Corrosion Rate Measurement

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Corrosion Rate Measurement

• Resistivity Test
• developed for insitu testing
• empirical criteria developed relating resistivity
  to corrosion rate
• extensive field data available
• Polarization Resistance
• Relatively new test
• Relationship to corrosion poor

2
Liner Polarisation
3
-100
0
-200
-100
-300
Ecorr (mV Ag/AgCl)
Ecorr (mV Cu/CuSO4)
-200
-400
-300
-500
1/12/98
1/6/99
1/12/99
31/5/00
30/11/00
1/6/01
30/11/01
1/6/02
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