3.4.1.6
Plastic Sealing Compound Joints for Tongue-and-Grooved Pipe
Sealing compounds shall follow the recommendation of the particular
manufacturer in regard to special installation requirements. Surfaces to
receive lubricants, primers, or adhesives shall be dry and clean. Sealing
compounds shall be affixed to the pipe not more than 3 hours prior to
installation of the pipe, and shall be protected from the sun, blowing
dust, and other deleterious agents at all times. Sealing compounds shall
be inspected before installation of the pipe, and any loose or improperly
affixed sealing compound shall be removed and replaced. The pipe shall be
aligned with the previously installed pipe, and the joint pulled together.
If, while making the joint with mastic-type sealant, a slight protrusion of
the material is not visible along the entire inner and outer circumference
of the joint when the joint is pulled up, the pipe shall be removed and the
joint remade. After the joint is made, all inner protrusions shall be cut
off flush with the inner surface of the pipe. If nonmastic-type sealant
material is used, the "Squeeze-Out" requirement above will be waived.
3.4.1.7
Flexible Watertight Joints
Gaskets and jointing materials shall be as recommended by the particular
manufacturer in regard to use of lubricants, cements, adhesives, and other
special installation requirements. Surfaces to receive lubricants,
cements, or adhesives shall be clean and dry. Gaskets and jointing
materials shall be affixed to the pipe not more than 24 hours prior to the
installation of the pipe, and shall be protected from the sun, blowing
dust, and other deleterious agents at all times. Gaskets and jointing
materials shall be inspected before installing the pipe; any loose or
improperly affixed gaskets and jointing materials shall be removed and
replaced. The pipe shall be aligned with the previously installed pipe,
and the joint pushed home. If, while the joint is being made the gasket
becomes visibly dislocated the pipe shall be removed and the joint remade.
3.4.1.8
External Sealing Band Joint for Noncircular Pipe
Surfaces to receive sealing bands shall be dry and clean. Bands shall be
installed in accordance with manufacturer's recommendations.
3.4.2
Corrugated Metal Pipe
3.4.2.1
Field Joints
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NOTE: Delete this paragraph where watertightness is
essential.
In the text below, delete bracketed sentence,
regarding filling of annular space, except when pipe
750 mm (30 inches) in diameter and larger is
included in the project. Delete reference to pipe
size except when necessary to differentiate from
corrugated metal pipe of less than 750 mm (30 inch)
diameter which is also included in the project.
**************************************************************************
Transverse field joints shall be designed so that the successive connection
of pipe sections will form a continuous line free of appreciable
irregularities in the flow line. In addition, the joints shall meet the
general performance requirements described in ASTM A 798/A 798M. Suitable
SECTION 02630
Page 35
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