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SECTION 02074
GEOCOMPOSITE SHEET FOR SUBDRAINAGE SYSTEMS
NOTE ** Note: This section could also be located in
Division 7 as Section 07146 - Integral Geocomposite
Sheet/Protection Board.
NOTE ** This section is based on products manufactured by
Greenstreak Plastic Products Co., Inc. located at
the following address:
NOTE ** St. Louis, MO 63122
NOTE ** Telephone: (314) 225-9400 or (800) 325-9504.
NOTE ** Fax: (314) 225-9854 or (800) 551-5145.
NOTE **
NOTE ** The geocomposite sheet is composed of a core,
through which drainage water is directed, and a
geotextile fabric face, to prevent soil from
clogging the core.
NOTE **
NOTE ** Although this guide specification is proprietary,
it does include reference and performance
standards. GREENSTREAK SHEET DRAIN, SHEET DRAIN
HS, and DECK DRAIN may be specified in this section
or in Division 3 or Division 7. The specifier
should edit this specification to suit the
project's requirements. Selection of the
appropriate product for the project is the
responsibility of the customer.
NOTE **
NOTE ** SECTION 02074 - GEOCOMPOSITE SHEET FOR SUBDRAINAGE,
Copyright 1996, The Architect's Catalog, Inc.
PART 1 GENERAL
1.1 SECTION INCLUDES
NOTE ** Delete applications below not required for project.
Add others as required. This section covers 2
types of sheet for vertical application -- if both
are used edit the list below to indicate which is
to be used in each location.
A. Geocomposite sheet installed in the following locations:
1. Over below-grade vertical walls to relieve
hydrostatic pressure.
2. Over below-grade vertical waterproofed walls to
protect waterproofing membrane from backfill.
3. Over waterproofing under horizontal pedestrian plaza
slabs to drain storm water and protect waterproofing
membrane from paving materials.
4. Over waterproofing in planters to drain water and
protect waterproofing membrane from planting
materials.
5. Under slabs indicated for relief of hydrostatic
pressure.
6. Other locations indicated on drawings.
1.2 RELATED SECTIONS
NOTE ** Delete any sections below not relevant to this
project; add others as required.
A. Section 02300 - Earthwork, for backfilling.
B. Section 02620 - Subdrainage, for drainage piping or tile.
C. Section 07120 - Fluid Applied Waterproofing.
D. Section 07130 - Sheet Waterproofing.
E. Section 07170 - Bentonite Waterproofing.
F. Section 15145 - Plumbing Piping, for roof drains.
1.3 REFERENCES
NOTE ** Delete references from the list below that are not
actually required by the text of the edited
section.
A. ASTM D 1621 - Standard Test Method for Compressive
Properties of Rigid Cellular Plastics.
B. ASTM D 3786 - Standard Test Method for Hydraulic Bursting
Strength of Knitted Goods & Nonwoven Fabrics - Diaphragm
Bursting Strength Tester Method.
C. ASTM D 4491 - Standard Test Method for Water Permeability
of Geotextiles by Permittivity.
D. ASTM D 4632 - Standard Test Method for Breaking Load and
Elongation of Geotextiles.
E. ASTM D 4716 - Standard Test Method for Constant Head
Hydraulic Transmissivity (In-Plane Flow) of Geotextiles
and Geotextile Related Products.
F. ASTM D 4751 - Standard Test Method for Determining
Apparent Opening Size of a Geotextile.
NOTE ** Definitions:
NOTE **
NOTE ** Geotextile: Any permeable textile used with
foundation, soil, rock, or any other geotechnical
material, as an integral part of a man-made
product, structure, or system.
NOTE **
NOTE ** Normal Direction: Direction perpendicular to the
plane of the geotextile.
NOTE **
NOTE ** Permittivity: Volumetric flow rate of water per
unit cross sectional area per unit head under
laminar flow conditions, in the normal direction
through a geotextile.
NOTE **
NOTE ** Permeability: Rate of flow of a liquid under a
differential pressure through a material.
NOTE **
NOTE ** Transmissivity: Flow or amount of liquid water per
foot of material width passing through composite
system at certain maximum soil pressure against
geotextile at defined hydraulic gradient.
