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percent below standard optimum condition or more than two percent wet of the standard optimum condition <br /> will be rejected and shall be reworked until the moisture content is between these limits. Additional moisture <br /> as required in the opinion of the Engineer may be applied by sprinkling on the embankment. <br /> Each layer of earthfill material shall be compacted as indicated in these specifications. During compaction, <br /> the placement moisture content and dry density of the earthfill shall be maintained within the control limits <br /> specified in each section. <br /> To determine that the moisture content and dry density requirements of the compacted earthfill are being <br /> met,field and laboratory tests will be made at intervals on samples taken at locations determined by the <br /> Contractor subject to approval by the Engineer. Density testing shall be by nuclear density gage. The <br /> results of all completed earthwork tests will be available to the Engineer within one hour. <br /> Materials not meeting the specified moisture content and dry density requirements,as determined by the <br /> tests,shall be reworked until approved results are obtained. Reworking may include removal,rehandling, <br /> reconditioning,rerolling,or combinations of these procedures. The Contractor shall be entitled to no <br /> additional allowance above the prices of the work required to achieve the placement moisture content and <br /> density specified in this section. <br /> The moisture content of the earthfill material prior to and during compaction shall be distributed uniformly <br /> throughout each layer of the material. As far as practicable,the materials shall be brought to the proper <br /> moisture content by adding supplementary water,if required,to the material by sprinkling on the earthfill and <br /> each layer of earthfill shall be conditioned so that the moisture is uniform throughout the layer. <br /> Density control of compacted earthfill shall be such that the dry density of the compacted material,as <br /> determined by tests performed by the Engineer,shall conform to not less than 95%of its Standard Proctor <br /> maximum dry density. Material which does not meet these requirements will be rejected and shall be <br /> reworked until a dry density equal to or greater than these requirements is reached. <br /> 3.06 PLACING AND COMPACTING <br /> A. Reclamation Slope/Demising Berm Fill <br /> The earthfill material shall be placed in the embankment in continuous and approximately horizontal layers, <br /> not more than 9"loose lift thickness. The combined excavation and placing operations shall be such that the <br /> materials will be sufficiently blended to secure the best practicable degree of compaction and stability. To <br /> achieve sufficient blending,a disc will be required during placement of any embankment fill. <br /> The material shall be compacted to a minimum of 95%of the Standard Proctor as described in ASTM D698. <br /> Tamping sheepsfoot type rollers shall be used for compacting the embankment. The rollers shall be capable <br /> of effectively achieving the required density for the entire depth of the lifts being placed. Tamping sheepsfoot <br /> rollers shall be suitable for the material being placed,capable of rates of production which will not cause any <br /> delays to the progress of the work,and subject to the approval of the Engineer. <br /> When each layer of material has been conditioned to have the specified moisture,it shall be compacted by <br /> passing the tamping roller over. The compacted density shall be essentially uniform throughout the layer. If <br /> uncompacted earthfill material is too wet for proper compaction,the earthfill material shall be worked with <br /> harrow,scarifier,disc,or other suitable equipment to reduce the moisture content to the amount specified; <br /> shall be allowed to dry until such time as the material contains only the specified moisture content;or the <br /> material shall be removed from the embankment. Compacted earth material having a moisture content or <br /> dry density that do not meet the criteria specified shall be reworked and rerolled,as directed by the Engineer, <br /> to obtain the specified moisture content and dry density in place. <br /> B. RECLAMATION SLOPE FACE AND CREST <br /> Q2/18 Section 02290-Page 5 of 6 <br />