paper shall be applied as part of the hydroseeding operation. Fiber shall
be added at 1,000 pounds, dry weight, per acre 11.2 kg per 100 square meter.
Then add and mix seed and fertilizer to produce a homogeneous slurry.
Seed shall be mixed to ensure broadcasting at the rate of [_____]kilograms
per hectarepounds per 1000 square feet.
When hydraulically sprayed on
the ground, material shall form a blotter like cover impregnated uniformly
with grass seed. Spread with one application with no second application of
mulch.
]3.2.3
Mulching
[3.2.3.1
Hay or Straw Mulch
Hay or straw mulch shall be spread uniformly at the rate of 0.75 metric
tons per hectare 2 tons per acre. Mulch shall be spread by hand,
blower-type mulch spreader, or other approved method. Mulching shall be
started on the windward side of relatively flat areas or on the upper part
of steep slopes, and continued uniformly until the area is covered. The
mulch shall not be bunched or clumped. Sunlight shall not be completely
excluded from penetrating to the ground surface. All areas installed with
seed shall be mulched on the same day as the seeding. Mulch shall be
anchored immediately following spreading.
][3.2.3.2
Mechanical Anchor
Mechanical anchor shall be a V-type-wheel land packer; a scalloped-disk
land packer designed to force mulch into the soil surface; or other
suitable equipment.
][3.2.3.3
Asphalt Adhesive Tackifier
Asphalt adhesive tackifier shall be sprayed at a rate between 666 to 866
liters per hectare 10 to 13 gallons per 1000 square feet. Sunlight shall
not be completely excluded from penetrating to the ground surface.
][3.2.3.4
Non-Asphaltic Tackifier
Hydrophilic colloid shall be applied at the rate recommended by the
manufacturer, using hydraulic equipment suitable for thoroughly mixing with
water. A uniform mixture shall be applied over the area.
][3.2.3.5
Asphalt Adhesive Coated Mulch
Hay or straw mulch may be spread simultaneously with asphalt adhesive
applied at a rate between 666 to 866 liters per hectare 10 to 13 gallons
per 1000 square feet, using power mulch equipment which shall be equipped
with suitable asphalt pump and nozzle. The adhesive-coated mulch shall be
applied evenly over the surface. Sunlight shall not be completely excluded
from penetrating to the ground surface.
][3.2.4
Rolling
**************************************************************************
NOTE: Normally the roller weight should not exceed
134 kg per m 90 pounds per foot of roller width.
Light rolling is needed on newly seeded and sprigged
areas to firm the seed or sprigs into contact with
the soil for optimum germination and growth.
However, excessive soil compaction beyond this
SECTION 02921
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