[as shown] [as determined from pile load tests]. Splices will not be
permitted. Each treated pile shall be branded by the producer, in
accordance with AWPA M6. Pile circumferences shall be as follows:
a.
Bearing Piles: Minimum [butt circumference measured at 0.91 m 3
feet from the butt end] [tip circumference] shall be [[_____] mm
inches] [as indicated].
b.
[Fender] [,] [and] [Cluster] [,] [and] [Dolphin] [_____] Piles:
Minimum butt circumference measured at 0.91 m 3 feet from the butt
end shall be [[___] mm inches] [_____].
[2.1.1.1
Spliced Piles
Spliced piles will not be accepted unless approved by the Contracting
Officer. The Contractor shall submit the proposed splice design for piles
for approval. Piles may be spliced with steel pipe sleeve or steel bar
connections designed to resist bending, axial tension, and impact forces
due to driving. Pipe sleeves shall have a wall thickness of not less than
6 millimeters 1/4-inch, be not less than 0.91 m 3 feet in length and fit
tightly around the ends of the abutting pile segment after the ends have
been trimmed sufficiently to preclude the cutting of objectionable shakes
or splintering when the sleeves are driven on the ends. Abutting pile
segments shall be in full contact without the use of fillers or cushions.
]2.1.2
Preservative Treatment
**************************************************************************
NOTE: Select preservative treatment of marine piles
as follows (consult the nearest NAVFAC EFD/EFA
Applied Biologist for specific requirements for
specific locations):
1. In areas where teredo and pholad are present and
limnoria tripunctata is unknown, absent, or not to
be expected (primarily in northern latitudes but
with exception in both northern and southern
latitudes) creosote or creosote-coal tar solution
will provide adequate protection.
2. In areas where teredo and limnoria tripunctata
attack is expected and pholad attack is not, either
dual treatment of arsenical salt (ACA, ACZA, CCA)
and creosote or creosote-coal tar solution, or an
arsenical salt (ACA, ACZA, CCA) with a minimum net
retention of 40 kilograms per cubic meter (2.50 pcf)
is recommended.
3. In areas where sphaeroma terebrans is present or
where limnoria tripunctata and pholad attack is
expected, dual treatment of arsenical salt (ACA,
ACZA, CCA) and creosote or creosote-coal tar
solution, is recommended.
4. In areas where limnoria, teredo or pholads are
expected or known, pressure treated piles may be
further protected by wrapping in plastic coatings.
Load bearing piles not subject to excessive abrasion
or severe impacts are particularly suited for this
SECTION 02461
Page 15
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