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Author : Robert Gummow

Robert Gummow

Bob (Robert) Gummow is a Senior Technical Engineer at Corrosion Service Company Ltd. He has been with Corrosion Service since 1962 serving in various capacities, including formerly Vice President Engineering, President and CEO. Bob is a renowned expert in all areas of electrochemical corrosion prevention, having been awarded the NACE Technical Achievement Award (1989, 1992), NACE Brannon Award (2004), Col. Charles C. Cox Award (2013) and most recently NACE Fellow Honor 2016. Bob has a Bachelor’s degree in electrical engineering from the University of Toronto, Canada, he is a NACE certified Corrosion Specialist and a Professional Engineer.

Published : March 29, 2017

The quality of the indirect inspection data is a critical factor in conducting a successful ECDA. It is therefore essential to increase the accuracy of the field data collection, to improve the data processing and to effectively present the results. This paper describes several challenges […]

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Published : March 6, 2016

The conventional understanding of the cathodic protection mechanism is illustrated in the definition of cathodic protection arising from the research of Mears and Brown in 1938. That is, cathodic protection is complete when the corrosion cell cathodes are polarized electronegatively to the open circuit potential […]

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Published : March 11, 2012

Some recent papers contain inaccurate information regarding the validity of the -850 mVcsE current applied criterion, the so-called on-potential criterion. To qualify as a corrosion control criterion the -850 mVcsE value must imply a sound engineering judgment of the corrosion rate. Only the -850 mVcsE […]

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Published : March 11, 2007

The 100mV cathodic polarization criterion is being used more extensively on piping in the oil and gas industry which has prompted a discussion on the limits of its use. This paper summarizes the technical literature on the validity of this criterion with respect to elevated […]

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Published : May 17, 2005

Prestressed concrete cylinder pipe (PCCP) used for water and sewer transmission service is composed of a thin wall steel cylinder, lined on the interior and exterior with cement mortar, and reinforced by prestressing wire either wrapped around the steel cylinder or embedded in the exterior […]

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Published : March 28, 2004

Although cathodically protected pipelines are often connected directly to electrical ground in stations and plants, there is little information on the amount of current required to polarize various grounding materials such as copper, tinned copper, stainless steel, silicon iron, and galvanized steel. This paper presents […]

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Published : February 1, 2001

The impact of telluric current activity on the corrosion control systems on pipelines in northern regions and cold climates is examined. Three specific areas of concern are identified These factors are corrosion of the pipe during positive cycles of the telluric disturbances, accurate measurement of […]

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