b.
Type [IA] [IR] [IIA] [IIR] pipe with helical corrugations.
2.1.4.1
Aluminum Fully Bituminous Coated
Bituminous coating shall conform to ASTM A 849 Type [_____]. Piping shall
conform to AASHTO M 190 Type A and ASTM B 745/B 745M corrugated aluminum
alloy pipe of either:
a.
Type [I] [II] pipe with [annular] [helical] corrugations.
b.
Type [IA] [IR] [IIA] [IIR] pipe with helical corrugations.
2.1.4.2
Aluminum Fully Bituminous Coated, Part Paved
Bituminous coating shall conform to ASTM A 849 Type [_____]. Piping shall
conform to AASHTO M 190 Type C and ASTM B 745/B 745M corrugated aluminum
alloy pipe of either:
a.
Type [I] [II] pipe with [annular] [helical] corrugations.
b.
Type [IR] [IIR] pipe with helical corrugations.
2.1.5
Structural Plate, Steel Pipe, Pipe Arches and Arches
**************************************************************************
NOTE: Coordinate with paragraph Corrugated Steel
Pipe.
This paragraph includes options for providing a
protective coating on the structural plate pipe.
The designer will delete these options when
protective coating is not a part of the project
requirements. When protective coating on the
structural-plate pipe is a project requirement, the
designer will select the applicable option. Metal
pipe manufacturers state that it is impracticable in
initial construction to provide a permanent paved
invert of bituminous material in structural-plate
corrugated metal pipe.
**************************************************************************
Assembled with galvanized steel nuts and bolts, from galvanized corrugated
steel plates conforming to AASHTO M 167. Pipe coating, when required,
shall conform to the requirements of [AASHTO M 190 Type A] [AASHTO M 243].
Thickness of plates shall be as indicated.
2.1.6
Structural Plate, Aluminum Pipe, Pipe Arches and Arches
**************************************************************************
NOTE: Coordinate with paragraph Corrugated Steel
Pipe and paragraph Structural Plate, Steel Pipe,
Pipe Arches and Arches.
**************************************************************************
Assembled with either aluminum alloy, aluminum coated steel, stainless
steel or zinc coated steel nuts and bolts. Nuts and bolts, and aluminum
alloy plates shall conform to AASHTO M 219. Pipe coating, when required,
shall conform to the requirements of [AASHTO M 190, Type A] [AASHTO M 243].
Thickness of plates shall be as indicated.
SECTION 02630
Page 19
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