Estimation of Compressive Strength and Member Size of Steel Fiber Reinforced Concrete Using Stress Wave-Driven Nondestructive Test Methods

International Journal of Concrete Structures and Materials

Table 4 Experimental results

No.	Specimen name	Measure depth (mm)	Estimated depth (mm)			Average of estimated depth (mm)	Error ratio (%)	Average of error ratio (%)
1	SFVF0D600	597	583	573	583	580	2.85	4.28	3.57
2	SFVF0D500	496	500	550	500	517	4.23
3	SFVF0D400	395	402	388	417	374	5.32
4	SFVF0D350	340	350	388	331	356	4.71
5	SFVF0S300	285	273	281	276	277	2.81	2.86
6	SFVF0S200	180	190	177	171	179	0.56
7	SFVF0S150	130	121	124	119	121	6.92
8	SFVF0S100	80	75	73	89	79	1.25
9	SFVF0.75D600	610	594	594	594	594	2.62	1.77	1.73
10	SFVF0.75D500	504	489	500	528	506	0.40
11	SFVF0.75D400	395	395	403	413	404	2.28
12	SFVF0.75D350	340	342	354	342	346	1.76
13	SFVF0.75S300	300	290	321	290	300	0.00	1.69
14	SFVF0.75S200	190	190	205	187	194	2.11
15	SFVF0.75S150	142	147	133	151	144	1.41
16	SFVF0.75S100	93	103	93	91	96	3.23
17	SFVF1D600	598	573	573	573	573	4.18	1.86	4.78
18	SFVF1D500	496	489	505	505	500	0.81
19	SFVF1D400	392	381	392	381	385	1.79
20	SFVF1D350	340	342	331	342	338	0.67
21	SFVF1S300	300	330	340	300	323	7.67	7.70
22	SFVF1S200	196	198	180	190	189	3.57
23	SFVF1S150	145	147	141	147	145	0.00
24	SFVF1S100	92	118	98	115	110	19.57