HM Pacific Northwest Inc. 5/18/2023

I 1 I2 5-04.3(10)A HMA Compaction — General Compaction Requirements 3 Compaction shall take place when the mixture is in the proper condition so that no undue 4 displacement, cracking, or shoving occurs. Areas inaccessible to large compaction I 5 equipment shall be compacted by other mechanical means. Any HMA that becomes 6 loose, broken, contaminated, shows an excess or deficiency of asphalt, or is in any way 7 defective, shall be removed and replaced with new hot mix that shall be immediately I 8 compacted to conform to the surrounding area. 9 10 The type of rollers to be used and their relative position in the compaction sequence 11 shall generally be the Contractor's option, provided the specified densities are attained. 12 Unless the Engineer has approved otherwise, rollers shall only be operated in the static 13 mode when the internal temperature of the mix is less than 175°F. Regardless of mix I 14 temperature, a roller shall not be operated in a mode that results in checking or cracking 15 of the mat. Rollers shall only be operated in static mode on bridge decks. 16 I17 5-04.3(10)B HMA Compaction — Cyclic Density 18 Low cyclic density areas are defined as spots or streaks in the pavement that are less I19 than 90 percent of the theoretical maximum density. At the Engineer's discretion, the 20 Engineer may evaluate the HMA pavement for low cyclic density, and when doing so will 21 follow WSDOT SOP 733. A $500 Cyclic Density Price Adjustment will be assessed for I 22 any 500-foot section with two or more density readings below 90 percent of the 23 theoretical maximum density. 24 I 25 5-04.3(10)C Vacant 26 27 5-04.3(10)D HMA Nonstatistical Compaction I28 29 5-04.3(10)D1 HMA Nonstatistical Compaction — Lots and Sublots 30 HMA compaction which is accepted by nonstatistical evaluation will be based on I31 acceptance testing performed by the Contracting Agency dividing the project into 32 compaction lots. 33 I 34 A lot is represented by randomly selected samples of the same mix design that will be 35 tested for acceptance. A lot is defined as the total quantity of material or work produced I 36 for each Job Mix Formula placed. Only one lot per JMF is expected. A sublot shall be 37 equal to one day's production or 400 tons, whichever is less except that the final sublot 38 will be a minimum of 200 tons and may be increased to 800 tons. Testing for compaction 39 will be at the rate of 5 tests per sublot per WSDOT T 738. I40 41 The sublot locations within each density lot will be determined by the Engineer. For a lot I42 in progress with a CPF less than 0.75, a new lot will begin at the Contractor's request 43 after the Engineer is satisfied that material conforming to the Specifications can be 44 produced. 45 I 1 2023 FEDERAL OVERLAY FEDERAL AID#STBGUL-2715(011) I WO#3788 March 2,2023 SP-87