State of Technology Report for Force Main Rehabilitation, Final ...

Technology/Method CIPP/Pull in Place/UV Cured
• measurement of initial ring stiffness
• 3-point bending test (flexural modulus and strength)
• barcol hardness
• residual styrene content
During installation, the more important QC requirements are:
• installation pressure diagram
• curing speed diagram
• number of UV-light used
• temperature diagram
After installation, the more important QC requirements are:
• impermeability test
• wall thickness
• measurement of the initial ring stiffness
• 3-point bending test
• measurement of the resin content (loss on ignition)
• Residual styrene content
• CCTV of liner for visual defects
IV. Operation and Maintenance Requirements
O&M Needs None
Repair Requirements Use standard methods for GRP-polyester pipes/products
for Rehabilitated
Sections
V. Costs
Key Cost Factors Totally trenchless method, no pits needed up to installation of 36 inches
(depending on manhole cover size). Costs mainly driven by wall thickness
(according to static needs) and diameter of pipe. By-pass pumping time and cost
is limited due to fast installation procedure. Mobilization and site setup reduced
because of small footprint, liner is shipped to site ready for use, and customized
equipment, opening of lateral completely possible directly after installation.
Case Study Costs No project costs available from BKP.
VI. Data Sources
References www.bkp-berolina.de, BKP-Berolina brochure (no date), IKT Liner Report 2007
A-48