This document is part of Standard Specifications -- English Units.

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SECTION 1044

SUBSURFACE DRAINAGE MATERIALS

1044-1 SUBDRAIN FINE AGGREGATE.

The subdrain fine aggregate shall meet the gradation requirements for No. 2S or No. 2MS sand as shown in Table 1005­2.

1044-2 PIPE AND FITTINGS--GENERAL.

Pipe and fittings may be, at the option of the Contractor, either concrete, corrugated steel, bituminized fiber, or corrugated plastic.

1044-3 CONCRETE PIPE AND FITTINGS.

Non perforated concrete pipe and pipe fittings shall meet the requirements of AASHTO M86 for standard strength nonreinforced concrete pipe.

Perforated concrete pipe shall meet the requirements of AASHTO M175 for standard strength perforated nonreinforced concrete underdrainage pipe.

Joint materials shall meet the requirements of Subarticle 1032­1(F).

1044-4 CORRUGATED STEEL PIPE AND FITTINGS.

Non perforated corrugated steel pipe and pipe fittings shall meet the requirements of Subarticle 1032­3(A).

Perforated corrugated steel pipe shall meet the requirements of AASHTO M36.

The corrugated steel pipe shall be fabricated from steel sheets having a minimum thickness of 0.052 inch.

1044-5 POLYVINYL CHLORIDE PLASTIC PIPE.

Polyvinyl chloride plastic pipe shall meet the requirements of ASTM D1785.

1044-6 CORRUGATED PLASTIC PIPE AND FITTINGS.

Corrugated plastic pipe and fittings shall meet the requirements of AASHTO M252 for heavy duty tubing, except that the maximum stretch resistance shall be 10 percent.

1044-7 OUTLET PIPE.

Outlets constructed of PVC Sch. 40 pipe shall meet the requirements of ASTM D 2665. HDPE pipe shall meet the requirements of ASTHTO M­252, Type S.