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2025 FEDERAL OVERLAY, W MUKILTEO BLVD – GLENWOOD AVE TO DOGWOOD DR <br /> PAGE SP84 OF SP123 SPECIAL PROVISIONS <br />WORK ORDER #3842 April 15, 2025 FEDERAL AID# NHPP-2776(011) <br />equipment shall be compacted by other mechanical means. Any HMA that becomes 1 <br />loose, broken, contaminated, shows an excess or deficiency of asphalt, or is in any way 2 <br />defective, shall be removed and replaced with new hot mix that shall be immediately 3 <br />compacted to conform to the surrounding area. 4 <br /> 5 <br />The type of rollers to be used and their relative position in the compaction sequence 6 <br />shall generally be the Contractor’s option, provided the specified densities are attained. 7 <br />Unless the Engineer has approved otherwise, rollers shall only be operated in the static 8 <br />mode when the internal temperature of the mix is less than 175°F. Regardless of mix 9 <br />temperature, a roller shall not be operated in a mode that results in checking or cracking 10 <br />of the mat. Rollers shall only be operated in static mode on bridge decks. 11 <br /> 12 <br />5-04.3(10)B HMA Compaction - Cyclic Density 13 <br />Low cyclic density areas are defined as spots or streaks in the pavement that are less 14 <br />than 90 percent of the theoretical maximum density. At the Engineer’s discretion, the 15 <br />Engineer may evaluate the HMA pavement for low cyclic density, and when doing so will 16 <br />follow WSDOT SOP 733. A $500 Cyclic Density Price Adjustment will be assessed for 17 <br />any 500-foot section with two or more density readings below 90 percent of the 18 <br />theoretical maximum density. 19 <br /> 20 <br />5-04.3(10)C Vacant 21 <br /> 22 <br />5-04.3(10)D HMA Nonstatistical Compaction 23 <br /> 24 <br />5-04.3(10)D1 HMA Nonstatistical Compaction - Lots and Sublots 25 <br />HMA compaction which is accepted by nonstatistical evaluation will be based on 26 <br />acceptance testing performed by the Contracting Agency dividing the project into 27 <br />compaction lots. 28 <br /> 29 <br />A lot is represented by randomly selected samples of the same mix design that will be 30 <br />tested for acceptance. A lot is defined as the total quantity of material or work produced 31 <br />for each Job Mix Formula placed. Only one lot per JMF is expected. A sublot shall be 32 <br />equal to one day’s production or 400 tons, whichever is less except that the final sublot 33 <br />will be a minimum of 200 tons and may be increased to 800 tons. Testing for compaction 34 <br />will be at the rate of 5 tests per sublot per WSDOT T 738. 35 <br /> 36 <br />The sublot locations within each density lot will be determined by the Engineer. For a lot 37 <br />in progress with a CPF less than 0.75, a new lot will begin at the Contractor’s request 38 <br />after the Engineer is satisfied that material conforming to the Specifications can be 39 <br />produced. 40 <br /> 41 <br />HMA mixture accepted by commercial evaluation and HMA constructed under conditions 42 <br />other than those listed above shall be compacted on the basis of a test point evaluation 43 <br />of the compaction train. The test point evaluation shall be performed in accordance with 44 <br />instructions from the Engineer. The number of passes with an approved compaction 45 <br />train, required to attain the maximum test point density, shall be used on all subsequent 46 <br />paving. 47 <br /> 48