Agenda

SECTION 02550
GEOMEMBRANE
PART 1 - GENERAL
1.1. SCOPE OF WORK

A. CONTRACTOR shall furnish all labor, materials, tools, equipment, and
incidentals, and perform all operations necessary to furnish, deploy, seam, and
test the textured, high-density polyethylene (HDPE) Geomembrane
(Geomembrane) as described in this Specification and where indicated in the
Drawings.

1.2 DEFINITIONS

A. Geomembrane Manufacturer: The party responsible for the manufacturing of
the Geomembrane liner material.

The sodium bentonite components shall be 90 percent montmorillonite (from
Wyoming) and shall be applied to the base carrier sheet at no less than 1
pound/square foot.

Carrier sheets shall be woven polypropylene (3.1 0z/yd? minimum), and
nonwoven polypropylene (6 oz/yd2 minimum).

The sodium bentonite shall have a permeability no greater than 5x10-? cm/sec
at 5 psi confining pressure and 2 psi head.

PART 3 - EXECUTION

3.1

INSTALLATION

A.

SECTION 02530
GEOSYNTHETIC CLAY LINER
PART 1 - GENERAL
1.1. SCOPE OF WORK

A. Furnish all labor, materials, tools, and equipment and perform all operations
necessary to furnish, deploy, and install Geosynthetic Clay Liner (GCL) in the
areas indicated on the Drawings or as required by the ENGINEER or OWNER.

1.2 SUBMITTALS

G. Drainage Geocomposite shall not be exposed to ultraviolet rays for more than
fourteen (14) days before being covered. CONTRACTOR shall place Drainage
Sand over the Drainage Geocomposite as specified in Section 02200 and in
such a manner as to ensure the Drainage Geocomposite is not damaged.

[END OF SECTION 02520]

P:\3000s\3066.09\Source Files\Type 11 App\Specifications\Division 2 Specifications\02520 Geocomposite.docx

File No. 3066.09 Drainage Geocomposite 02520 - 5 of 5 December 2017

2.5 THREAD

A.

Thread used to seam the geotextile shall be polymer material with chemical
resistance properties equal to or exceeding those of the geotextile. The thread
shall be different color than the geotextile.

PART 3 - EXECUTION

3.1 INSTALLATION

A.

Drainage Geocomposite shall not be stockpiled or stored within the limits of
the area to be lined.

2.3. GEONET DRAINAGE GEOCOMPOSITE
A. Material Description
1. Geonet Drainage Geocomposite shall consist of a geonet to which a
geotextile has been heat-bonded to both sides.
2. The geonet shall be manufactured of high-density polyethylene.
3. The geotextile shall be needle-punched, nonwoven, short synthetic staple
polypropylene or polyester fibers

B. Geonet Drainage Geocomposite Properties
1. The components of the Multi-Linear Drainage Geocomposite specified

shall meet or exceed the values provided in the table below.

PART 2 - PRODUCTS
2.1 GENERAL

A. The Drainage Geocomposite shall meet the performance requirements of this
section. CONTRACTOR may select from either a geonet geocomposite or a
multi-liner geocomposite.

2.2 MULTI-LINEAR DRAINAGE GEOCOMPOSITE

A. Material Description

1. Multi-Linear Drainage Geocomposite shall consist of two geotextile layers
comprised of short synthetic staple fibers of 100% polypropylene or
polyester needle-punched together with perforated corrugated
polypropylene pipes (mini-pipes) regularly spaced inside.

SECTION 02520

DRAINAGE GEOCOMPOSITE

PART 1 - GENERAL

1.1

1.2

1.3

1.4

SCOPE OF WORK

A.

CONTRACTOR shall provide all labor, materials, tools, and equipment and
perform all operations necessary to furnish, deploy, and install Drainage
Geocomposite in the areas indicated on the Drawings or as required by
ENGINEER or OWNER.

QUALITY ASSURANCE

A.

Nonwoven Geotextile shall be capable of withstanding direct exposure to the
sunlight for 30 days with no measurable deterioration.

The Nonwoven Geotextile fabrics shall be non-biodegradable. CONTRACTOR
shall follow the manufacturer’s recommendations regarding handling and

installation of such materials.

2.2 GEOTEXTILES

A. Nonwoven Geotextile shall be installed as indicated in the Drawings.

B. Nonwoven Geotextile shall be manufactured pf polypropylene or polyester
material exhibiting the following Minimum Average Roll Values (MARV).

SECTION 02510

NONWOVEN GEOTEXTILE

PART 1 - GENERAL

1.1 SCOPE OF WORK

A.

CONTRACTOR shall provide all labor, materials, tools, and equipment and
perform all operations necessary to furnish, deploy, and install Nonwoven
Geotextile in the areas indicated on the Drawings or as required by ENGINEER
or OWNER.

1.2 QUALITY ASSURANCE

A.

B.

Experience

1. CONTRACTOR shall be trained and experienced in field handling, storing,
deploying, installing, and protecting geotextiles.