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CITY OF EVERETT SPECIAL PROVISIONS <br /> <br />Beverly Lake Water Quality Retrofit Division 5 – SURFACE TREATMENTS August 2023 <br /> <br />AND PAVEMENTS <br />WO No. – UP3745 SP - 170 <br />nuclear density gauge and WSDOT SOP 736 when using cores to determine <br />density. <br />Tests for the determination of the pavement density will be taken in accordance <br />with the required procedures for measurement by a nuclear density gauge or <br />roadway cores after completion of the finish rolling. <br />If the City uses a nuclear density gauge to determine density, the City will use <br />the test procedures FOP for WAQTC TM 8 and WSDOT SOP T 729 on the day <br />the mix is placed and prior to opening to traffic. <br />Roadway cores for density may be obtained by either the City or the Contractor <br />in accordance with WSDOT SOP 734. Provide minimum 4-inch core diameter, <br />unless Engineer approves otherwise. The City will test Roadway cores in <br />accordance with WSDOT FOP for AASHTO T 166. <br />If the Contract includes the Bid item “Roadway Core”, obtain the cores in the <br />presence of the Engineer on the same day the mix is placed and at Engineer <br />designated locations. If the Contract does not include the Bid item “Roadway <br />Core”, then the City will obtain the cores. <br />For a lot in progress with a CPF less than 0.75, a new lot will begin at the <br />Contractor’s request after the Engineer is satisfied that material conforming to <br />the Specifications can be produced. <br />Compact HMA mixture accepted by commercial evaluation and HMA <br />constructed under conditions other than those listed above on the basis of a <br />test point evaluation of the compaction train. Perform the test point evaluation <br />in accordance with instructions from the Engineer. Use the number of passes <br />with an approved compaction train required to attain the maximum test point <br />density on all subsequent paving. <br />Thoroughly compact HMA for preleveling. Compact HMA used for preleveling <br />wheel rutting with a pneumatic tire roller unless Engineer approves otherwise. <br />5-04.3(10)A Test Results <br />For a sublot that has been tested with a nuclear density gauge that did <br />not meet the minimum of 92 percent of the reference maximum density in <br />a compaction lot with a CPF below 1.00 and thus subject to a price <br />reduction or rejection, the Contractor may request that a core be used for <br />determination of the relative density of the sublot. The relative density of <br />the core will replace the relative density determined by the nuclear <br />density gauge for the sublot and will be used for calculation of the CPF <br />and acceptance of HMA compaction lot. <br />When City takes cores at the Contractor’s request, the City must receive <br />request by noon of the next workday after the Contractor is provided with <br />nuclear density test results for the sublot. City will obtain core(s) from <br />locations outside of wheel paths and as the Engineer determines. <br />Provide traffic control in accordance with Engineer’s direction. Failure by <br />the Contractor to provide the requested traffic control will result in <br />forfeiture of the request for cores. If the CPF for the lot based on the <br />results of the HMA cores is less than 1.00, the City will deduct the cost <br />for the coring from any monies due or that may become due the <br />Contractor under the Contract at the rate of $200 per core. In addition, <br />the cost of the traffic control will also be the Contractor’s responsibility.