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1.1 This specification covers nonreinforced concrete pipe to be used for the conveyance of irrigation water with working pressures, including hydraulic transients, as shown in Table 1 and for use in drainage.

1.2 This specification is the SI counterpart of Specification C118.

Note 1 – This specification is for manufacturing and purchase only and does not include requirements for bedding, backfill, installation, or field repairs. The owner is cautioned that he must correlate field conditions with the characteristics of the pipe specified and provide inspection during installation.

TABLE 1 Standard Dimensions, Working Pressure, and Test Requirements for Standard Concrete Irrigation PipeA

Internal Designated Diameter, mm Thickness
of Wall,
T, mm
Working
Pressure,B
kPa
Minimum Internal Hydrostatic Test Pressure, kPa Minimum Three-Edge-
Bearing Load,
kN/linear m
150 22 90 345 19.0
200 25 90 345 19.5
250 29 90 345 20.5
300 32 75 310 22.0
350 35 75 310 23.5
375 38 75 310 24.0
400 38 75 310 25.0
450 44 75 310 26.5
500 50 75 275 27.0
525 54 75 275 27.5
600 57 75 275 29.0

A For hydrostatic test requirements, refer to 10.5.

B Higher working pressures are not prohibited up to a maximum of 120 kPa for 150 through 200-mm diameters, 105 kPa for 250 through 300-mm diameters, and 90 kPa for 350 through 600-mm diameters. In these cases, the strength of the pipe shall be increased to give a minimum internal hydrostatic test pressure of at least four times the design working pressure when tested as specified in 10.5.

Product Details

Published:
09/01/2011
Number of Pages:
4
File Size:
1 file , 82 KB
Redline File Size:
2 files , 160 KB