2.3.8.5
Smooth Wall PE Plastic Pipe
Pipe shall be joined using butt fusion method as recommended by the pipe
manufacturer.
2.3.8.6
Corrugated PE Plastic Pipe
Water tight joints shall be made using a PVC or PE coupling and rubber
gaskets as recommended by the pipe manufacturer. Rubber gaskets shall
conform to ASTM F 477. Soil tight joints shall conform to the requirements
in AASHTO HB-17, Division II, Section 26.4.2.4. (e) for soil tightness and
shall be as recommended by the pipe manufacturer.
2.3.8.7
Profile Wall PE Plastic Pipe
Joints shall be gasketed or thermal weld type with integral bell in
accordance with ASTM F 894.
2.3.8.8
Ductile Iron Pipe
Couplings and fittings shall be as recommended by the pipe manufacturer.
2.4
STEEL LADDER
Steel ladder shall be provided where the depth of the manhole exceeds 3.66
m 12 feet. These ladders shall be not less than 406 mm 16 inches in
width, with 19 mm 3/4 inch diameter rungs spaced 305 mm 12 inches apart.
The two stringers shall be a minimum 10 mm 3/8 inch thick and 63 mm 2-1/2
inches wide. Ladders and inserts shall be galvanized after fabrication in
conformance with ASTM A 123/A 123M.
2.5
DOWNSPOUT BOOTS
Boots used to connect exterior downspouts to the storm-drainage system
shall be of gray cast iron conforming to ASTM A 48/A 48M, Class 30B or 35B.
Shape and size shall be as indicated.
2.6
RESILIENT CONNECTORS
**************************************************************************
NOTE: Delete the requirement for resilient
connectors when a watertight connection between pipe
and manholes and inlets is not required.
**************************************************************************
Flexible, watertight connectors used for connecting pipe to manholes and
inlets shall conform to ASTM C 923M ASTM C 923.
2.7
HYDROSTATIC TEST ON WATERTIGHT JOINTS
**************************************************************************
NOTE: When the quantity of pipe required for a
project is so small that the provisions for testing
and certification of watertightness of joints
appears to be economically unfeasible, such
provisions should be deleted.
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SECTION 02630
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