Global Corrosion Protection for Parking Structures: Long-Term Durability by Design

Global Corrosion Protection for Parking Structures: Long-Term Durability by Design Across the globe, aging parking structures built in past decades are now facing corrosion-driven deterioration from exposure to chlorides, carbonation, and environmental stressors. Achieving true durability, means moving beyond surface-level repairs, to a holistic, global protection strategy that addresses corrosion at its source. This session will demonstrate how to plan and implement comprehensive global repair and protection strategies for existing parking structures. We’ll explore proven approaches to corrosion mitigation and barrier protection for existing structures, supported by real-world case studies and field performance data Participants will walk away with practical examples and case studies to understand how adopting a global repair philosophy will deliver sustainable, long-term performance. Timestamps: 0:00 Introduction 3:18 Presentation Outline 5:34 Types of Evaluation Techniques 5:59 How to Perform a Visual Inspection 7:20 Distress Mechanisms to Look for 10:09 What is Freeze-Thaw Deterioration? 11:57 What is Alkali Silica Reaction (ASR)? 14:00 What is Pyrrhotite (Iron Sulfide Oxidation Reaction)? 15:03 How Does Fire Play a Role in Concrete Deterioration? 16:56 Fire Effects on Concrete 17:37 What Causes Corrosion in Concrete? 19:10 Explaining the Electrochemical Reaction that Causes Corrosion 21:56 Electrical Diagrams with and without Cathodic Protection 24:47 How Construction Defects Contribute to Concrete Deterioration 26:38 Targeted Discrete Anode Application 29:54 Targeted Galvanic Anode Application 31:25 How to Repair Concrete Columns Using Galvanic Ribbon Mesh 32:40 Types of Global Cathodic Protection Systems for Parking Garages 32:47 What is Mixed Metal Oxide Coated Titanium Overlay? 36:58 Example of a Zone Wiring Layout 37:22 Example of Soffit Wiring Detail for Waffle Slab 38:04 What is a Slotted MMO Ribbon ICCP System? 39:58 What is Metallizing/Arc Spray? 42:52 What is Conductive Coating? 46:04 How do Galvanic Encasement Systems Work? 48:46 Precast Prestressed Structures 49:28 Post-Tensioned Structures 52:54 Summary 53:11 Beginning of Question Period 53:30 Which is better: slotted MMO ribbon systems or discrete anode systems? 55:27 Is aggregate screening alone the best method to test for ASR? 58:28 What is the service life of inserted anodes and how many studs can each anode protect? 1:00:28 What factors impact the lifespan of an anode? 1:06:18 Closing