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Effects of H2S on Concrete in James Island SC: Cleaning and Restoration Process

This case study examines the impact of hydrogen sulfide (H2S) on concrete structures in a wetwell at James Island, SC. It documents the concrete loss exceeding 1 inch in some areas before cleaning and preparation. The cleaning process utilized a 5000 PSI rotating nozzle, revealing areas of little corrosion along the water line. The study also illustrates the concrete buildback process following the application of 120 mils of Raven 405, demonstrating effective restoration techniques for damaged concrete in harsh environments.

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Effects of H2S on Concrete in James Island SC: Cleaning and Restoration Process

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Presentation Transcript

  1. Case History James Island, SC Effects of H2S on Concrete Wetwell Concrete loss over 1” in places

  2. Before Cleaning & Prep (notice the water line, little corrosion)

  3. After 5000 PSI / 5 GPM Rotating Nozzle Prep (pea gravel color)

  4. After 1/2” Concrete Buildback During Preparation

  5. After application of 120 Mils of Raven 405

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