Municipal Wastewater Collection

Sample Engagements:

Evaluation and Specification of Corrosion Protection Technologies for Wastewater Transmission/Collection Systems

Through many years, CPI has developed expertise in the pros and cons of the following corrosion protection technologies:

  • Prefabricated FRP Pipe, i.e., Hobas Pipe
  • Profile Wall HDPE Pipe, i.e., Spiralite
  • Sliplining with Heavy-Wall HDPE, i.e., Drisco Pipe
  • Anchored HDPE and PVC sheet linings in prefabricated precast concrete pipe, i.e., Bekaplast Acryline and T-Loc
  • Anchored HDPE and PVC sheet linings installed in situ and grouted in place
  • Retrofit/chemically adhered PVC sheet lining systems, such as Linabond's Co-Lining System
  • Anchored PVC sheet linings in epoxy mortar/adhesives, i.e. ArrowLock by Ameron
  • Spray applied epoxy, polyurethane, vinyl ester, and polyurea linings - both shop and field applied (from Polybrid, Raven, Tnemec, Plasite, Sauereisen, et al.)
  • Trowel-applied epoxy, polyester, and vinyl ester mortar-based linings from Tnemec, Plasite, International Paint, General Polymers, Sauereisen, and other manufacturers
  • Calcium Aluminate and Micro Silica Modified Shotcretes (wet or dry) for tunnel linings where H2S concentrations are expected to be relatively low
  • Other Technologies


Service Areas

  • Corrosion and Materials Engineering
    • Corrosion Control/Protection Design
    • Corrosion Analysis and Material Selection Consulting
    • Failure Analysis - Mode and Root Cause Analysis
    • Cathodic Protection System Design and Evaluation
  • Structural and Mechanical Rehabilitation Services
    • Structural Design Engineering
    • Mechanical Design Engineering
    • Condition Assessment Evaluations
    • Structural Evaluation and Analysis
    • Shop and Field QC Inspection and Support
  • Mechanical Integrity and Inspection Design Services
    • Pressure Vessel and Tank Program Development and Implementation
    • Systematic Inspection Design (SID)
    • Risk-Based Inspection
    • Integrity Evaluation and Analysis
    • Fitness-for-Service Evaluations
    • Welding Consulting and Inspection
  • Coatings and Linings Engineering
    • Consulting
    • Failure Analysis
    • Project Management
    • Quality Control and Inspections
  • Project and Quality Management Services
    • Cost Estimating Services for all Construction Disciplines
    • Project Management Services, Including Planning, Scheduling, and Project Controls
    • Quality Control Inspection and Testing Services
    • Quality Assurance Program Development for New and Rehabilitation Construction
    • Quality Assurance Program Auditing and Oversight Services
  • Training Services
    • Alloy Selection for Corrosive Environments
    • Solving Corrosion and Materials Problems for Plant Engineers
    • Welding Essentials for Plant Engineers
    • Brick and Tile-Lined Equipment Inspection and Repair
    • FRP Essentials for Pulp and Paper Mills
    • Concrete Restoration and Protection
    • Quality Assurance for Capital Projects

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