the same formulation as being used for the textured sheet materials. The yield stress used to
calculate the applied load for the test should be the manufacturer's mean value obtained from
the manufacturer’s quality control testing of the same sample.
Carbon black dispersion (only near spherical agglomerates) for 10 different views:
* Qin Categories 1 or 2; and
*® lin Category 3.
2. The Geomembrane shall contain a minimum of 2 percent but not more
than 3 percent carbon black according to ASTM D1603, and have a carbon
black dispersion rating of Category 1 or Category 2 according to ASTM
D5596.
3. The Geomembrane shall consist of unreinforced HDPE containing 3
percent by weight maximum additives, fillers, or extenders, including
carbon black.
4. The Geomembrane shall have no striations, pinholes, or bubbles and shall
be free of holes, blisters, undispersed raw materials, or any sign of
contamination by foreign matter.
5. The Geomembrane delivered to the site shall be accompanied by a QC
Certificate for each roll (roll Certificates must be provided to the CQA
Consultant prior to shipment to the job site), and shall be identified with a
distinctive code that will serve as the identification number on the as-
built drawing.
6. Samples shall be taken from the delivered material by the CQA
Consultant, at a frequency of one sample per 50,000 ft2, and shall be sent
to an Independent Testing Laboratory to assure conformance with the
specifications listed in Paragraphs 2.1, B.1, B.2, and B.3 of this Section.
Geomembrane Manufacturer’s certifications that the environmental
stress crack testing and dimensional stability requirements are met will
be accepted.
7. The texturing of the Gcomembrane shall be regular and uniform. Rolls of
Geomembrane containing irregular texturing (bald areas or clumps of
texturing material) shall be rejected by the CQA Consultant and must be
removed from the site at no cost to OWNER.
8. See Section 02560 for information on interface strength requirements.
PART 3 - EXECUTION
3.1 DELIVERY, STORAGE, AND HANDLING
A.
Transportation to the site and unloading and storage at the site shall be the
responsibility of the Installation Contractor. Damaged Geomembrane or
Geomembrane not meeting these Specifications shall be immediately removed
from the site and replaced, at no cost to OWNER. Once delivered and accepted
by the CQA Consultant, the Geomembrane rolls shall be stored on a prepared
surface approved by the CQA Consultant, no more than three rolls high, and
protected from dirt, grease, water, abrasions, excessive heat or cold, or other
damage.
File No. 3066.09.00 Geomembrane 02550 - 6 of 14 December 2017