1.4 SUBMITTALS
A. Submit under provisions of Section 01300.
B. Product Data: Show compliance with the Contract
Documents. Include manufacturer's installation
instructions.
C. Samples: 6 inch by 6 inch, of each type used.
1.5 DELIVERY, STORAGE AND HANDLING
A. Deliver all materials in manufacturer's unopened packages
with all labels intact.
B. Unload materials and check for damage. Remove damaged,
rejected materials from site immediately.
C. Store geocomposite sheet in dry area in manufacturer's
protective packaging. Cover opened, partial packages to
protect from oil, dirt and UV exposure.
D. Geocomposite sheet will become more rigid and less impact-
resistant below 25 degrees F. Handle with extra care at
low ambient air temperature conditions.
1.6 SCHEDULING AND SEQUENCING
A. Install geocomposite sheet just prior to installation of
covering materials and cover promptly to avoid damage.
PART 2 PRODUCTS
2.1 MANUFACTURER
A. Provide products manufactured by Greenstreak Plastic
Products Co., Inc., St. Louis, MO, 63122.
Phone: (314) 225-9400 or (800) 325-9504. Fax: (314) 225-
9854 or (800) 551-5145.
2.2 MATERIALS
NOTE ** There are 3 types of geocomposite sheet specified
below. Delete any that are not required.
NOTE ** Use normal duty, single sided SHEET DRAIN No. 884
at vertical foundation walls, retaining walls,
sloped bridge abutments, box culverts, and other
locations with high flow and moderate compressive
strength requirements. Heavy duty sheet is
available for high compressive strength
requirements, with lower flow. If both types of
vertical applications are required, be sure to
indicate which type is to be installed in each
location.
A. Normal Duty Geocomposite Sheet for Vertical Applications:
Greenstreak "SHEETDRAIN No. 884."
1. Core: High impact polystyrene formed with dimpled
drain area.
a. Flow rate in accordance with ASTM D 4716 (at 3600
psi and i=1): 20.0 gpm/ft width, minimum.
b. Compressive strength in accordance with
ASTM D 1621: 15,000 psf, minimum.
2. Fabric: Non-woven needle punched polypropylene, 4
ounce filter fabric, with UV stabilizers.
a. Grab tensile in accordance with ASTM D 4632: 100
lbs, minimum.
b. Grab elongation in accordance with ASTM D 4632:
35 percent.
c. Mullen burst in accordance with ASTM D 3786:
215 psi, minimum.
d. Puncture strength in accordance with ASTM D 4833:
55 lb, minimum.
e. Apparent opening in accordance with ASTM D 4751:
70 US Std sieve.
f. Permittivity in accordance with ASTM d 4491: 90
gpm/sf, minimum.
3. Thickness:
a. Composite: 0.42 inch.
b. Core: 0.38 inch.
c. Fabric: 0.040 inch.
NOTE ** Use heavy duty, single sided SHEET DRAIN HS No.880
at deep foundations, vertical lagging, chimney
drains, landfill leachate detection systems, and
other locations with moderate flow and high
compressive strength requirements.
B. Heavy Duty Geocomposite Sheet for Vertical Applications:
Greenstreak "SHEETDRAIN HS No. 880."
1. Core: High impact polystyrene formed with dimpled
drain area.
a. Flow rate in accordance with ASTM D 4716 (at 3600
psi and i=1): 5.0 gpm/ft width, minimum.
b. Compressive strength in accordance with
ASTM D 1621: 25,000 psf, minimum.
2. Fabric: Non-woven needle punched polypropylene, 4
ounce filter fabric, with UV stabilizers.
a. Grab tensile in accordance with ASTM D 4632: 100
lbs, minimum.
b. Grab elongation in accordance with ASTM D 4632:
35 percent.
c. Mullen burst in accordance with ASTM D 3786:
215 psi, minimum.
d. Puncture strength in accordance with ASTM D 4833:
55 lb, minimum.
e. Apparent opening in accordance with ASTM D 4751:
70 US Std sieve.
f. Permittivity in accordance with ASTM d 4491: 90
gpm/sf, minimum.
