b.
Facing Aggregates: ASTM C 33 (less gradation), clean, hard,
durable, inert, and free of staining and deleterious materials; as
required to match approved samples.
c.
Color: ASTM C 979, pure, non-fading mineral oxides which do not
impair strength of GFRC; designed and mixed to provide color
matching approved samples; maximum 10 percent cement weight.
d.
Applied Finishes: ASTM D 4060 waterborne crosslinked acrylic 49.5
+/-2 percent solids by weight providing 1000 cycles per 0.0254 mm
1000 cycles per 0.001 inch resistance to abrasion.
][2.8.2
Precast Concrete/Cast Stone Planters
Provide reinforced precast concrete planters [waste receptacles] [ash
receptacles] consisting of a mixture of cement, aggregates, and mineral
colors suitable for exterior use as located on the drawings. Provide
manufacturer's standard exposed aggregate or sandblast finish (with clear
acrylic coating) as selected.
a.
Portland Cement:
ASTM C 150, gray, Type I.
b.
Aggregate:
ASTM C 33, 2.36 mm No. 8 crushed limestone and sand.
c.
Galvanized Steel Mesh:
ASTM A 185.
d.
Integral Color:
ASTM C 979, pure mineral oxide, limeproof and
non-fading.
e.
Concrete Strength: 30 MPa 4000 psi minimum compressive strength at
28 days.
f.
Admixture:
ASTM C 260 for air-entraining.
][2.8.3
Wood Planters
Provide manufacturer's standard wood planter [waste receptacle] [ash
receptacles] fabricated of 19 mm 3/4 inch thick tongue and grooved wood
slats permanently bonded with fiberglass interior shell. Provide wood top
trim for square planters and fiberglass top trim for round planters.
Freestanding planters shall support designated plant material to reduce
wood deterioration from contact with soil and moisture; wood materials
shall be provided only as a decorative exterior application to other types
of planters.
a.
Wood Species: [Marine Teak] [Alaska Yellow Cedar] [Clear
All-Heart California Redwood] [Purple Heart] [Ipe] [_____].
b.
Fiberglass: Molded with multiple laminations of glass fiber
impregnated with polyester isophthalic thermosetting resins with a
finish of 0.30-0.38 mm 12-15 mil color impregnated polyester gel
coat.
c.
Metal Frame:
Black color-coated steel frame.
][2.8.4
Wood Planters with Metal Frames
Provide manufacturer's standard wood planter [waste receptacle] [ash
receptacle] with galvanized steel welded frames, and nominal 50 mm two inch
SECTION 02870
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