1. Cathodic Protection/Corrosion Control

2. Introduction
Review online course content.
Review questions.

3. Workshop Objectives
To provide discussion, demonstrations, and hands-on activities that will enable you to:
Define the corrosion process
Explain the causes of corrosion
Identify types of corrosion.
Define:
Stress Corrosion Cracking (SCC)
Selective Seam Corrosion (SSC) 
List locations to inspect
Identify elements to look for during an inspection
Explain how to handle corroded materials

4. Corrosion The conditions that cause corrosion
Environmental factors contributing to corrosion
Determining the extent of deterioration
“Real world” scenarios - 

5. Stress Corrosion Cracking (SCC) Selective Seam Corrosion (SSC)
Image Retrieved July 2013
Stress corrosion cracking (SCC) -
Selective Seam Corrosion (SSC) - 

6. Corrosion Types Anti corrosion coatings Atmospheric
Localized (pitting or crevices)
Generalized
Galvanic
Microbiological
Graphite
Flow-Assisted
Anti corrosion coatings
Paint
Tape
Insulation

7. Inspections-Locations
Appropriate Inspection Intervals (as required by the Code of Federal Regulations)
Locations to inspect
Above grade
Where soil and air meet
At bolted connections
At pipe supports
In splash zones
Where pipe spans water
Under thermal insulation
Under disbonded coating
At deck penetrations

8. Inspections What to look for during an inspection
Rust
Cracking, flaking or chalking
Thin or rough spots
Discolored or mottled surfaces
Holes, cuts or gouges
Wrinkled or disbonded coating (difficult to detect)
Cracked, chipped, flaking or peeling paint
Determine the extent of deterioration
Local inspection standards
Activity Worksheet #1

9. Sources Occupational Safety and Health Administration (OSHA)
Compressed Gas Association (CGA)
US Department of Transportation (FHWA)
Code of Federal Regulations:
§ External corrosion control: Examination of buried pipeline when exposed.
§ Atmospheric corrosion control: General.
§ Atmospheric corrosion control: Monitoring.
§ Do I have to examine exposed portions of buried pipelines?
§ Which pipelines must I protect against atmospheric corrosion and what coating material may I use?
§ Atmospheric corrosion control: Monitoring. What must I do to monitor atmospheric corrosion control

10. Corrosion Performance Checklist
Complete the Corrosion Performance Checklist
Discuss completed checklists with entire class.

11. Open Discussion
Questions
Comments