PART 3 - EXECUTION
3.1 FIELD QUALITY CONTROL
A. Pipe may be rejected for failure to conform to any of the following:
1.
We WN
Fractures or cracks passing through pipe wall, except single crack not
exceeding 2 inches in length at either end of pipe which could be cut off
and discarded. Pipes within one shipment shall be rejected if defects
exist in more than 5 percent of shipment or delivery.
Cracks sufficient to impair strength, durability or serviceability of pipe.
Defects indicating improper proportioning, mixing, and molding.
Damaged ends, where such damage prevents making satisfactory joint.
Damage due to handling or installation. Scratches and gouges exceeding
five (5) percent of the wall thickness shall be considered excessive, and
may be rejected by OWNER or the CQA Consultant.
B. Acceptance of fittings, stubs or other specifically fabricated pipe sections shall
be based on visual inspection at job site and documentation of conformance to
this Section.
C. Prior to backfilling, CONTRACTOR shall obtain as-built survey
information (location and elevation) for the installed pipe at 50-foot
intervals, any changes in grade, and the location of all installed fittings.
3.2 INSTALLATION
A. — Trench, backfill, and compact in accordance with Specification Section 02200.
B. Heat Fusion of Pipe
1.
2.
Weld in accordance with manufacturer’s recommendation for butt fusion
methods. The pipe manufacturer shall certify fusion operators.
Butt fusion equipment for joining procedures shall be capable of meeting
conditions recommended by pipe manufacturer including, but not limited
to, temperature requirements, alignment, and fusion pressures.
For cleaning pipe ends, solutions such as detergents and solvents, when
required, shall be used in accordance with manufacturer's
recommendations.
Do not bend pipe to greater degree than minimum radius recommended
by manufacturer for type and grade.
Do not subject pipe to strains that will overstress or buckle piping or
impose excessive stress on joints.
Branch saddle fusions shall be joined in accordance with manufacturer's
recommendations and procedures. Branch saddle fusion equipment shall
be of a size to facilitate saddle fusion within the trench.
File No. 3066.09
High-Density Polyethylene Pipe 15210 - 7 of 13 December 2017
