������������������������ SECTION 02715

 

��������� GEOCOMPOSITE SHEET FOR SUBDRAINAGE SYSTEMS

 

Note:� This section could also be located in Division 7 as Section 07146 - Integral Geocomposite Sheet/Protection Board.This section is based on products manufactured by Greenstreak Plastic Products Co., Inc. located at the following address:

���� St. Louis, MO� 63122

���� Telephone:� (314) 225-9400 or (800) 325-9504.

���� Fax:� (314) 225-9854 or (800) 551-5145.

 

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.

 

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.

PART 1� GENERAL

 

1.1 SECTION INCLUDES

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

Delete any sections below not relevant to this project; add others as required.

��� A.� Section 02710 - Subdrainage Systems, for drainage piping or tile.

 

��� B.� Section 15410 - Plumbing Piping, for roof drains.

 

��� C.� Section 02200 - Earthwork, for backfilling.

 

��� D.� Section 07110 - Membrane Waterproofing

 

��� E.� Section 07120 - Fluid Applied Waterproofing

 

��� F.� Section 07130 - Bentonite Waterproofing

 

1.3 REFERENCES

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.

Definitions:

 

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.

 

Normal Direction: Direction perpendicular to the plane of the geotextile.

 

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.

 

Permeability: Rate of flow of a liquid under a differential pressure through a material.

 

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

There are 3 types of geocomposite sheet specified below.� Delete any that are not required.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.

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.

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.

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

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.

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.

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.

 

 

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