Revised Rebound Hammer and Pull-Out Test Strength Curves for Fiber-Reinforced Concrete

Table 5

Summary of postinstalled pull-out test results.

Grade	PFRC			CFRC			HFRC
	Group	PF (kN)	CS (MPa)	Group	PF (kN)	CS (MPa)	Group	PF (kN)	CS (MPa)
C25	PFRC25-1	15.58	29.61	CFRC25-1	16.69	32.19	HFRC25-1	16.74	31.40
	PFRC25-2	15.04	30.33	CFRC25-2	16.49	30.48	HFRC25-2	18.39	31.44
	PFRC25-3	14.32	29.89	CFRC25-3	17.02	30.22	HFRC25-3	17.05	31.44
	PFRC25-4	15.08	28.28	CFRC25-4	16.07	32.96	HFRC25-4	17.93	32.05
	PFRC25-5	16.02	29.04	CFRC25-5	15.92	30.82	HFRC25-5	16.89	33.27
	PFRC25-6	14.75	29.05	CFRC25-6	17.52	31.39	HFRC25-6	17.52	31.07
C30	PFRC30-1	15.48	33.71	CFRC30-1	17.39	35.53	HFRC30-1	19.01	35.27
	PFRC30-2	16.46	33.27	CFRC30-2	19.86	34.33	HFRC30-2	19.33	35.86
	PFRC30-3	16.23	34.21	CFRC30-3	18.42	35.35	HFRC30-3	19.86	35.27
	PFRC30-4	16.89	32.27	CFRC30-4	18.97	36.47	HFRC30-4	18.58	36.19
	PFRC30-5	17.60	33.18	CFRC30-5	18.07	35.61	HFRC30-5	20.62	36.14
	PFRC30-6	17.16	34.97	CFRC30-6	18.76	34.92	HFRC30-6	19.14	36.91
C35	PFRC35-1	18.67	37.22	CFRC35-1	21.71	39.89	HFRC35-1	22.37	39.80
	PFRC35-2	18.44	38.82	CFRC35-2	20.84	39.98	HFRC35-2	22.38	41.32
	PFRC35-3	19.76	38.37	CFRC35-3	20.29	41.57	HFRC35-3	20.40	40.32
	PFRC35-4	17.71	38.25	CFRC35-4	20.79	41.00	HFRC35-4	21.39	41.37
	PFRC35-5	18.53	39.43	CFRC35-5	20.11	39.80	HFRC35-5	20.87	39.71
	PFRC35-6	19.23	40.01	CFRC35-6	21.04	41.00	HFRC35-6	20.94	41.02
C40	PFRC40-1	19.74	44.04	CFRC40-1	21.91	42.97	HFRC40-1	24.00	44.68
	PFRC40-2	21.63	43.98	CFRC40-2	22.16	44.43	HFRC40-2	23.10	44.26
	PFRC40-3	21.68	42.30	CFRC40-3	23.58	44.77	HFRC40-3	22.58	44.68
	PFRC40-4	20.03	43.71	CFRC40-4	22.78	45.28	HFRC40-4	23.51	45.16
	PFRC40-5	20.69	43.73	CFRC40-5	21.61	45.28	HFRC40-5	23.90	45.98
	PFRC40-6	20.95	42.11	CFRC40-6	22.98	44.74	HFRC40-6	22.63	47.03
C45	PFRC45-1	21.78	47.92	CFRC45-1	23.46	48.61	HFRC45-1	25.76	48.07
	PFRC45-2	23.00	46.94	CFRC45-2	24.51	48.53	HFRC45-2	24.94	48.77
	PFRC45-3	22.62	47.92	CFRC45-3	25.18	49.13	HFRC45-3	25.50	49.38
	PFRC45-4	23.34	46.01	CFRC45-4	25.66	47.07	HFRC45-4	24.16	49.47
	PFRC45-5	21.25	46.94	CFRC45-5	24.28	48.88	HFRC45-5	25.12	49.12
	PFRC45-6	22.71	46.19	CFRC45-6	24.66	49.47	HFRC45-6	26.26	49.90
C50	PFRC50-1	23.31	50.04	CFRC50-1	26.48	51.27	HFRC50-1	27.21	52.51
	PFRC50-2	24.07	51.82	CFRC50-2	25.51	53.21	HFRC50-2	26.70	53.03
	PFRC50-3	23.74	51.07	CFRC50-3	26.96	52.75	HFRC50-3	27.84	53.30
	PFRC50-4	24.85	51.27	CFRC50-4	26.33	53.40	HFRC50-4	28.24	53.47
	PFRC50-5	24.15	50.11	CFRC50-5	26.70	53.34	HFRC50-5	27.16	52.95
	PFRC50-6	22.98	51.78	CFRC50-6	26.53	52.38	HFRC50-6	26.95	54.51

PF = Pull-out force; CS = compressive strength.