Corrosion Resistant Coating from Nano Printed Circuit Board Powder for the Reinforced Concrete Structures

Table 3

Comparison of potentiodynamic polarization test.

S.no	Description	Uncoated rebar	Zinc coated	Nano PCB coated
1	CAT slope (I/V)	3.600	5.676	5.927
2	ANO slope (I/V)	9.315	4.656	4.565
3	CAT int (log i)	−3.325	−3.671	−3.693
4	ANO int (log i)	−2.870	−3.545	−3.613
5	Lin Pol R (ohm)	37	159	153
6	CORR I (A)	9.136e − 0.004	2.398e − 0.002	2.586e − 0.002
7	Rate (mm/year)	4.169e + 0.002	1.342e + 0.002	1.319e + 0.002
8	Rate (Angs/min)	2.014e + 0.002	5.780e + 0.01	5.931e + 0.01
9	Rate (gram/h)	9.518e − 0.004	3.012e − 0.002	2.96e − 0.002