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   CONSTRUCTIONQUALITYPLAN  Ͳ   FORTHEINSTALLATIONOF HDPEGEOMEMBRANE                QAQCP
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  QAQC   Plan   Ver   2   BH   28/10/2012   Page   1   CONSTRUCTION   QUALITY   PLAN    FOR   THE   INSTALLATION   OF   HDPE   GEOMEMBRANE    QAQC   Plan   Ver   2   BH   28/10/2012   Page   2   Table   of    Contents   SECTION   A    –   CONSTRUCTION   QUALITY   CONTROL   A)  Manufacturing   quality   control   3   B)  Delivery,   Storage   and   Handling   4   C)  On  Site   Material   Inspection   4   D)  Panel   Identification   and   Layout   5   E)  Equipment   5   F)  Subgrade   Preparation   6   G)  Anchoring   7   H)  Deployment   7   I)  Panel   placement   8   J)  Preparation   for   HDPE   or   LLDPE   Seaming   9   K)  Trial   welds   10   L)  Welding   Procedures   11   M)  Seam   Inspection   and   Repair   13   SECTION   B    –   INSTALLATION   QUALITY   ASSURANCE   A)  Conformance   Testing   14   B)  Non  Destructive   Testing   14   C)  Destructive   Testing   16   D)  Defects   and   Repairs   18   E)  Documentation   18   F)  Independent   testing   21   G)  Geomembrane   Acceptance   21   H)  Flowchart    –   Geomembrane   Welding   and   Installation   22   SECTION   C    –   STANDARD   INSTALLATION   QC   &   QUALITY   ASSURANCE   REQUIREMENTS   23   SECTION   D    –   SITE   SPECIFIC   REQUIREMENTS   25   SECTION   E    –   APPENDICES   26   APPENDIX   1   QUALITY   CONTROL   RECORD   SHEETS   APPENDIX   2    –   HDPE   LINER   TECHNICAL   DATA   SHEET   APPENDIX   3    –   MANUFACTURE   QUALITY   CONTROL   PLAN    QAQC   Plan   Ver   2   BH   28/10/2012   Page   3   SECTION   A    –   CONSTRUCTION   QUALITY   CONTROL   This   manual   addresses   the   Quality   Control   Program   developed   and   utilised   by   Ecotech   Installation   Personnel   to   assure   the   quality   of    workmanship   and   the   installation   integrity   of    HDPE   and   LLDPE   geomembranes.   Ecotech   recognises   that   careful   and   specific   documentation   of    the   installation   is   required   to   substantiate   this   Quality   Control   Program.   A. MANUFACTURING   QUALITY   CONTROL   1. HDPE and LLDPE Geomembrane Quality Control 1.1 The manufacture standard quality control specifications are documented in Section E  Appendix 3. Site specific requirements, if any, are documented in Section D. 1.2 The geomembrane shall consist of quality resins designed and manufactured specifically for the purpose of this work, as satisfactorily demonstrated by prior use. The geomembrane shall be high density polyethylene (HDPE) or linear low density polyethylene (LLDPE). The geomembrane liner will be manufactured from first quality resins containing no plasticizers, fillers, recycled polymers, or extenders. Carbon black is normally added to provide ultraviolet resistance, and other additives to provide thermal stability. If a color other than black is specified then color concentrates and other ultraviolet inhibitors will be added in place of carbon black. 1.3 The geomembrane shall be manufactured as a continuous sheet approximately 8 meters wide. The roll length shall be maximized to provide the largest manageable sheet for the fewest field seams. All rolls shall be identified with a unique roll number printed on a label affixed to the inside and outside of the roll showing manufacturer, thickness, and material type (HDPE or LLDPE). 1.4 The geomembrane shall be either smooth-surface or textured-surface material. Textured-surface geomembrane shall be manufactured so that the surface irregularities are on one side or both sides of the sheet. 2. Raw Materials 2.1 The resin shall be designed and manufactured specifically for the intended purpose. Tests shall be performed by the resin manufacturer and results provided to Ecotech. When the resin is delivered, it shall be tested to verify that it meets the required specification. 2.2 Test results shall be recorded on the relevant form. 2.3 The resin shall be a standard product or an approved equal.  QAQC   Plan   Ver   2   BH   28/10/2012   Page   4   3. Geomembrane Testing 3.1 Geomembrane is tested at the frequencies indicated on Ecotech’s standard material specification sheets (Section E) unless modified by site-specific project requirements (Section D). 3.2 Test results are recorded on the relevant form. Test results shall refer to the relevant roll number. 4. Extrusion Rod 4.1 Extrusion rod is tested at the frequencies indicated on Polytex’s standard material specification sheets (Section E) unless modified by site-specific project requirements (Section D). 4.2 Test results shall be recorded on the relevant form. 5. Storage and Handling 5.1 Rolls of material are handled with equipment that will not damage the membrane. Fabric straps are attached to the rolls of material to be used for unloading at the job site. 5.2 The storage area shall be reasonably flat and free of sharp rocks or other objects that could damage the material. B. Delivery,   Storage   and   Handling   1. Prior   to   unloading,   the   handling   equipment   is   inspected   to   verify   that   it   will   not   damage   the   material.   Fabric   straps   or   other   approved   apparatus   are   used   for   handling   of    material.   2. Rolls   must   be   examined   upon   unloading   to   insure   that   there   is   no   damage   to   the   material   and   to   assure   that   the   correct   material   for   the    job   has   been   received.   3. The   storage   area   must   be   secure   to   prevent   vandalism   and   thefts   and   must   be   such   that   rolls   are   not   likely   to   be   damaged   by   passing   vehicles.   The   storage   area   shall   be   such   that   continuous   contact   with   water   is   minimized.   The   storage   area   shall   be   smooth,   flat   and   free   of    rocks   or   other   objects   that   could   cut   or   puncture   the   liner.   Rolls   of    geomembrane   do   not   need   protection   from   normal   weather   conditions.   C. On  site   Material   Inspection   1. Identification   labels   on   material   rolls   shall   be   inspected   and   roll   numbers   recorded   for   future   documentation.   The   roll   number   is   unique   and   shall   be   used   to   identify   the   roll   in  
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