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