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Course Overview (Online Registration) |
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This corrosion short course can be taken as in-house training course, online course and distance learning course worldwide. It can also be customized to meet the specific needs of your organization. |
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| Course Outline | |||
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1.
Corrosion and concrete durability 1.1 Impact of corrosion on society 1.2 Factors influencing concrete durability 2. Terminology and conventions 2.1 corrosion, pH, potential, reference electrode, potential-pH diagram 2.2 passivation, passive rebar, depassivation, anode, cathode, cathodic protection, galvanizing, carbonation, etc. 3. Why & How does rebar corrode in concrete? 3.1
corrosion of steel in aqueous environment 4.1 concrete quality, porosity, permeability, depth of cover, water/cement ratio, chloride content 4.2 patching practices 4.3 membranes and sealers 4.4 corrosion inhibitors 4.5 epoxy coating 4.6 galvanizing (zinc coating) 4.7 cathodic protection: principles of cathodic protection, standards, criteria of protection, design of cathodic protection systems, installation practices, operation and maintenance, testing and monitoring 5. Surveying and diagnosing 5.1 Introduction: the need for survey and diagnosis 5.2 Non-destructive structural surveys 5.2.1 Visual and physical appraisal 5.2.2 Resistivity mapping: principles and data interpretation 5.2.3 ASTM C876 Half-Cell potential survey/mapping: principles and data interpretation 5.2.4 Electrochemical techniques for corrosion rate measurements: LPR, EIS, principles and data inpterpretation 5.2.5 Determining the remaining rebar diameter 5.2.6 Determining rebar condition: passive or depassivated, polarization measurements 5.3 Depth of carbonation 5.4 Chloride contents 6. Testing and Monitoring 6.1 The Need for Corrosion Testing and Monitoring in Concrete Structures 6.1.1 Assessment of the Extent of Corrosion Damage 6.1.2 Determing the Rate of Corrosion Damage 6.1.3 Early Warning -Monitoring the Rate of Corrosion Damage 6.1.4 Evaluating the Effectiveness of Repair/Rehabilitation 6.2 The Nature of Corrosion Process in Concrete Structures 6.2.1 Physical Changes Due to Corrosion 6.2.2 Chemical Changes Due to Corrosion 6.2.3 Corrosion Rate and Current Density 6.3 Indirect Methods for Corrosion Testing and Monitoring 6.3.1 Depth of carbonation 6.3.2 Depth of chloride penetration 6.3.3 Electrical resistance (ER probe) 6.3.4 Concrete resistivity 6.3.5 Half-cell potential mapping (ASTM standard C876) 6.3.6 pH, Temperature 6.3.7 Moisture 6.4 Direct Methods for Corrosion Testing and Monitoring 6.4.1 Linear polarisation resistance measurement 6.4.2 Potentiodynamic polarization 6.4.3 AC Impedance measurement 6.4.4 Electrochemical noise measurement 6.5 Design of Corrosion Sensors in Concrete Structures 6.5.1 Overview of sensor designs 6.5.2 Interfaces with sensors 6.5.3 Types of sensors 6.5.4 Principles of LPR-based sensors 6.5.5 Principles of ZRA-based sensors 6.5.6 Advantages and limitations 6.5.7 Monitoring system and components 6.5.8 The new generation of sensors for early warning and life prediction 6.5.9 Cost considerations 7. Repair and Rehabilitation 7.1 Corrosion and concrete durability 7.2 Factors influencing corrosion of reinforcement in concrete structures 7.3 Conventional methods of concrete repair/rehabilitation 7.3.1 patch repair and the incipient anode effect 7.3.2 membranes and sealers 7.3.3 corrosion inhibitors 7.3.4 epoxy coating 7.3.5 galvanizing 7.4 Innovative Cathodic Protection Systems for Concrete Repair and Rehabilitation 7.4.1 Principles of cathodic protection 7.4.2 Sacrificial anode CP 7.4.3 Pressure-sensitive Zinc-Hydrogel anode 7.4.4 Snap-on zinc mesh anode CP system 7.4.5 Impressed current CP 7.4.6 Anode design 7.4.7 Electrodes selection 7.4.8 Installation 7.4.9 Life expectancy and calculations 7.4.10 Case study 7.4.11 Applications 7.5 Chloride Extraction For Concrete Repair and Rehabilitation 7.5.1 Principles of chloride extraction 7.5.2 System setup and operating parameters 7.5.3 Assessment of effectiveness 7.5.4 Applications 7.6 Electrochemical Realkalisation For Concrete Repair and Rehabilitation 7.6.1 Principles of electrochemical realkalisation 7.6.2 System setup and operating parameters 7.6.3 Assessment of effectiveness 7.6.4 Applications 7.7 Conductive Concrete 7.7.1 The nature of conductive concrete 7.7.2 Conductive concrete in cathodic protection 7.7.3 Case studies 7.7.4 Applications 7.8 Stainless Steels and Alloys Reinforcements 7.8.1 The fundamental difference between black rebar and stainless steel rebar 7.8.2 Type of stainless steels and alloys 7.8.3 Mechanical properties of stainless steels and alloys 7.8.4 Corrosion resistance of stainless steels and alloys 7.8.5 Cost comparison 7.8.6 Case studies 7.8.7 Applications 7.9 Ranking Of The Emerging Technologies For Corrosion Control In Concrete Structures 7.10 Techniques to monitor the effectiveness of repair/rehab strategies |
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