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

1 The Contracting Agency may sample each aggregate component prior to introduction to 2 the weigh batcher or as otherwise determined by the Engineer. Each component will be 3 sieve analyzed separately in accordance with WSDOT FOP for WAQTC/AASHTO Test 4 Method T-27/11. All aggregate components will be mathematically re-combined by the 5 proportions (percent of total aggregate by weight) provided by the Contractor on 6 Concrete Mix Design Form 350-040. 1 7 8 9-03.8(1) General Requirements 9 The first paragraph up until the colon is revised to read: 10 11 Preliminary testing of aggregates for source approval shall meet the following test 12 requirements: 13 14 The list in the first paragraph is supplemented with the following: 15 16 Sand Equivalent 45 min. 17 18 The following new paragraph is inserted after the first paragraph: 19 20 Aggregate sources that have 100 percent of the mineral material passing the No. 4 21 sieve shall be limited to no more than 5 percent of the total weight of aggregate. 22 23 9-03.8(2) HMA Test Requirements 24 The second paragraph (up until the colon) is revised to read: 25 26 The mix design shall produce HMA mixtures when combined with RAP, RAS, coarse 27 and fine aggregate within the limits set forth in Section 9-03.8(6) and mixed in the 28 laboratory with the designated grade of asphalt binder, using the Superpave gyratory 29 compactor in accordance with WSDOT FOP for AASHTO T 312, and at the required 30 gyrations for N initial, N design, and N maximum with the following properties: 31 32 The third paragraph is revised to read: 33 34 The mix criteria for Hamburg Wheel-Track Testing and Indirect Tensile Strength do not 35 apply to HMA accepted by commercial evaluation. 36 37 9-03.8(3)B Gradation — Recycled Asphalt Pavement and Mineral Aggregate 38 This section is supplemented with the following: 39 40 For HMA with greater than 20 percent RAP by total weight of HMA the RAP shall be 41 processed to ensure that 100 percent of the material passes a sieve twice the size of 42 the maximum aggregate size for the class of mix to be produced. 43 44 When any amount of RAS is used in the production of HMA the RAS shall be milled, I 45 crushed or processed to ensure that 100 percent of the material passes the 1/2 inch 46 sieve. Extraneous materials in RAS such as metals, glass, rubber, soil, brick, tars, 47 paper, wood and plastic shall not exceed 2.0 percent by mass as determined on 48 material retained on the No. 4 sieve. 49 50 9-03.14(3) Common Borrow 51 This section is revised to read: 52 111 AMENDMENTS TO THE 2014 STANDARD SPECIFICATIONS BOOK Revised: 8/3/15