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CITY OF EVERETT SPECIAL PROVISIONS <br /> <br />Beverly Lake Water Quality Retrofit Division 5 – SURFACE TREATMENTS August 2023 <br /> <br />AND PAVEMENTS <br />WO No. – UP3745 SP - 171 <br />5-04.3(10)B HMA Compaction – General Compaction Requirements <br />Compact mixture only when the mixture is in the proper condition so that <br />no undue displacement, cracking, or shoving occurs. Compact areas <br />inaccessible to large compaction equipment by other mechanical means. <br />Remove and replace HMA that becomes loose, broken, contaminated, <br />shows excess or deficiency of asphalt, or is in any way defective, with <br />new hot mix. Immediately compact to conform to the surrounding area. <br />Provide type of rollers and their relative position in the compaction <br />sequence to attain the specified densities. Operate rollers shall only in <br />the static mode when the internal temperature of the mix is less than <br />175°F unless Engineer approves otherwise. Do NOT operate a roller, <br />regardless of mix temperature, in a mode that results in checking or <br />cracking of the mat. Only operate rollers in static mode on bridge decks. <br />5-04.3(10)C HMA Compaction – Cyclic Density <br />Low cyclic density areas are defined as spots or streaks in the pavement <br />that are less than 90 percent of the theoretical maximum density. At the <br />Engineer’s discretion, the Engineer may evaluate the HMA pavement for <br />low cyclic density and when doing so will follow WSDOT SOP 733. A <br />$500 Cyclic Density Price Adjustment will be assessed for any 500-foot <br />section with two or more density readings below 90 percent of the <br />theoretical maximum density. <br />5-04.3(10)D Vacant <br />5-04.3(10)E HMA Nonstatistical Compaction <br /> <br />5-04.3(10)E1 HMA Nonstatistical Compaction – Lots and <br />Sublots <br />City will perform acceptance testing on HMA compaction that is <br />accepted by nonstatistical evaluation by dividing the project into <br />compaction lots. <br />A lot is represented by randomly selected samples of the same mix <br />design that will be tested for acceptance. A lot is defined as the total <br />quantity of material or work produced for each Job Mix Formula <br />placed. Only one lot per JMF is expected. A sublot is equal to one <br />day’s production or 400 tons, whichever is less, except; the final sublot <br />will be a minimum of 200 tons and may be increased to 800 tons. <br />Testing for compaction will be at the rate of 5 tests per sublot per <br />WSDOT T 738. <br />Engineer will determine the sublot locations within each density lot. <br />For a lot in progress with a CPF less than 0.75, Contractor may <br />request a new lot begin after the Engineer is satisfied that material <br />conforming to the Specifications can be produced. <br />Compact HMA mixture accepted by commercial evaluation and HMA <br />constructed under conditions other than those listed above on the <br />basis of a test point evaluation of the compaction train. Perform the <br />test point evaluation in accordance with instructions from the <br />Engineer. Use the number of passes with an approved compaction <br />train required to attain the maximum test point density on all <br />subsequent paving.