Research Article
Effects of PET Fibers on Pumpability, Shootability, and Mechanical Properties of Wet-Mix Shotcrete
Table 5
Results of orthogonal tests for wet-mix shotcrete reinforced by PET fibers.
| | No. | Width (mm) | Length (mm) | Content (kg/m3) | Slump (cm) | Pressure drop (kPa/m) | Build-up thickness (cm) | Compressive strength (MPa) | Splitting strength (MPa) |
| | 1 | 1 | 10 | 5 | 16 | 25 | 13.8 | 47.6 | 3.8 | | 2 | 2 | 20 | 7 | 12 | 30 | 15.8 | 44.3 | 4.3 | | 3 | 3 | 30 | 9 | 13 | 38 | 17.2 | 36.2 | 4.6 | | 4 | 1 | 20 | 9 | 9 | 30 | 16.0 | 45.1 | 4.7 | | 5 | 2 | 30 | 5 | 10 | 27 | 17.6 | 46.2 | 4.9 | | 6 | 3 | 10 | 7 | 18 | 40 | 14.7 | 39.6 | 3.9 | | 7 | 1 | 30 | 7 | 11 | 28 | 16.0 | 46.3 | 4.8 | | 8 | 2 | 10 | 9 | 14 | 33 | 15.5 | 42.7 | 4.4 | | 9 | 3 | 20 | 5 | 15 | 35 | 13.3 | 38.1 | 4.0 |
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