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and subjected to R -Value testing for use in component analysis and/or <br />replacement section. <br />8. Using the traffic indices provided by the Client and existing pavement <br />thickness information determined during coring operations, the 80th <br />percentile deflection response shall then be compared to <br />known pavement models. This comparison shall produce overlay <br />requirements for a select design period in accordance with Caltrans Test <br />Method Number 356, and a service life reading (Nominal Service Life) for the <br />roadways studied. <br />9. Representative asphalt concrete core samples shall be selected and <br />subjected to extraction and recovery of the asphalt cement. The penetration <br />of the recovered asphalt cement shall be determined prior to and after the <br />addition of varying amounts of rejuvenating agent. Based upon results of <br />testing, engineering recommendations as to the rate of rejuvenating agent <br />required shall be provided. <br />10. A Registered Civil Engineer shall supervise all operations, review all <br />completed data and incorporate results of deflection and materials testing <br />with observed pavement conditions. Engineered recommendations for <br />pavement rehabilitation based upon deflection and materials analysis shall be <br />provided along with replacement section design for areas requiring <br />reconstruction. <br />L:1I1cllc 0 111:11•viu <br />