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

Table 4

Icorr (μA/cm²) for carbonated CPSE for various types of steel and different fly-ash content with water-binder ratios.

Steel type	CRS			Tata TMT			Local TMT
% FA content	w/b			w/b			w/b
	0.35	0.40	0.45	0.35	0.40	0.45	0.35	0.40	0.45
0	1.3	1.7	2.1	1.8	1.9	1.9	2.2	2.8	3.1
20	1.2	1.8	2.3	1.9	1.6	1.8	2.1	3.4	3.9
40	1.2	1.4	2.3	1.5	1.5	2.4	1.6	2.5	3.6
50	0.9	1.5	1.9	1.3	1.5	2.2	2	2.5	2.8
60	1.8	2.4	2.8	2.0	2.5	3.0	2.2	2	2.4
70	2.2	2.5	3.1	2.6	2.7	3.1	2.5	3.8	4.3