Laserfiche WebLink
<br /> <br /> Forward Landfill WMU FU-23 02300 18 EARTHWORK <br /> 3. Moisture conditioning shall be uniform throughout each lift <br /> 4. The Clay Earthfill material shall be compacted in-place to a minimum dry <br />density of 90 percent relative compaction at a water content of 3 to <br />6 percent greater than the optimum water content as measured by ASTM <br />D1557. <br /> 5. Scarify surface of each lift to a depth of 2 inches prior to placing the <br />subsequent lift of Clay Earthfill Material. <br /> 6. Clay Earthfill Material shall not be placed at a high water content so that <br />excessive cracking occurs when the material dries out. <br /> <br /> <br /> C. Moisture Control <br /> <br /> 1. During compacting operations, maintain water content in each lift within <br />the range of 3 to 6 percent greater than the optimum water content. <br /> 2. If Clay Earthfill Material is too dry, add water to material by sprinkling, <br />then mixing or discing to make moisture content uniform throughout lift. <br /> 3. Do not attempt to compact Clay Earthfill Material that contains excessive <br />moisture. Aerate material by blading, discing, harrowing, or other methods, <br />to hasten drying process. <br /> <br /> D. Field Quality Control <br /> <br /> 1. As the material is being placed and compacted, the QA/QC <br />CONSULTANT will be monitoring the construction activities and soil <br />properties as described in the CQA Manual. Acceptance testing frequencies <br />are defined in the CQA Manual. The EARTHWORK CONTRACTOR <br />shall cooperate with the QA/QC CONSULTANT in obtaining samples for <br />the CQA acceptance testing, and in leveling and backfilling areas <br />designated by the QA/QC CONSULTANT. <br /> 2. Holes left by sampling and testing shall be backfilled by the <br />EARTHWORK CONTRACTOR using the Clay Earthfill Material. <br /> 3. If acceptance testing by the QA/QC CONSULTANT indicates that the <br />material does not meet specified requirements for density, water content, or <br />lift thickness, the EARTHWORK CONTRACTOR shall terminate material <br />placement until corrective measures are taken at the EARTHWORK <br />CONTRACTOR's sole expense. Corrective measures could include, but are <br />not limited to, scarifying and recompacting of material or removal of <br />material that does not meet the requirements of these Specifications. <br /> <br /> E. Protection: <br /> <br /> 1. The Clay Earthfill shall be protected from any contamination which <br />increases the hydraulic conductivity. Any contaminated material shall be <br />removed and replaced at no cost to the OWNER. <br /> <br /> <br />