Kamins Construction Inc Pacific Ave to Interurban Trail Bicycle Safety

I 1 3. Changes in modifiers used in the asphalt binder. 2 3 5-04.2(2)B Using Warm Mix Asphalt Processes 4 This section, including title, is revised to read: 5 6 5-04.2(2)B Using HMA Additives 7 The Contractor may, at the Contractor's discretion, elect to use additives that reduce the 8 optimum mixing temperature or serve as a compaction aid for producing HMA. Additives 9 include organic additives, chemical additives and foaming processes.The use of Additives 10 is subject to the following: 11 12 • Do not use additives that reduce the mixing temperature in accordance with 13 Section 5-04.3(6) in the production of High RAP/Any RAS mixtures. 14 15 • Before using additives, obtain the Engineer's approval using WSDOT Form 350- 16 076 to describe the proposed additive and process. 17 18 5-04.3(3)A Mixing Plant ' 19 Item number 5 of the first paragraph is revised to read: 20 21 5. Provide HMA sampling equipment that complies with FOP for AASHTO T 168: 22 23 • Use a mechanical sampling device accepted by the Engineer, or 24 25 • Platforms or devices to enable sampling from the truck transport without entering 26 the truck transport for sampling HMA. 27 28 5-04.3(4) Preparation of Existing Paved Surfaces 29 The first sentence of the fourth paragraph is revised to read: 30 31 Unless otherwise allowed by the Engineer, use cationic emulsified asphalt CSS-1, CSS- 32 1 h, or Performance Graded (PG) asphalt for tack coat. 33 34 5-04.3(6) Mixing 35 The first paragraph is revised to read: 36 37 The asphalt supplier shall introduce recycling agent and anti-stripping mg additive, I. the 38 amount designated on the QPL for the mix design, into the asphalt binder prior to shipment 39 to the asphalt mixing plant. 40 41 The seventh paragraph is revised to read: 42 43 Upon discharge from the mixer, ensure that the temperature of the HMA does not exceed 44 the optimum mixing temperature shown on the accepted Mix Design Report by more than 45 25°F, or as allowed by the Engineer. When an additive is included in the manufacture of 46 HMA, do not heat the additive(at any stage of production including in binder storage tanks) 47 to a temperature higher than the maximum recommended by the manufacturer of the 48 additive. 49 50 5-04.3(7) Spreading and Finishing 51 The last row of the table is revised to read: 52 CITY OF EVERETT AMENDMENTS PACIFIC AVENUE TO INTERURBAN TRAIL BICYCLE SAFETY PROJECT 8/12/2019 STATE FUND#HLP PB17(014); COE#PW3688 Page AM-20