Cincinnati, Ohio

Back Municipal Consulting and Municipal & Contractor Sealing Products

Large Diameter Geopolymer/ Cementitious Lining

This session focuses on large–diameter pipe rehabilitation using cementitious and geopolymer materials as an alternative to CIPP. We’ll look at how these solutions work, where they fit best, and how to design and install them for long-term performance.

Who Should Attend?

  • Municipal and utility inspectors
  • Rehabilitation contractors and field supervisors
  • Municipal, consulting, and design engineers
  • Utility managers and public works professionals

Why Attend?

  • Limitations:
    • When cementitious or geopolymer linings aren’t ideal
    • Structural vs. non-structural cases
  • Challenges
    • Access, confined space, and safety in big pipes
    • Flow control, bypass, and environmental factors
  • Installation Techniques
    • Spray, spin-cast, and trowel methods
    • Single vs. multi-pass applications and thickness control
    • Geopolymer vs. cementitious key differences
    • Strength, chemical resistance, and bonding
  • Specifications
    • Thickness design for performance
    • Key ASTM/AWWA standards
  • Testing
    • Field QA/QC: adhesion, thickness, and cores
    • Lab verification and long-term monitoring

Tim Back, P.E.

Tim Back brings more than 32 years of experience in the trenchless technology industry and is the owner of Back Municipal Consulting, LLC. A recognized expert in manhole rehabilitation, serves as a current ASTM Sub Committee officer for F1767 and participates in WEF, AWWA, NASTT, ASTM, ASSE and ASCE. Tim has trained over 3,000 industry professionals in trenchless technology. Developer of a patented manhole rehabilitation product and contributor to the Trenchless Resource Center.

Drew O'Connor

  • Vice President of MCSP
  • 14 year of experience in underground rehabilitation

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