1500 1ST ST RAIL BARGE FACILITY 2018-01-01 MF Import

I � 1 such materials in the amounts required for the designated mix. Mineral materials 2 include coarse and fine aggregates, blending sand, and mineral filler. � 3 4 The Contractor shall have the option of utilizing recycled asphall pavement (RAP) in 5 the amount up to 20 percent of total aggregate weight in combination with new i 6 aggrcc�ate in the production oi HA4A. The RAP may be from HMA removed under 7 the contract, if any, or old HMA from an existing stockpile. Recycled materials shall 8 not be used in HMA Class D. 9 � 10 When aggregates or a source for the production of aggregates is provided by the 11 Contracting Agency, the approximate percentage of asphalt binder required in the 12 mixture for the particular class of pavement will be set forth in the special provisions. j 13 The percentage is based upon a midline gradation mix design for the source � 14 provided. 15 I 16 The grade of asphalt binder shall be as required by the contract. Prior to the 17 submittal of the mix design, the Contractor shall provide a written designation of the 18 grade of PG asphalt binder to be used. The Contractor may propose the ` 19 substitution of alternate grades of perfortnance grade (PG)asphalt binder at no cost � 20 to the Contracting Agency. The proposal will be approved if the proposed altemate 21 asphalt binder has an average 7-day maximum pavement design temperature that � 22 is equal to or higher than the specified asphalt binuer and has a minimum pavement 23 design temperature that is equal to or lower than the specified asphalt binder. The 24 substituted alternate grade of asphalt binder shall be used in all HMA contract items 25 of the same class and originally specified grade of asphalt binder. Blending of f26 asphalt binder from different sources is not permitled. 27 28 Production of aggregates shall comply with the requirements oi Section 3-01. I 29 � 30 Preparation of stockpile site, the stockpiling of aggregates, and the removal of 31 aggregates irom stockpiles shall comply with the requirements of Section 3-02. } 32 ( 33 5-04.3 Construction Requirements 34 5-04.3(1) N'MA Mixing Plant � 35 Plants used for the preparation of HMA shall conform to the following � 36 requirements: 37 � 38 1. Equipment for Preparation oi Asphalt Binder. Tanks for the storage 3g o( :isphalt binder shall be equipped to neat and hold the material at 40 the required temperatures. The heating shall be accomplished by � 41 steam coils, electricity, or other approved means so that no flame shall 42 be in contact with the storage tank. The circulating system for the 43 asphalt binder shall be designed to ensure proper and continuous � 44 circulation during the operating period. A valve for the purpose of 45 sampiing the asphalt binder shall be placed in either the storage tank 46 or in the supply line to the mixer. 47 y 48 2. Thermometric Equipment. An armored thermometer, capable of � 49 detecting temperature ranges expected in the HMA mix, shall be fixed 50 in the asphalt binder feed line at a location near the charging valve at � Port of Everett FAWAT-03-0J9 Satellite RaillBarge Transfer Facflity Final Port Reviaw DraR `� Phase 1:Pler Construction 49 15 Mareh 2005 1