SECTION 02230

GEOTEXTILE

1.	GENERAL

1.1	Scope of Work

A.	The CONTRACTOR shall provide all labor, materials, equipment, and services necessary for the placement of geotextile stabilization fabric in the landfill cap and as shown on the drawings and specified.

1.2	Submittals

A.	Shop Drawings:

1.	Refer to Section 01011 for requirements relating to shop drawing submittals.

2.	Submit manufacturer's data, specifications, installation instructions and dimensions.

3.	Submit an affidavit certifying that the geotextile furnished complies with all requirements specified herein and is free of any broken needles.

4.	No geotextile shall be shipped until the affidavit is submitted to the ENGINEER.

1.3	Quality Assurance

A.	Manufacturer's Qualifications:

Geotexti1e manufacturer shall be a specialist in the manufacture of drainage control filter fabric, and must have produced and successfully installed a minimum of five million square feet.

1.4	Product Delivery, Storage and Handling

A.	Each roll of geotextile delivered to the site shall be labeled by the manufacturer identifying the manufacturer's name, product identification, lot number, roll number and roll dimensions.

B.	Geotextile shall be protected from ultraviolet light exposure, precipitation or other inundation, mud, dirt, dust, puncture, cutting or any other damaging or deleterious conditions. Geotextile rolls shall be shipped and stored in relatively opaque and watertight wrappings.

C.	CONTRACTOR shall provide all labor and equipment required to assist the ENGINEER in inspection of materials upon delivery to the site.

2.	PRODUCTS

2.1	Geotextile

A.	Geotextile shall be Mirafi 600X or equal, and shall conform to the following:

Typical

Fabric Property	Unit	Test Method	Value

Grab Tensile Strength	lb.	ASTMD-1682	300

Grab Tensile Elongation	%	ASTMD-1682	35 (max.)

Modulus (at 10% Elongation)	lb.	ASTMD-1682	140

Trapezodal Tear Strength	lb.	ASTMD-1117	120

Mullen Burst Strength	psi	ASTMD-3786	600+

Puncture Strength	lb.	ASTMD-3787	130

Abrasion Resistance	lb.	ASTMD-3884	100

Coefficient. of Permeability, K	cm/sec	CFMC-GET-2	0.01

Water Flow Rate	gal/min/sf	CFMC-GET-2	50

EOS	US Std. Sieve	COE-CW-02215	20-45

Geotextile shall be woven from monofilaments of polypropylene which are nonbiodegradable and resistant to most soil chemicals, acids and alkalies within a pH range of 3 to 12. The fabric shall be stabilized against UV degradation.

3.	EXECUTION

3.1	Installation - General

A.	All geotextiles shall be weighted with sandbags when required. Such sandbags shall be installed during placement and shall remain until replaced with cover material.

B.	Fabric shall be overlapped side-to-side and end-to-end 12 inches.

C.	Geotextiles shall not be exposed to precipitation prior to being installed, and shall not be exposed to direct sunlight for more than 15 days.

D.	Install according to manufacturer's recommendations.

3.2	Geotextile Repair

A.	Any holes or tears in the fabric shall be repaired as follows:

1.	On slopes: A fabric patch shall be sewn into place using a double sewn lock stitch (1/4 in. to 3/4 in. apart and no closer than I inch from any edge). Should any tear exceed 10 percent of the width of the roll, that roll shall be removed from the slope and replaced.

2.	Flat areas: A fabric patch shall be spot-seamed in place with a minimum of 24 inches of overlap in all directions.

B.	Care shall be taken to remove any soil or other material which may have penetrated the torn geotextile.

3.3	Placement of Cover Materials

A.	CONTRACTOR shall place all cover materials in such a manner to ensure the geotextile is not damaged; minimal slippage of the geotextile on underlying layers; and no excess tensile stresses in the geotextile.

* END OF SECTION *