Page 85 - Trenchless Technology Piping Installation and Inspection

Extension of Service Life of Existing Pipe Yes Yes Yes Yes Marginal Yes Yes

Inadequate Hydraulic Capacity Marginal No Marginal Marginal No No Yes

Structural Problems Yes Yes No Yes Marginal Yes Yes

Inflow, Infiltration, & Exfiltration Yes Yes Yes Yes Yes Yes Yes a Marginal means special preparation (such as a point repair) may be required before installation of the renewal/replacement method and/or the renewal/replacement solution may be effective dependent on the specific product (manufac

Cracks/ Holes Yes Yes Yes Yes Marginal Yes Yes

Corrosion Yes Yes Yes Yes Yes Yes Yes Applications of Renewal/Replacement Methods a

Joint Problems Marginal Marginal Marginal Marginal No Marginal Yes

Renewal Method Cured-in-place pipe Sliplining Close-fit pipe Thermoformed pipe Coatings and linings Modified sliplining Trenchless replacement methods TABLE 2.4

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