Influence of Marble Powder and Polypropylene Fibers on the Strength and Durability Properties of Self-Compacting Concrete (SCC)

Table 5

ANOVA analysis of the response models.

Model	Source	Sum of squares	df	Mean square	F-value	value	Significance of the model
Compressive strength	Model	164.38	3	54.79	8.20	0.0038	Significant
	A-marble powder	161.34	1	161.34	24.14	0.0005
	B-PP fiber	1.82	1	1.82	0.2719	0.6124
	C-cement	1.23	1	1.23	0.1833	0.6768
	Residual	73.53	11	6.68
	Cor total	237.91	14
Split tensile strength	Model	1.00	3	0.3345	10.50	0.0011	Significant
	A-marble powder	0.9958	1	0.9958	31.25	0.0001
	B-PP fiber	0.0027	1	0.0027	0.0846	0.7762
	C-cement	0.0051	1	0.0051	0.1586	0.6974
	Residual	0.3823	12	0.0319
	Lack of fit	0.3823	11	0.0348
	Pure error	0.0000	1	0.0000
	Cor total	1.39	15
Flexural strength	Model	0.8897	9	0.0989	7.50	0.0117	Significant
	A-marble powder	0.6440	1	0.6440	48.89	0.0004
	B-PP fiber	0.0179	1	0.0179	1.36	0.2880
	C-cement	0.0005	1	0.0005	0.0394	0.8492
	Residual	0.0790	6	0.0132
	Lack of fit	0.0789	5	0.0158	159.28	0.0601	Not significant
	Pure error	0.0001	1	0.0001