NOTE: Earthwork requirements, including bedding,
for pipe trenches and utility structures are covered
in Section 02300 EARTHWORK. The above referenced
section number and title are subject to change. The
specifier should verify the current specification
and revise if different.
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Perform earthwork operations in accordance with Section [_____].
3.1.1.3
Pipe Laying and Jointing
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NOTE: Delete requirement for tongue-and-groove pipe
(concrete pipe) when not allowed for the project.
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Inspect each pipe and fitting before and after installation; replace those
found defective and remove from site. Provide proper facilities for
lowering sections of pipe into trenches. Lay nonpressure pipe with the
bell [or groove] ends in the upgrade direction. Adjust spigots in bells
[and tongues in grooves] to give a uniform space all around. Blocking or
wedging between bells and spigots [or tongues and grooves] will not be
permitted. Replace by one of the proper dimensions, pipe or fittings that
do not allow sufficient space for installation of joint material. At the
end of each work day, close open ends of pipe temporarily with wood blocks
or bulkheads. Provide batterboards not more than 7.50 m 25 feet apart in
trenches for checking and ensuring that pipe invert elevations are as
indicated. Laser beam method may be used in lieu of batterboards for the
same purpose. Branch connections shall be made by use of regular fittings
or solvent cemented saddles as approved. Saddles for ABS and PVC composite
pipe shall conform to Figure 2 of ASTM D 2680; saddles for ABS pipe shall
comply with Table 3 of ASTM D 2751; and saddles for PVC pipe shall conform
to Table 4 of ASTM D 3034.
3.1.1.4
Connections to Existing Lines
Obtain approval from the Contracting Officer before making connection to
existing line. Conduct work so that there is minimum interruption of
service on existing line.
3.1.2
Special Requirements
3.1.2.1
Installation of Cast Iron Soil Piping
Unless otherwise specified, install pipe and fittings in accordance with
paragraph entitled "General Requirements for Installation of Pipelines" of
this section and with the recommendations of the pipe manufacturer. Make
joints with the rubber gaskets specified for cast iron soil pipe joints and
assemble in accordance with the recommendations of the pipe manufacturer.
3.1.2.2
Installation of Clay Piping
Install pipe and fittings in accordance with paragraph entitled "General
Requirements for Installation of Pipelines" of this section and with the
requirements of ASTM C 12 for pipe laying. Make joints with a compression
joint material specified for clay pipe joints and assemble in accordance
with the recommendations of the manufacturer of the pipe.
SECTION 02531
Page 30
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