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Aged HMA3 or Un-milled <br /> PCC 0.05-0.08 0.10-0.15 0.05-0.08 <br /> Milled HMA or Milled PCC 0.07-0.10 0.14-0.20 0.07-0.10 <br /> 'As provided by the asphalt emulsion supplier <br /> 'When approved by the Engineer <br /> 301der than 1 year <br /> 4. The temperature of the bituminous material at the time of application shall be approved by the <br /> Engineer,within the limits specified following: <br /> (a) SS-1,SS-1H,CSS-1,CSS-1H .........70 to 160 Degrees Fahrenheit <br /> (b) MC-250..........................................165 to 220 Degrees Fahrenheit <br /> B. The Contractor is required to use the self-propelled pneumatic tire roller as an intermediate roller on the <br /> wearing courses. <br /> C. Cut the adjacent asphalt surface prior to construction of the bituminous surface course to obtain a clean, <br /> vertical, solid edge. <br /> D. Compaction of all bituminous mixtures shall be by the Ordinary Compaction Method. <br /> 3.2 SOURCE QUALITY CONTROL <br /> A. The bituminous mix shall be designed using Contractor Trial Mix Designs. A current MnDOT mix design may <br /> be accepted provided it represents the aggregate source and bituminous plant being used for the project, <br /> and is approved by the Engineer. No bituminous mixture shall be placed without an approved mix design. <br /> B. Testing of the material bituminous tack coat may be required, if determined by the Engineer,that the <br /> material appears suspect. <br /> 3.3 FIELD QUALITY CONTROL <br /> A. If required by the Engineer,cores for mat density and for lift thickness verification shall be taken as <br /> specified in 2360.D.1.h of the referenced MnDOT Specification except that for daily production less than <br /> 300 tons,the Engineer may require that two cores are taken (one for Contractor testing and one <br /> companion core). Sample locations shall be designated by the Engineer and made with a drilling device that <br /> produces clean sharp,vertical edges. <br /> B. Lift Thickness Tolerances: <br /> 1. Lift thickness tolerances shall be as specified in MnDOT 2360. <br /> 2. If any cores indicate lift thicknesses outside of the specified tolerances,the Contractor may,at its own <br /> cost and expense,take additional core samples to further define the extent of the deficiency. <br /> 3. The Engineer shall calculate deficient pavement areas using the locations and thickness results of all <br /> core samples and prorating the thickness profile. <br /> 4. At the discretion of the Engineer as an alternative to removal and replacement,the Engineer may allow <br /> a $1.00 deduction per square yard will be made for each 1/8-inch deficiency of thickness beyond the <br /> specified tolerances. <br /> 5. Reduction in payment for bituminous courses constructed to more than the maximum permissible <br /> thickness shall be in accordance with MnDOT 2360.3.E,except that the thickness tolerances specified <br /> herein apply. <br /> C. Testing: <br /> 1. For projects with 2000 tons or less of a particular mix type,delete Tables 2360-10 and 2360-11 of the <br /> referenced MnDOT 2360 and substitute the following: <br /> City of Elk River-R13.119052 PLANT-MIXED BITUMINOUS SURFACING <br /> August 2019 PAGE 02740-3 <br /> V050208©Bolton&Menk,Inc.2019,All Rights Reserved <br />