SYNOPSIS

Concrete reinforced with steel has been common method in civil construction for many years. It is recognised as cheap, high structural strength, mouldability, fire resistance and its imperviousness to external environment, while requiring little or no maintenance. Until the 1950s, it was assumed that when steel encased in the alkaline concrete matrix, neither would suffer from any degradation for the infinite future. This has been proven to be true in several cases, with structures reaching their design lives without any evidence of structural degradation. However, it is now evident that in areas where there is an aggressive atmosphere, the concrete can be damaged or the steel can corrode in a dramatically shorter time period than that specified as a design life.

Various effects, man-made or by nature, have been increasingly causing premature degradation of steel reinforced concrete. Conventional concrete repairs, such as patching and reforming of concrete, often results in re-occurrence of concrete failure over very short period. The corrosion related failures shall be better understood in order for the repair to last as specified.

Cathodic protection, a corrosion protection method, has been recognised as the one of the most effective methods to control corrosion of steel reinforcement inside concrete hence extended life of the structures.

This technical talk covers various factors of reinforced steel corrosion which shorten service life of steel reinforced concrete structures. Basic principal of cathodic protection will be presented and the applications of cathodic protection to control the concrete corrosions will be discussed.


SPEAKER BIODATA

Mr KANG KIM ANG, Graduated with Diploma in Materials Engineering of Tunku Abdul Rahman (TAR) College and MSc. in Corrosion SC and Engineering of University of Manchester.

A Corrosion Specialist and Cathodic Protection Specialist accredited by National Association of Corrosion Engineer (NACE), USA and the Institute of Materials, Malaysia (IMM). A Chartered Engineer registered with Engineering Council, UK.

Over 29 years in Corrosion Control, Cathodic Protection, Pipeline Integrity Inspection by MTM technology, Heavy-duty Coatings, Passive Fire Protection, and Corrosion Inspection in the Oil  & Gas, Marine, Petrochemical, Construction and Industrial Sectors in Malaysia, South East Asia, Middle East and Africa.

Over 8 years in part-time lecturing of Corrosion Engineering subject at higher learning institutions in Malaysia.  Over 22 years as invited trainer for Institute Materials, Malaysia for the cathodic protection training & certification programme. Currently, NACE cathodic protection certifications for CP1 & CP2 since 2014. Over 7 years as invited trainer for Petronas Skill Group 15 for Level 3 Cathodic Protection. Over 4 years as industrial advisory panel member for UTAR/KTAR.

He is currently the Managing Director of CORRTROL Group of companies