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E. The extrusion welding process shall restart by Binding the existing seam and rewelding a new <br />seam. Welding shall commence where the grinding started and must overlap the previous <br />• seam by at least two (2) inches. Reseaming over an existing seam without regrinding shall not <br />be permitted. <br />F. Each repair shall be non-destructively tested, except when CERTIFYING ENGINEER <br />requires a destructive seam sample obtained from a repaired seam. Repairs that pass the <br />destructive test shall be taken as an indication of an adequate repair. Failed tests indicate that <br />the repair shall be repeated and retested until passing test results aze achieved. <br />Recording the Results: Daily documentation of all non-destructive and destructive testing <br />shall be provided to MANAGER by CQA Monitor. This documentation shall identify all <br />seams that initially failed the test and include evidence that these seams were repaired and <br />successfully retested. <br />3.11 CONFORMANCE TESTING: <br />A. During manufacturing of the geomembrane, CQA Monitor will be present to obtain and <br />forward samples to the Quality Assurance Testing Laboratory for testing to ensure <br />conformance with the SPECIFICATIONS. <br />B. Samples will be taken across the entire width of the roll and shall not include the first three (3) <br />feet. Unless otherwise stated, samples will be three (3) feet long by the width of the roll. <br />CQA Monitor will mark the machine dvection on the samples with an arrow. Unless <br />otherwise stated, samples shall be taken at a frequency of no less than one per one hundred <br />fifty thousand (150,000) squaze feet. As a minimum, the following tests will be performed to <br />verify conformance to the design SPECIFICATIONS with minimum values specified in <br />Section 2776, Article 2.01.: <br />r~ <br />~J <br />Y PROPER1aY,~.~*~ ~CFSTk : THOD. <br />Thickness (mils) GRI-GM8 <br />Compound Density (g/cc) ASTM D1505 <br />Tensile Strength ($oth yield <br />and ultimate strength and <br />elongation, as specified) ASTM D638 <br />Cazbon Black Content (%) ASTM D1603 <br />3.12 PLACEMENT OF SOIL OR GRANULAR MATERIALS: <br />All soil materials located on top of a geomembrane shall be placed in such a manner as to ensure: <br />A. The geomembrane and any underlying geotextile is not damaged. <br />B. Minimal slippage of the geomembrane on underlying layer occurs. <br />C. Minimal movement and wrinkling or folding of the underlying geosynthetics layer(s) occurs. <br />D. No excess tensile stresses shall occur in the geomembrane, such as by earth moving equipment <br />making sudden starts, stops, toms. The allowable ground pressure for equipment shall be <br />prescribed by DESIGN ENGINEER for the material type and layer thickness as identified in <br />• Item 3.06 of Section 2200. <br />*** END OF SECTION *** <br />Section 02776 Page 20 of 20 October 25, 2000 <br />Geomembrane Golder Assotiptes Revision 8 <br />1:\00\1201 \0900\CER7REP0802 W PPENDS W PPE1993-2099d2T161 R8. DOC <br />