samples hardening under 100% humidity conditions than in the other two environments. It was also observed that the non-uniform distribution of samples in the chamber and opening and closing the chamber during sample maturation had an impact on the dispersion of the results and due to the coefficient of variation,
results can be even worse than in free-maturing samples.