Issue 41

S. Zhao et alii, Frattura ed Integrità Strutturale, 41 (2017) 412-423; DOI: 10.3221/IGF-ESIS.41.52 416 Figure 5: Relationship between the factors, the levels, and the K values (carbon fiber). Figure 6: Relationship between the factors, the levels, and the K values (steel fiber). Numbering Carbon fiber compressive strength test results (MPa) Steel fiber compressive strength test results(MPa) Ordinary Portland Cement Composite Portland cement Ordinary Portland Cement Composite Portland cement 1 41.54 50.16 41.54 50.16 2 42.72 47.91 42.72 47.91 3 43.45 46.70 43.45 46.70 4 50.81 43.64 56.42 45.10 5 40.30 38.34 37.84 56.72 6 40.25 37.26 34.26 53.42 7 43.57 40.56 40.70 47.40 8 40.73 48.24 34.75 56.14 9 43.10 46.60 36.89 54.42 Table 4: Anti-splitting test results. Figure 7: Relationship between factors, levels, and K values (carbon fiber). Figure 8: Relationship between factors, levels, and K values (steel fiber).