Lakeside Industries, Inc. 4/29/2026

2026 Pavement Maintenance Overlay Special Provisions PW# 3860 SP - 65 March 5, 2026 1 2 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 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 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 shall 11 generally be the Contractors option, provided the specified densities are attained. Unless 12 the Engineer has approved otherwise, rollers shall only be operated in the static mode 13 when the internal temperature of the mix is less than 175F. Regardless of mix 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 17 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 19 than 90 percent of the theoretical maximum density. At the Engineers discretion, the 20 Engineer may evaluate the HMA pavement for low cyclic density, and when doing so will 21 follow WSDOT SOP 733. A $1500 Cyclic Density Price Adjustment will be assessed for 22 any 500-foot section with two or more density readings below 90 percent of the theoretical 23 maximum density. 24 25 5-04.3(10)C Vacant 26 27 5-04.3(10)D HMA Nonstatistical Compaction 28 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 31 acceptance testing performed by the Contracting Agency dividing the project into 32 compaction lots. 33 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 36 for each Job Mix Formula placed. Only one lot per JMF is expected. A sublot shall be 37 equal to one days 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. 40 41 The sublot locations within each density lot will be determined by the Engineer. For a lot 42 in progress with a CPF less than 0.75, a new lot will begin at the Contractors request 43 after the Engineer is satisfied that material conforming to the Specifications can be 44 produced. 45 46 HMA mixture accepted by commercial evaluation and HMA constructed under conditions 47 other than those listed above shall be compacted on the basis of a test point evaluation