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before the next layer is started. CONTRACTOR shall coordinate with COMPANY'S <br />REPRESENTATIVE on compactions test scheduling. <br />G. Moisture Content and Density <br />1. The following table gives the moisture and density requirements for the various <br />embankment materials requiring compaction. <br />Allowable Moisture Minimum Percent <br />Material Content Compaction' <br />Range From Optimum <br />Upstream Clay Blanket 0% to +3% 98% <br />Downstream Earth -2% to +3% 95% <br />Buthress General Fill <br />Downstream Drainage -2% to +3% RD = 60%2 <br />Blanket <br />Trench Drain Filter -2% to +3% Compact with backhoe <br />Material bucket (minimum 4 tamps) <br />Interceptor Trench Filter -2% to +3% Compact with backhoe <br />Material bucket (minimum 4 tamps) <br />Clay Cap 0% to +3% 98% <br />' As determined by ASTM D-698 testing procedures (Standard Proctor). <br />2 RD =relative density; provide for relative density of 60 percent as determined by <br />ASTM D-4253, Dry Method, and ASTM D-4254, Method A. <br />H. Compaction of the embankment and foundation shall be with equipment designed for <br />the type of material being placed. In the event that the initial density tests on the <br />compacted material show that satisfactory results are not being achieved, <br />CONTRACTOR shall change his procedures to the extent necessary to achieve the <br />specified moisture content and density. The options available to CONTRACTOR in <br />making such changes in the procedure include one or a combination of the following: <br />1. Increase number of passes by the compaction equipment of each lift. <br />2. Decrease the thickness of the lift to be compacted. <br />3. Adjust soil moisture content prior to compaction by sprinkling and mixing water <br />' if the soil is drier than the specified allowable moisture content range, or <br />aerating and drying if the soil is wetter than the specified allowable moisture <br />content range. <br />' 4. Select soil at the material source that will have a moisture content closer to the <br />optimum moisture content. <br />' 02300-10 <br />