3. Thickness:
a. Composite: 0.25 inch.
b. Core: 0.21 inch.
c. Fabric: 0.027 inch.
NOTE ** Use single sided DECK DRAIN No. 886 at horizontal
applications such as plaza decks and terrace
gardens with pedestrian loads only, and planter
boxes.
C. Geocomposite Sheet for Horizontal Applications:
Greenstreak "DECKDRAIN No. 886."
1. Core: High impact polystyrene formed with dimpled
drain area.
a. Flow rate in accordance with ASTM D 4716 (at 3600
psi and i=1): 20.0 gpm/ft width, minimum.
b. Compressive strength in accordance with
ASTM D 1621: 20,000 psf, minimum.
2. Fabric: Woven polypropylene, 6.5 ounce filter
fabric.
a. Grab tensile in accordance with ASTM D 4632: W
300 lbs, F 200 lbs, minimum.
b. Grab elongation in accordance with ASTM D 4632: W
30 percent, F 23 percent.
c. Mullen burst in accordance with ASTM D 3786: 450
psi, minimum.
d. Puncture strength in accordance with ASTM D 4833:
120 lb, minimum.
e. Apparent opening in accordance with ASTM D 4751:
30/50 US Std sieve.
f. Permittivity in accordance with ASTM d 4491: 50
gpm/sf, minimum.
3. Thickness:
a. Composite: 0.43 inch.
b. Core: 0.38 inch.
c. Fabric: 0.044 inch.
D. Adhesives: The following types of adhesives are
acceptable:
1. General construction grade adhesives compatible with
dampproofing/waterproofing compound.
2. Pressure sensitive adhesive.
3. Mastic used for waterproofing membrane application.
NOTE ** Delete the following paragraph if mechanical
fasteners are not used. Many sealants and
adhesives are temperature dependent. A tendency in
cold weather is to use mechanical fasteners. Call
Greenstreak for specific
recommendations/precautions for use of mechanical
fasteners. Obviously if a waterproofing membrane is
used, penetration of that membrane with mechanical
fasteners would not be acceptable.
E. Furring Strips: Preservative-treated lumber. See
Section 06100 - Rough Carpentry.
PART 3 EXECUTION
3.1 EXAMINATION
NOTE ** Delete references to applications not required
below.
A. Verify that indicated components of waterproofing system
have been installed.
B. Verify that horizontal applications have sufficient slope
to drain.
C. Verify that collection piping has sufficient slope to
drain.
D. Verify that invert elevation of collection pipe is below
construction joint in vertical subgrade structure.
E. Do not begin until substrates are dry, dew and frost
free, and free of dust or other materials which prevent
adhesion of sheet to substrate.
F. Submit written notification of unacceptable conditions or
substrates.
3.2 INSTALLATION
A. Install geocomposite sheet to drain water to drains
and/or piping indicated on drawings.
B. To splice, overlap two rows of dimples and mechanically
interlock with rubber mallet. Lap excess fabric a
minimum of 3 inches and secure as necessary with
adhesive. Shingle laps in the direction of flow.
C. Face fabric towards hydrostatic source and face core
towards subgrade structure.
D. Adhere geocomposite sheet to substrate using adhesive.
NOTE ** Consult Greentreak for use of mechanical fasteners.
See note in Part 2 at furring strips. Delete the
following paragraph if mechanical fasteners are not
used.
E. Fasten geocomposite sheet to furring strips using
mechanical fasteners, as recommended by manufacturer.
F. At terminations of geocomposite sheet, roll and tuck
excess fabric to back of core to prevent intrusion of
soils into core.
G. At subdrainage piping, lap additional sheet drain fabric
over and around collection pipe. Place geocomposite
sheet behind perimeter collection pipe.
H. Promptly cover sheet to protect from damage by wind and
ultraviolet.
I. Repair tears and punctures in fabric with new filter
fabric adhered over damaged area.
NOTE ** Be sure to include in the earthwork section a
requirement that backfilling over geocomposite
sheet must be performed in compacted lifts.
J. Verify that backfill is performed in compacted lifts.
Sequence tall applications requiring bands of
geocomposite sheet with backfill to accommodate vertical
movement of sheet during compaction.
END OF SECTION