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Context
A Simple Arrangement and Procedure for Insitu Measurement of Corrosion Rate of Rebar Embedded in Concrete
Title:
A Simple Arrangement and Procedure for Insitu Measurement of Corrosion Rate of Rebar Embedded in Concrete
Archive:
Eprints@IIT Delhi
Author(s):
Ahmad, S
Bhattacharjee, B
Bhattacharjee, B
Date:
2005-04-06
Abstract:
An arrangement for the in-situ measurement of the corrosion current density, i.e. corrosion
rate, of rebrrr embedded in concrete through a linear polarisation technique is described. It incorporates a simple experimental method being suggested for determination of the ohmic resistance of concrete, which enables the ohmic drop to be eliminated mathematically from the polarisation data. The error due to nonuniform
distribution of the applied electric signal through a small size counter electrode to the working electrode (rebar) is removed by using the transmission line model. A calculation procedure for estimating Tafel slopes:has also been suggested for precise estimation of the Stem-Geary constant. The utility of the arrangement and the experimental procedure suggested for in-situ corrosion rate measurement is demonstrated through a carefully planned experimental scheme.
rate, of rebrrr embedded in concrete through a linear polarisation technique is described. It incorporates a simple experimental method being suggested for determination of the ohmic resistance of concrete, which enables the ohmic drop to be eliminated mathematically from the polarisation data. The error due to nonuniform
distribution of the applied electric signal through a small size counter electrode to the working electrode (rebar) is removed by using the transmission line model. A calculation procedure for estimating Tafel slopes:has also been suggested for precise estimation of the Stem-Geary constant. The utility of the arrangement and the experimental procedure suggested for in-situ corrosion rate measurement is demonstrated through a carefully planned experimental scheme.
Index terms:
Discipline(s):
in-situ
Subject(s):
corrosion current density; ohmic resistance of concrete; polarisation data; electrode (rebar); transmission line model
Method/Approach:
Coverage:
Publisher:
Contributors:
Source:
Language:
en
Relation:
Type:
Article
Format:
674856 bytes
application/pdf
Copyright Information:
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