crimped, rounded and smoothed.
e. Ash Receptacles: The Contractor shall provide ash receptacles with
a fire-proof metal bowl or screen or sand-filled containers for ash
containment. Ash receptacles shall have a minimum diameter of 200 mm 8
inches; ash containers shall have a fire-proof metal bowl or screen and
shall be easily removable for cleaning.
f. Planter Size: The planter size shall be determined according to the
spacial root requirements at 2/3 maturity size of the designated plant
material, in conformance with Section 02930 EXTERIOR PLANTS.
g. Drainage: Drainage for the planter shall be as follows: a minimum
of one drainage hole in the base of each planter and a minimum 3 mm 1/8
inch space, in 2 locations, between the base of the planter and the
supporting surface.
h. Base: The planter base shall be capable of supporting the weight of
the planter filled with both the designated plant material and fully
saturated soil. The planter shall not crack, overturn, or sink below
the existing grade. Planters shall allow for relocation.
[2.8.1
Glass Fiber Reinforced Concrete (GFRC) Precast
Provide glass fiber reinforced concrete (GFRC) precast [planters] [waste
receptacles] [ash receptacles] at locations indicated on the drawings.
Comply with PCI MNL-117 and PCI MNL-128.
][2.8.1.1
Materials
Provide manufacturer's standard shell thickness of 9 to 16 mm 3/8 to 5/8
inch.
a.
Cement: ASTM C 150, use only one brand and type of cement
throughout the Project.
b.
Glass Fibers: Alkali resistant (AR) glass fibers produced
specifically for use in glass fiber reinforced concrete. Glass
content of GFRC unit to be a minimum of three percent.
c.
Aggregates: Clear silica sand passing 1.18 mm No. 16 sieve;
washed, dried, and free from deleterious materials; provide type
with successful history of use in GFRC and as standard with the
manufacturer.
d.
Compressive Strength:
Minimum 20/25 MPa 3000 psi 28 day strength.
e.
Density:
Approximately 1921 kg/cu. m 120 pcf.
f.
Polymer Admixture:
Manufacturer's standard acrylic thermoplastic
copolymer.
][2.8.1.2
Provide factory finished units with manufacturer's standard texture or
sandblasted finish as selected.
a.
Cement:
White or grey as consistent with final finish.
SECTION 02870
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