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

Table 7

ANOVA result for passive to transpassive 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	783993	391996	31.16	0.0014
FA content (B)	5	351490	70298	5.59	0.0001
Steel types (C)	2	106158	53079	4.22	0.0168
(A)(B)	10	427751	42775	3.4	0.006
(A)(C)	4	123597	30896	2.46	0.0491
(B)(C)	10	10002	10000	0.79	0.6338
Error	126	1585229	12581
Total	159	3443156