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Effects of H2S on Concrete Interceptors in Charlotte, NC: A Case History

This case history focuses on the impact of hydrogen sulfide (H2S) on concrete interceptors in Charlotte, NC, revealing significant concrete loss of over 1 inch prior to cleaning and preparation. After employing a 5000 PSI rotating nozzle for cleaning, the restoration involved a concrete buildback with 120 mils of Raven 405. To ensure surface integrity, 10,000 volts holiday testing was conducted to confirm a monolithic, pinhole-free surface after three years of exposure to severe H2S conditions.

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Effects of H2S on Concrete Interceptors in Charlotte, NC: A Case History

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  1. Case History Charlotte, NC Effects of H2S on Concrete Interceptor Concrete loss over 1” inch

  2. Before Cleaning & Prep

  3. After 5000 PSI / 5 GPM Rotating Nozzle Prep

  4. After 1” Concrete Buildback During Preparation

  5. After application of 120 Mils of Raven 405

  6. 10,000 Volts Holiday Testing Insuring Monolithic Pinhole Free Surface

  7. After 3 yrs Very Severe H2s 10,000 Volts Holiday Testing Insuring Monolithic Pinhole Free Surface

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