Issue 42

A. Jadidi et alii, Frattura ed Integrità Strutturale, 42 (2017) 249-262; DOI: 10.3221/IGF-ESIS.42.27 259 a) Crimped fiber (L/D=30) b) Hybrid fiber (L/D=50) Figure 18 : Load-displacement graph - samples reinforced with 2% steel fibers on 28-day. Figure 19 : Load- displacement graph - samples reinforced with 2% hybrid steel fibers (L/D=50, L/D=50) on 28-day. a) Hooked fiber (L/D=30) b) Hooked fiber (L/D=50) Figure 20 : Load-displacement graph - samples reinforced with 2.5% steel fibers on 28-day. a) Crimped fiber (L/D=30) b) Hybrid fiber (L/D=50) Figure 21 : Load- displacement graph - samples reinforced with 2.5% steel fibers on 28-day.