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

Table 9

ANOVA result for Icorr of carbonated concrete.

Source	Degree of freedom (df)	Sum of squares (SS)	Mean squares (MS)	F-ratio	Probability > F-ratio
Carbonation (A)	1	0.0964	0.0964	3.12	0.0783
Water-to-binder ratios (B)	2	0.1742	0.08711	2.82	0.0612
FA content (C)	5	0.4496	0.08993	2.91	0.014
Steel types (D)	2	0.1729	0.08645	2.8	0.0625
(A)(B)	2	0.1785	0.08923	2.89	0.0572
(A)(C)	5	0.4581	0.09162	2.97	0.0126
(A)(D)	2	0.1788	0.08939	2.9	0.0569
(B)(C)	10	0.9541	0.09541	3.09	0.001
(B)(D)	4	0.3882	0.09705	3.14	0.015
(C)(D)	10	0.9346	0.09346	3.03	0.0012
Error	276	8.5198	0.03087
Total	319	12.4929