Earthwork Solutions, LLC 1/30/2025

Fulton Street Pedestrian Bicycle Corridor PAGE 90 OF 114 CONTRACT FEDERAL AID # TAP-0420(026) WO #3785 September 6, 2024 For a lot in progress with a CPF less than 0.75, a new lot will begin at the Contractor’s 1 request after the Engineer is satisfied that material conforming to the Specifications can 2 be produced. 3 4 HMA mixture accepted by commercial evaluation and HMA constructed under conditions 5 other than those listed above shall be compacted on the basis of a test point evaluation 6 of the compaction train. The test point evaluation shall be performed in accordance with 7 instructions from the Engineer. The number of passes with an approved compaction 8 train, required to attain the maximum test point density, shall be used on all subsequent 9 paving. 10 11 HMA for preleveling shall be thoroughly compacted. HMA that is used for preleveling 12 wheel rutting shall be compacted with a pneumatic tire roller unless otherwise approved 13 by the Engineer. 14 15 Test Results 16 For a sublot that has been tested with a nuclear density gauge that did not meet the 17 minimum of 91 percent of the reference maximum density in a compaction lot with a CPF 18 below 1.00 and thus subject to a price reduction or rejection, the Contractor may request 19 that a core be used for determination of the relative density of the sublot. The relative 20 density of the core will replace the relative density determined by the nuclear density 21 gauge for the sublot and will be used for calculation of the CPF and acceptance of HMA 22 compaction lot. 23 24 When cores are taken by the Contracting Agency at the request of the Contractor, they 25 shall be requested by noon of the next workday after the test results for the sublot have 26 been provided or made available to the Contractor. Core locations shall be outside of 27 wheel paths and as determined by the Engineer. Traffic control shall be provided by the 28 Contractor as requested by the Engineer. Failure by the Contractor to provide the 29 requested traffic control will result in forfeiture of the request for cores. When the CPF for 30 the lot based on the results of the HMA cores is less than 1.00, the cost for the coring will 31 be deducted from any monies due or that may become due the Contractor under the 32 Contract at the rate of $200 per core and the Contractor shall pay for the cost of the 33 traffic control. 34 35 5-04.3(10)A HMA Compaction – General Compaction Requirements 36 Compaction shall take place when the mixture is in the proper condition so that no undue 37 displacement, cracking, or shoving occurs. Areas inaccessible to large compaction 38 equipment shall be compacted by other mechanical means. Any HMA that becomes 39 loose, broken, contaminated, shows an excess or deficiency of asphalt, or is in any way 40 defective, shall be removed and replaced with new hot mix that shall be immediately 41 compacted to conform to the surrounding area. 42 43 The type of rollers to be used and their relative position in the compaction sequence 44 shall generally be the Contractor’s option, provided the specified densities are attained. 45 Unless the Engineer has approved otherwise, rollers shall only be operated in the static 46 mode when the internal temperature of the mix is less than 175°F. Regardless of mix 47 temperature, a roller shall not be operated in a mode that results in checking or cracking 48 of the mat. Rollers shall only be operated in static mode on bridge decks. 49