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ASTM C118-11

Заменен
Standard Specification for Concrete Pipe for Irrigation or Drainage — 4 стр.
Реферат

This specification covers nonreinforced concrete pipe to be used for the conveyance of irrigation water with working pressures, including hydraulic transients and for use in drainage. The concrete shall consist of cementitious materials, minerals, aggregates, and water. Cement shall conform to the requirements for Portland cement or shall be Portland blast-furnace slag cement, or slag modified Portland cement, or Portland-pozzolan cement conforming to the requirements except that the pozzolan constituent in the Type IP Portland-pozzolan cement shall be fly ash. The combination of cementitious materials used in the concrete shall be one of the following: Portland cement only, Portland blast furnace slag cement only, slag modified portland cement only, portland pozzolan cement only, a combination of Portland cement and fly ash, a combination of portland cement and ground-granulated blast-furnace slag or a combination of fly ash and ground granulated blast furnace slag. The specimens shall undergo external load test, absorption test and hydrostatic test. The material shall also conform to the required internal diameter and wall thickness.

Область применения

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 A complete SI companion to Specification C118 has been developedC118M; therefore, no SI equivalents are presented in this specification.

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, in.Thickness
of Wall,
T, in.Working
Pressure,B
ftMinimum Internal Hydrostatic Test Pressure, psiMinimum
Three-Edge-Bearing
Load, lbf/linear ft 67/830501300 813050 1350 10 11/830501400 12 1¼25451500 14 13/825451600 15 1½25451650 16 1½25451700 18 1¾25451800 20 225401850 21 21/825401900 24 2¼25402000

A For hydrostatic test requirements, refer to 10.5.

B Higher working pressures are not prohibited up to a maximum of 40 ft for 6 through 8-in. diameters, 35 ft for 10 through 12-in. diameters, and 30 ft. for 14-in. through 24-in. diameters. In these cases, the strength of the pipe shall be increased to give a minimum of at least four times the design working pressure when tested as specified in 10.5.

Сборник ASTM
04.05 Chemical–Resistant Nonmetallic Materials; Vitrified Clay Pipe; Concrete Pipe; Fiber-Reinforced Cement Products; Mortars and Grouts; Masonry; Precast Concrete / Химически устойчивые неметаллические материалы; Глазированные керамические трубы; Трубы бетонные; изделия из фиброцемента; Известковые цементные растворы; Монолитный бетон; Сборный бетон
Тематика
Masonry