This master should be used by designers working on Port of Portland construction projects and by designers working for PDX
tenants (“Tenants”). Usage notes highlight a few specific editing choices, however the entire section should be evaluated and
edited to fit specific project needs.
SECTION 065113 - PLASTIC STRUCTURAL LUMBER
PART 1 - GENERAL
1.1
DESCRIPTION
A.
1.2
This section describes the fabrication and installation of plastic lumber used for chocks between
fender piles.
RELATED WORK SPECIFIED ELSEWHERE
A.
1.3
Section 355914, Marine Fenders
REFERENCES
A.
1.4
ASTM: American Society for Testing and Materials
1.
ASTM A153: Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel
Hardware
2.
ASTM A307: Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod
60 000 PSI Tensile Strength
3.
ASTM D570: Standard Test Method for Water Absorption of Plastics
4.
ASTM D638: Standard Test Method for Tensile Properties of Plastics
5.
ASTM D695: Standard Test Method for Compressive Properties of Rigid Plastics
6.
ASTM D792: Standard Test Methods for Density and Specific Gravity (Relative Density)
of Plastics by Displacement
7.
ASTM D4329: Standard Practice for Fluorescent UV Exposure of Plastics
SUBMITTALS
A.
Submit the following:
1.
Manufacturer’s catalog number of each size.
2.
Shop drawings showing length, width, and depth of plastic lumber, and bolt hole and
counter bore sizes and locations.
3.
Delivery Inspection List: Field-inspect and submit a verification list of each member,
indicating the condition of the plastic. Do not incorporate materials damaged in transport
from plant to site.
4.
Plastic lumber certificates.
5.
Lumber Records: Submit records within 7 days after substantial completion.
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1.5
DELIVERY, STORAGE, AND HANDLING
A.
The Contractor shall inspect each member, upon delivery, for surface damage, cracks,
blemishes, scarring, and straightness. The condition of each member shall be recorded and the
delivery inspection report shall be submitted to the Port.
B.
Protect lumber from damage and handle without dropping, breaking, bruising, or penetrating
outer surface with tools. Do not use cant hooks, dogs, or pike-poles.
C.
Close-stack plastic lumber in storage to prevent from falling and becoming damaged. Store
lumber above the ground on blocking which is shaped or padded and prevent scarring or
sagging. Storage racks shall be arranged to permit air circulation. Lumber shall be lowered to
dunnage with crane or fork lift. Lumber shall not be rolled off tines of forklift.
PART 2 - PRODUCTS
2.1
PLASTIC LUMBER
A.
Provide composite plastic lumber manufactured as specified. All plastic lumber shall be the
product of a single manufacturer. Lumber shall be full size and in one piece. Splices are not
allowed. Lumber shall be solid and homogenous throughout, without uncured material, air
voids, pockets, segregated raw material, splits, cracks or fusion lines, crooks, twists, warps, or
sweeps. All plastic lumber shall be delivered to the work site complete and ready to install.
B.
Plastic shall be a mixture of one or more of the following recycled post-consumer or postindustrial thermoplastics:
high density polyethylene, polypropylene and low density
polyethylene with a minimum of 4.0 percent (by weight) carbon black. The term “recycled”
means materials which have been collected or recovered from solid waste and reprocessed to
become a source of raw materials, as opposed to virgin raw materials. No used or rebuilt
structural elements shall be used in the fabrication of the plastic lumber.
C.
The minimum properties of the plastic shall be as follows:
Density
(ASTM D792)
51.5 lbs./cu.ft. minimum
Specific Gravity
0.83 minimum
Modulus of Elasticity
45,000 psi minimum
Compressive Strength
(ASTM D695)
1,750 psi minimum
Compressive Modulus
45,000 psi
Ultimate Tensile Strength
(ASTM D638)
500 psi minimum
Max Yield Stress in Bending
Fb=850 psi
Water Absorption
Less than 3 percent weight increase in
PLASTIC STRUCTURAL LUMBER
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D.
2.2
(ASTM D570)
24 hours
Ultraviolet
(ASTM D4329 B Lamp)
No more than 10 percent change in Shore D
durometer hardness after 500 hours exposure
Acceptable Manufacturer:
substitutions.
Seaward, a division of Trelleborg Engineered Products, no
HARDWARE
A.
Fender head bolts as manufactured by Portland Bolt Co., or equal.
B.
Washers: No. 10 malleable iron washers, western pattern.
C.
Nuts: Standard square.
D.
All bolts, washers, and nuts shall be galvanized in accordance with ASTM A153.
2.3
QUALITY CONTROL
A.
Plant Inspection: The Port reserves the right to perform plant inspection of the plastic lumber
manufacturing process. Provide the Port with a minimum 2-week advance notice, indicating the
date manufacturing is to start and tests that are to be conducted. Allow the Port unlimited
access to the plant and inspection privileges for each facet of the manufacturing process.
B.
Curing: The plastic lumber shall cure at the plant a minimum of 2 weeks prior to shipment to
the site.
PART 3 - EXECUTION
3.1
FIELD TREATMENT
A.
3.2
Field-treat cuts, bevels, notches, holes, refacing, and abrasions made in the field in accordance
with the manufacturer’s instructions.
FIELD QUALITY CONTROL
A.
When inspections result in product rejection, the Contractor shall promptly segregate and
remove the rejected material from the premises and replace the material at no additional cost to
the Port.
B.
Each member shall be measured for straightness prior to installation. The line shall lie entirely
within the body of the lumber. Lumber not meeting these criteria shall be rejected.
C.
Each reinforced member shall be inspected for cracks prior to installation. Prior to final
acceptance, each reinforced member shall again be inspected for cracks. Cracking of the
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lumber shall be cause for rejection. The Contractor shall be responsible for all costs incurred to
replace the rejected plastic members.
3.3
HOLES
A.
All holes and counter bores for fender bolt heads shall be drilled true and straight and shall
match the holes in the steel wale. Location of holes shall not be greater than +/-1/4 inch from
specified locations.
B.
Bolt holes shall not exceed bolt diameter plus 1/16 inch.
3.4
FRAMING
A.
Install to match existing configuration.
B.
Make all framing true and exact. Install chocks with fender head ASTM A307 galvanized bolts,
malleable iron washers, and nuts. Chocks shall fit tight against the fender piles to prevent
fender piles from movement, and fit flush to the steel wale. Counter bore all holes for bolt
heads and securely bolt. Use 3/4-inch diameter dime head galvanized bolts to attach chocks to
steel wale.
C.
Where bolts are used for fastening plastic to steel, pull the members tightly together when they
are installed. All bolts shall be tight prior to final acceptance. Provide all bolts with sufficient
additional threads to permit at least 1/2 inch per foot thickness of timber for future retightening.
D.
Accurately cut and frame all lumber and timber so that the joints will have a tight fit over the
entire contact surfaces. No shimming will be permitted in making joints, nor will open joints be
accepted.
1.
Members shall be in tight with full contact.
END OF SECTION 065113
PLASTIC STRUCTURAL LUMBER
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