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3.05 MOISTURE AND DENSITY CONTROL <br /> A. Compacted Embankment Fill <br /> The Standard Optimum Moisture Content is defined as"that moisture content which will result in a <br /> maximum dry unit weight of the soil when subjected to the Standard Proctor Compaction Test as <br /> described by ASTM D698." Material represented by the samples tested having a placement moisture <br /> content less than 1%below standard optimum condition or more than 2%wet of the standard <br /> optimum condition will be rejected and shall be reworked until the moisture content is between these <br /> limits. Additional moisture as required in the opinion of the Engineer may be applied by sprinkling <br /> on the embankment. <br /> Each layer of earthfill material shall be compacted to a minimum of 95%of Standard Proctor(ASTM <br /> D698). During compaction,the placement moisture content and dry density of the earthfill shall be <br /> maintained within the control limits specified in each section. <br /> To determine that the moisture content and dry density requirements of the compacted earthfill are <br /> being met,field and laboratory tests will be made by the Contractor at intervals on samples taken at <br /> embankment locations determined by the Engineer. Density testing shall be by nuclear density gage <br /> verified at intervals by sand cone tests. The Contractor may take additional tests for his own use. <br /> These shall not be counted toward the required number of tests. The Engineer may conduct <br /> additional,independent tests at his discretion. <br /> Materials not meeting the specified moisture content and dry density requirements,as determined by <br /> the tests or observation by the Engineer,shall be reworked until approved results are obtained. <br /> Visible pumping of the soil will automatically require reworking. Reworking may include removal, <br /> rehandling,reconditioning,rerolling,or combinations of these procedures. The Contractor shall be <br /> entitled to no additional allowance above the prices of the work required to achieve the placement <br /> moisture content and density specified in this section. <br /> The moisture content of the earthfill material prior to and during compaction shall be distributed <br /> uniformly throughout each layer of the material. As far as practicable,the materials shall be brought <br /> to the proper moisture content by adding supplementary water,if required,to the material by <br /> sprinkling on the earthfill and each layer of earthfill shall be conditioned so that the moisture is <br /> uniform throughout the layer. <br /> B. Construction Staking <br /> Construction lathe shall be placed at a minimum of every 100' along the embankment stationing on <br /> the upstream and downstream embankment face during construction. Lathe shall be placed at the <br /> above horizontal spacing at the start of embankment fill placement and every 5' of vertical fill <br /> placement. Lathe shall also be placed at the contacts of the dam zones on the above spacing. The <br /> lathe shall be marked at a minimum with actual elevation and embankment stationing. <br /> END OF SECTION <br /> Section 02290-Page 4 of 4 February 2016 <br />