Corrosion Zones of Rebar in High-Volume Fly-Ash Concrete through Potentiodynamic Study in Concrete Powder Solution Extracts: A Sustainable Construction Approach

Table 6

ANOVA result for active to passive potential for uncarbonated concrete.

Source	Degree of freedom (df)	Sum of squares (SS)	Mean squares (MS)	F-ratio	Probability > F-ratio
Water-to-binder ratios (A)	2	16664	8332	12.98	0.0327
FA content (B)	5	231264	46252	5.42	0.0001
Steel types (C)	2	139922	69961	8.21	0.0004
(A)(B)	10	486304	48630	5.7	0
(A)(C)	4	79572	19893	2.33	0.0593
(B)(C)	10	262000	26200	2.33	0.0016
Error	126	1074330	8526
Total	159	2350724