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

Table 6

Models’ validation.

Model terms	Compressive strength	Split tensile strength	Flexural strength	Source	Sequential value
Std. dev	2.83	0.1207	0.6101	Linear
Mean	20.59	2.33	9.81	Linear
C.V %	13.74	5.18	6.22	Linear
R^2	0.9135	0.9208	0.9039	Linear	<0.0001
Adj. R^2	0.9081	0.8982	0.8759	Linear	<0.0001
Pred. R^2	0.8801	0.8279	0.8385	Linear	<0.0001