Research Article
Effects of PET Fibers on Pumpability, Shootability, and Mechanical Properties of Wet-Mix Shotcrete
Table 4
Details of mix proportions in the L9 orthogonal array.
| Experimental no. | Independent variables | Blank | Width | Length | Content |
| No. 1 | 1 | 1 | 1 | 1 | No. 2 | 1 | 2 | 2 | 2 | No. 3 | 1 | 3 | 3 | 3 | No. 4 | 2 | 1 | 2 | 3 | No. 5 | 2 | 2 | 3 | 1 | No. 6 | 2 | 3 | 1 | 2 | No. 7 | 3 | 1 | 3 | 2 | No. 8 | 3 | 2 | 1 | 3 | No. 9 | 3 | 3 | 2 | 1 |
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