Page 89 - Trenchless Technology Piping Installation and Inspection

Applications Gravity pipelines Pressure pipelines Gravity and pressure pipelines Gravity pipelines Gravity Gravity Gravity Gravity Gravity and pressure pipelines Gravity and pressure pipelines Gravity and pressure pipelines

Liner Material Close-Fit Pipe HDPE, MDPE HDPE, MDPE Thermoformed Pipe HDPE, PVC Lateral Renewal Any Point Source Repair or Localized Repair Epoxy resins/cement mortar Chemical gel grouts, cement-based grouts Special sleeves Fiberglass, polyester, etc. Trenchless Replacement Methods HDPE, PVC, DI, GRP

Approx Inst. Length (ft) 1000 1000 500–1500 100 N/A N/A N/A 50 1500 300 500 Main Characteristics of Trenchless Renewal and Replacement Methods (Continued)

Diameter Range (in.) 3–63 3–63 4–24 4–8 8–30 N/A 4–24 4–48 4–48 Up to 36 Up to 24

Method Close-fit pipe structural Close-fit pipe AWWA class III or class IV (depends on floor pressure) Thermoformed pipe Lateral renewal Robotics Grouting Internal seal Point CIPP Pipe bursting Pipe removal Pipe extraction TABLE 2.5

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