This standard specifies the requirements for steel cylinder pipes with concrete lining and coating, used for water supply, sewerage, and penstocks. It covers materials, manufacturing, dimensions, tolerances, testing procedures, and marking for pipes with nominal diameters from 200 mm to 3000 mm.
Steel cylinder pipe with concrete lining and coating
Quick Reference Values
Minimum 28-day compressive strength of concrete25 MPa
Minimum cement content for concrete360 kg/m³
Standard effective length of pipe5.5 m
Minimum thickness of concrete coating (for DN > 600 mm)25 mm
Works hydrostatic test pressure factor1.5 times working pressure
Practical Notes
These pipes are very heavy and require specialized handling and lifting equipment to avoid damaging the concrete coating.
The type of joint, typically a spigot and socket with a rubber gasket, is critical and must be specified by the purchaser for ensuring a watertight seal.
Ensure proper curing of both the internal lining and external coating as it is crucial for achieving the required strength and durability.