Ariston Pacific, Inc. 5/9/2016 - Laserfiche WebLink

I 1 materials, RAP, RAS and 100 grams of recovered asphalt residue from the RAP and I 2 RAS that are to be used in the HMA production. The Contracting Agency will use these 3 samples to evaluate the mix design for approval on the QPL in accordance with 4 WSDOT Standard Practice QC-8. 5 I6 5-04.3(7)A3 Commercial Evaluation 7 This section is revised to read: 1 8 9 Approval of a Commercial Evaluation mix design for listing on the QPL will be based on 10 a review of the Contractor's submittal of WSDOT Form 350-042EF for conformance to 11 the requirements of Section 9-03.8(2). Testing of the HMA by the Contracting Agency I 12 for mix design approval is not required. Mix designs for HMA with greater than 20 13 percent RAP by total weight of HMA or any amount of RAS may be evaluated in 14 accordance with Section 5-04.3(7)A2. I 15 16 For the Bid item Commercial HMA, the Contractor shall select a class of HMA and 17 design level of Equivalent Single Axle Loads (ESAL's) appropriate for the required use. I 18 19 5-04.3(8) Mixing 20 The first sentence of the second paragraph is revised to read: I 21 22 When discharged, the temperature of the HMA shall not exceed the optimum mixing 23 temperature by more than 25°F as shown on the reference mix design report or as 24 approved by the Engineer. I25 26 The last paragraph is supplemented with the following new sentence: 27 1 28 After the required amount of mineral materials, RAP, RAS, new asphalt binder and 29 asphalt rejuvenator have been introduced into the mixer the HMA shall be mixed until 30 complete and uniform coating of the particles and thorough distribution of the asphalt I 31 binder throughout the mineral materials, RAP and RAS is ensured. 32 33 I 34 5-04.3(8)A4 Definition of Sampling and Sublot 35 The second sentence of the second paragraph is revised to read: 36 I 37 38 The sublots shall be approximately uniform in size with a maximum sublot size based on original Plan quantity tons as specified in the following table. 39 I 40 This section is supplemented with the following new table: 41 HMA Original Plan Quantity (tons) Sublot Size (tons) <20,000 1,000 U 20,000 to 30,000 1,500 >30,000 2,000 42 1 43 5-04.3(8)A7 Test Section — HMA Mixtures 44 This section is revised to read: 45 I 46 For each class of HMA accepted by statistical evaluation with 20 percent RAP or less by 47 total weight of HMA and no RAS, the Contractor may request a single test section to 48 determine whether the mixture meets the requirements of Section 9-03.8(2) and 9- I I AMENDMENTS TO THE 2014 STANDARD SPECIFICATIONS BOOK Revised: 8/3/15