Microbiologically influenced Corrosion (MIC) of construction materials: steel and concrete

Microbe assisted corrosion/detrioration of steel and concrete

Bridges and concrete structures are vulnerable to corrosion particularly microbiologically influenced corrosion (MIC) and/or microbiologically influenced deterioration (MID). MID can affect mechanical integrity of concrete to be lowered in the same way that MIC does to steel where both would lead into premature failure of steel bridges and concrete structures.

Microbiologically influenced corrosion (MIC) via the impact of some micro-organisms such as - but not limited to - bacteria can affect the mechanical integrity of steel structures including steel bridges. The corrosive role of these micro-organisms could be via lowering local pH or establishment of electrochemical cells.   

Microbiologically influenced deterioration (MID) can affect a wide range of non-metals including concrete structures, for instance concrete parts of bridges and wastewater treatment facilities. While mechanisms such as weathering and its effect on concrete are known, less is known about MID-assisted atmospheric deterioration of concrete for instance.

Recognize,  evaluate and prevent MIC and MID

After completing this course you:

  • can assess and differentiate various corrosion mechanisms as per intended structure
  • are able to evaluate MIC/MID and the ways by which they can be treated and/or prevented
  • know the pros and cons of in-market methods to recognize and treat corrosion in general and MIC/MID in particular
  • are able to design better maintenance and operation schedules
  • can categorise the loss and control/prevention of remote-looking accidents or disasters

Intended for
The course is intended for civil engineers, structural engineers, technical design engineers, corrosion engineers, technical inspectors, operation and maintenance professionals, industrial research and development (R&D) professionals, water specialists working with underground pipelines, infrastructure professionals at municipalities, microbiologists and academic researchers.

About the course leader
Reza Javaherdashti holds a double degree in Materials Science and Metallurgical Engineering. Being actively involved in numerous projects, he has more than 20 years of industrial (Root Cause analyst & consultant) and academic (researcher) experience. Dr. Reza is approved instructor by ASME  (USA) and SPE (Society of Petroleum Engineers - USA). In addition, he has more than four thousand hours of highly successfully carried out training industries around the globe about corrosion management and microbial corrosion.
Dr. Reza is currently the CEO of MICCOR in The Netherlands:

Interested in related courses? Also take a look at the course Material selection in structural design, Kunststofcomposieten in bruggen, sluisdeuren en overige constructies or Beoordeling constructieve veiligheid bij verbouw en afkeuren van bestaande constructies.

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  • Information
    The program will be taught in English.
  • Program

    Day 1: A review of fundamentals of Corrosion-Theory of the practice and practice of the theory

    • Introduction to the course and its methodology: System –approach vs. materials-approach
    • The role of corrosion management in getting a “desired” industrial future
    • Technical and non-technical management of corrosion: a brief introduction
    • Economical, ecological and management importance of corrosion
    • Can microbial corrosion be always classified as a subclass of internal corrosion?
    • Theory of corrosion and its relevance to microbial corrosion in pipelines
    • Principles of inhibitors, coating, cathodic protection and anodic protection and their role in integrity management plans

    Day 2: Microbial corrosion & its patterns in integrity management

    • Introduction to definition of MIC, its various names, and its importance
    • Definition of MIC, susceptibility assessment of engineering materials to MIC
    • Classification of bacteria and its engineering importance
    • How can microbial corrosion in different systems be similar? General patterns of MIC
    • Biofilm: a wrong term for a right concept!
    • Biofilm formation mechanism and its electrochemical importance   
    • Treatment and management of MIC
    • Corrosion prediction models and MIC  

    MIC and standards: describing related standards and their applicability

    Day 3: Microbiologically Influenced Deterioration (MID)

    • Microbial deterioration of composites and polymers
    • Tutti model to explain chemical deterioration of concrete
    • MID of concrete
    • Treatment and prevention