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

Table 5

ANOVA result for rest 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	13048	6524	6.78	0.0173
FA content (B)	5	161679	32335	8.81	0.7892
Steel types (C)	2	130394	65197	17.76	0.0515
(A)(B)	10	192680	19268	5.25	0
(A)(C)	4	86042	21510	5.86	0.0002
(B)(C)	10	61943	6194	1.69	0.0906
Error	126	462549	3671	—	—
Total	159	1099757	—	—	—