The Effect of Steel Fibers on the Interlocking Length between Reinforcement and Concrete and on Compressive Strength of Concrete

Table 6

Comparison of maximum load capacities, steel fiber ratios, and development lengths for concrete samples with K1 and K2 mixtures.

Interlocking length (cm)	Sample arithmetic averages	K1T25 average (AVR) (kN)	K1T50 average (AVR) (kN)	K1T100 average (AVR) (kN)	K1EMPTY average (AVR) (kN)
5 cm	Average	17.17	17.74	26.44	37.75
10 cm	Average	42.82	36.40	35.84	30.89
15 cm	Average	51.92	45.87	45.92	45.83
Interlocking length (cm)	Sample arithmetic averages	K2T25 average (AVR) (kN)	K2T50 average (AVR) (kN)	K2T100 average (AVR) (kN)	K2EMPTY average (AVR) (kN)
5 cm	Average	24.1	26.84	23.24	33.50
10 cm	Average	46.14	39.05	40.96	48.53
15 cm	Average	53.47	50.47	51.51	51.92