Experimental Study and Prediction Model of the Flexural Strength of concrete Containing Fly Ash and Ground Granulated Blast-Furnace Slag

Table 5

Range analysis of concrete flexural strength.

1 d	A	B	C	D	E
K1	2.90	2.59	2.29	2.26	2.54
K2	2.99	2.68	2.52	2.23	2.76
K3	2.16	2.40	2.69	2.76	2.36
K4	1.99	2.37	2.53	2.78	2.37
R	1.00	0.31	0.40	0.55	0.40
Better scheme (BS)	A2	B2	C3	D4	E2
Factor priority (FP)	ADECB/ADCEB
3 d	A	B	C	D	E
K1	4.59	4.15	3.88	3.85	3.95
K2	4.42	4.20	4.23	3.94	4.26
K3	3.75	4.15	4.34	4.23	4.09
K4	3.64	3.90	3.95	4.38	4.10
R	0.95	0.30	0.47	0.53	0.31
BS	A1	B2	C3	D4	E2
FP	ADCEB
7 d	A	B	C	D	E
K1	5.56	5.06	4.86	4.95	4.86
K2	5.50	5.08	5.25	5.05	5.28
K3	4.67	5.25	5.26	5.03	5.08
K4	4.55	4.88	4.92	5.25	5.08
R	1.01	0.37	0.40	0.30	0.42
BS	A1	B3	C3	D4	E2
FP	AECBD
14 d	A	B	C	D	E
K1	6.17	5.69	5.50	5.58	5.41
K2	5.97	5.70	5.80	5.65	5.80
K3	5.41	5.80	5.83	5.64	5.68
K4	5.08	5.43	5.50	5.76	5.72
R	1.08	0.37	0.34	0.18	0.39
BS	A1	B3	C3	D4	E2
FP	AEBCD
28 d	A	B	C	D	E
K1	6.67	6.26	6.04	6.06	5.93
K2	6.47	6.20	6.27	6.10	6.31
K3	5.99	6.39	6.28	6.26	6.27
K4	5.63	5.91	6.18	6.35	6.26
R	1.04	0.48	0.24	0.29	0.33
BS	A1	B3	C3	D4	E2
FP	ABEDC
45 d	A	B	C	D	E
K1	6.92	6.54	6.32	6.31	6.30
K2	6.71	6.55	6.52	6.38	6.54
K3	6.33	6.62	6.57	6.63	6.54
K4	5.95	6.21	6.51	6.60	6.53
R	0.98	0.41	0.26	0.33	0.24
BS	A1	B3	C3	D4	E2/E3
FP	ABDCE