Table 7: Effect of using 0.8% steel fibers on cracking and ultimate loads.

Slab Designation	Vf%	Pcr (kN)	Pu (kN)	Pcr/ Pu	ΔPcr %	ΔPu %
MRPCS 1-0-50	0	21	73	0.29	50	63
MRPCS 1-0.8-50	0.8	32	119	0.27
MRPCS1-0-70	0	35	128	0.27	23	23
MRPCS1-0.8-70	0.8	43	158	0.27
MRPCS2-0-50	0	30	97	0.31	20	26
MRPCS2-0.8-50	0.8	36	122	0.29
MRPCS2-0-70	0	39	146	0.27	48	66
MRPCS2-0.8-70	0.8	58	242	0.24