Sripriya Rengaraju

6 Questions 11 Answers 0 Followers

Questions related from Sripriya Rengaraju

What could be the reason behind similar EIS spectra in the low frequency even after changing amplitude?

I am testing steel embedded in mortar. Test parameters are AC mplitude 10 mV; Frequency 10^6 to 0.01 Hz, 10 points per decade and OCP as DC potential. My EIS curve looks similar in the low...

03 March 2019 1,428 4 View

I am getting two types of EIS spectra when testing the same sample in two different machines. How to identify the correctness of the spectra?

I am testing steel embedded in mortar with a lollipop type specimen. When I test it from 1MHz to 1Hz, with ac amplitude 10 mV in solartron FRA 1260 coupled with 1287A, I am getting negative...

07 March 2018 8,216 6 View

Why Linear Polarisation Resistance Curve is not crossing OCP?

Dear all, I am using solartron potentiostat 1287 and measuring Linear Polarisation Resistance by potential sweep -15mV to +15 mV from open circuit potential.Scan rate:0.1667 mV/s. I am testing...

24 November 2016 6,506 6 View

How positioning of electrodes in three electrode system affects the corrosion rate measurement?

I am working on corrosion monitoring of steel embedded in concrete? Different authors adopt different cell geometry. I am unable to find the science behind the cell configuration. Kindly help

21 June 2016 4,071 10 View

Will ohmic drop occur in measurement of polarisation resistance using Electrochemical impedance spectroscopy technique?

I am trying to understand the ohmic drop occur in the measurement of polarization resistance of steel embedded in concrete. In Linear polarization technique, ohmic drop concept is clear. In...

21 June 2016 1,095 10 View

Can Rapid Chloride Penetration Test (RCPT) be done on 70mm core?

can Rapid Chloride Penetration Test (RCPT) be done on 70mm core? Due to specimen size, i cannot go beyond 70mm core. is there any calibration chart for the coulombs passed in specimens with...

24 November 2015 799 3 View