Comparative Study of Strength and Corrosion Resistant Properties of Plain and Blended Cement Concrete Types

Table 7

AC-impedance parameters for the corrosion of rebar embedded in OPC, PPC, and PSC M40 grade concrete (90-day cured specimens).

System	Various grades of concrete
	M30			M40
	(ohms⋅cm^2) × 10^4	(mA/cm^2) × 10^−4	Corrosion rate (mmpy) × 10^−3	(ohms⋅cm^2) × 10^6	(mA/cm^2) × 10^−5	Corrosion rate (mmpy) × 10^−4
OPC	3.464	7.531	8.728	1.399	1.865	2.161
PPC	3.885	6.715	7.782	1.594	1.637	1.897
PSC	4.399	5.930	6.873	1.714	1.522	1.764