ARCHIVED REPORTS_2002 - JTD - Laserfiche WebLink

Home Browse Search

The following table lists the minimum moisture/density requirements for iscompacted fill materials placed. The in-place moisture content and dry density requirements are relative to the maximum dry density and optimum moisture content as determined by ASTM D1557. 5.4.3 LIFT THICKNESS AND PROCESSING If at any time the CQA Monitor observes an uncompacted lift thickness in excess of eight inches or observes material being placed without meeting the requirements for processing, stockpiling and curing, the Contractor shall immediately discontinue placing additional fills in that area. For an over thick lift, the Contractor shall immediately blade the surface to reduce the lift thickness to the Project Specifications prior to compaction. If inadequately mixed materials are placed, the Contractor shall immediately remove these materials and return them to the stockpile/processing area where they will be reprocessed. 5.4.4 GEOSYNTHETIC MATERIAL SUBGRADE The CQA Monitor, the Contractor and the Geosynthetic installer will observe and approve the geosynthetic material subgrade prior to material deployment. The finished surface shall be free of abrupt breaks, sharp objects, or other foreign material that may damage the overlying geosynthetic. The subgrade shall be unyielding, smooth and uniform and the surface shall not be pebbly or tracked and rutted by equipment. 6.0 GEOTECHNICAL CQA MONITORING FOR GEOSYNTHETICS Lei a oil V V The Contractor/Liner Manufacturer shall provide the Construction Manager with the following documentation: • A properties sheet which includes all specified properties measured using test methods indicated in the Specifications. • A description of the sampling procedure and appropriate test results. • A certification that values given in the properties sheet are guaranteed by the Liner Manufacturer. -12- CA2001-048TIN.A L CO V ER_CQA.DOC\08/20/01 Geologic Associates MOISTURE CONTENT Optimum ± 2% Optimum ± 2% FILL TYPE MINIMUM COMPACTION (percent) Foundation Soil Layer 90 Vegetative Soil Layer 90 5.4.3 LIFT THICKNESS AND PROCESSING If at any time the CQA Monitor observes an uncompacted lift thickness in excess of eight inches or observes material being placed without meeting the requirements for processing, stockpiling and curing, the Contractor shall immediately discontinue placing additional fills in that area. For an over thick lift, the Contractor shall immediately blade the surface to reduce the lift thickness to the Project Specifications prior to compaction. If inadequately mixed materials are placed, the Contractor shall immediately remove these materials and return them to the stockpile/processing area where they will be reprocessed. 5.4.4 GEOSYNTHETIC MATERIAL SUBGRADE The CQA Monitor, the Contractor and the Geosynthetic installer will observe and approve the geosynthetic material subgrade prior to material deployment. The finished surface shall be free of abrupt breaks, sharp objects, or other foreign material that may damage the overlying geosynthetic. The subgrade shall be unyielding, smooth and uniform and the surface shall not be pebbly or tracked and rutted by equipment. 6.0 GEOTECHNICAL CQA MONITORING FOR GEOSYNTHETICS Lei a oil V V The Contractor/Liner Manufacturer shall provide the Construction Manager with the following documentation: • A properties sheet which includes all specified properties measured using test methods indicated in the Specifications. • A description of the sampling procedure and appropriate test results. • A certification that values given in the properties sheet are guaranteed by the Liner Manufacturer. -12- CA2001-048TIN.A L CO V ER_CQA.DOC\08/20/01 Geologic Associates