Mix Design Requirements for Thin Lift 6.3 mm Asphalt Wearing Course AGGREGATE GRADATION REQUIREMENTS, PERCENT PASSING Sieve Size Min. – Max. 9.5 mm ( 3/8 inch) 100 Min. 6.3 mm ( 1/4 inch) 90-100 4.75 mm ( No. 4 ) 0-85 2.36 mm ( No. 8 ) 37-55 300 µm ( No. 50 ) 8-25 75 µm ( No. 200 ) 3-10 VOLUMETRIC DESIGN REQUIREMENTS Design Gyrations (N design ) for All Specified Ranges of Design ESALs 75 Voids in Mineral Aggregate (VMA), Min. % , for All Specified Ranges of Design ESALs 16.5 Design Air Voids (Va), %, for All Specified Ranges of Design ESALs 3.5-4.0 Binder Draindown (AASHTO T 305), % Maximum, for mixture with greater than 7.0% Asphalt Content 0.3% Binder Grade for All Specified Ranges of Design AASHTO M 332 PG 64E-22
1.a Producer QC Plan . Section 413.2(e)1.a.
1.b Plant Technicians. Section 413.2(e)1.b .
1.c Annual JMF Verification. Section 413.2(e)1.c except conform to the single and multiple sample tolerances in Section 412.2(e)1.d Tables B and C .
1.d Production. Section 413.2(e)1.d except as follows :
1.d.1 Apparent Moisture Content. Section 413.2(e)1.d.1.
1.d.2 Asphalt Content. Include in the producer QC Plan a frequency of obtaining mixture samples according to PTM No. 1 and performing asphalt content tests to verify that the mixture conforms to the tolerances of Table B. Test the samples according to either PTM No. 757, PTM No. 702, or PTM No. 742. After obtaining a minimum of three test results, determine compliance with the multiple sample tolerances in Table B. After obtaining five or more test results, determine compliance with the multiple sample tolerances in Table B using the running average of the last five consecutive test results. Printed ticket results may be used in place of laboratory test results for QC of asphalt content of the mixture if the producer is currently approved to use printed tickets according to Bulletin 27. During mixture production, maintain 90% of printed ticket results for each day of production within 0.2 percentage points of the JMF.
1.d.3 Gradation. Sample the completed mixture, the combined aggregate from the hot bins of a batch plant , or the combined aggregate belt of a drum plant, according to PTM No. 1 and at the frequency in the producer QC Plan. If mineral filler is used in the mixture, determine gradation by testing samples of the completed mixture.
• Test the completed mixture according to PTM No. 757 or according to PTM No. 702 and PTM No. 739.
• Test combined aggregate samples according to PTM No. 743.
Produce a mixture within the tolerances of Table B. Determine compliance with the multiple-