Minimum asphalt binder content Table C Binder grade PG 64E-22 Stabilizer content Cellulose: 0.2 to 0.4 % by total mix weight Mineral: 0.3 to 0.4 % by total mix weight CR: 0.3 to 1 % by total mix weight Draindown 0.3 % maximum(2)
may allow the minimum VMA to be lowered to a minimum of 17.5%.
at 5F above the desired high production temperature limit in the QC plan, but no higher than 305F.
TABLE C Minimum Asphalt Binder Requirements for SMA Mixtures Combined Aggregate Bulk Specific Gravity Minimum Asphalt Content, % by Total Mix Weight(1) 2.400 - 2.449 7.4 2.450 - 2.499 7.2 2.500 - 2.549 7.1 2.550 - 2.599 7.0 2.600 - 2.649 6.8 2.650 - 2.699 6.7 2.700 - 2.749 6.6 2.750 - 2.799 6.5 2.800 - 2.849 6.4 2.850 - 2.899 6.3 2.900 - 2.949 6.2 2.950 - 2.999 6.1 3.000 - 3.049 6.0
stabilizing agent, the DME/DMM may allow the Minimum Asphalt Content to be 0.30 lower than the values in Table . C
Perform draindown testing according to AASHTO T 305 using a 1- hour reading. Design a mix meeting the tolerances specified in Table B. Design each SMA mix within the job- mix tolerances according to Tables B and C. Test the materials, proportions, and the mixture at the asphalt plant laboratory. Submit a copy of each completed JMF, signed by a certified Asphalt Level 2 plant technician, to the DME/DMM at least 3 weeks before the planned start of mixture production. Include a list of all material sources and the asphalt producer in the JMF. Provide the calibration factors (C ƒ and 200 C ƒ) according to PTM No. 757 with the JMF. Do not start mixture production until after the DME/DMM reviews the JMF. Submit a new JMF with a change in material sources or if a new JMF is necessary to produce an SMA mixture conforming to this specification.
1.a Producer QC Plan. Section 41 3.2(e)1.a, except RAS/ RAM is not allowed in the mixture.
1.b Plant Technicians. Section 41 3.2(e)1. b with the following additions: All HOLA mixture and density acceptance testing will be performed by Department Representatives certified as Asphalt Level 1 or Level 2 Plant Technicians.
that the mixture conforms to this specification. If the mixture does not conform to the single and multiple sample tolerances according to Tables D and E within 2 days of production, suspend shipping the mixture to the project. Do not ship the mixture to the project until after the Representative reviews and verifies that results Init