SECTION 1028 -- SUPERPAVE ASPHALTIC CONCRETE

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Table 1028.11 Gyratory Compaction Effort (Average Design High Air Temperature
Table 1028.14 Voids Filled with Asphalt Criteria at Ndes Asphaltic Concrete Type SPS Design VFA, Percent a. The Contractor shall take samples at locations identified by the Engineer, according to the NDR statistically-based procedure. The samples - 672 - N/A SP0 70 – 80 SP1 70 – 80 SP2 65 – 78 SP3 65 – 78 SP4 65 – 75 SP5 65 – 75 2. The Contractor shall make Mix adjustments when: a. Air voids, VMA, VFA, FAA, CAA or Binder content do not meet the currently approved criteria. b. Surface voids create a surface and/or texture which does not meet the criteria of Sections 502 and 503 in the 1997 English and Metric Edition of the Standard Specifications. c. Pavement does not meet any other design criteria. d. Rutting occurs. 3. Mix adjustments at the plant are authorized within the limits shown in Table 1028.15 without redesigning the initially approved mix: a. The adjustment must produce a mix with the percent air voids required. b. All adjustments must be reported to the Engineer. Table 1028.15 Sieve Size Aggregate Adjustments 1 inch (25 mm), 3/4 inch (19 mm), 1/2 inch (12.5 mm), 3/8 inch (9.5 mm) No. 8 (2.36 mm), No. 16 (1.18 mm), No. 30 (600 µm), No.50 (300 µm) Adjustments ± 6% ± 4% No. 200 (75 µm) ± 2% c. The adjustment values in Table 1028.15 will be the tolerances allowed for adjustments from the NDR verified mix design “Combined Gradation” target values which resulted from production or mix design adjustments, but cannot deviate from Superpave gradation criteria, or pass through the restricted zone when the mix FAA value is less than 45. 4. Sampling and Testing:
Page 1 and 2: SECTION 1028 -- SUPERPAVE ASPHALTIC
Page 3 and 4: (2) The Contractor shall not begin
Page 5 and 6: (VI) FAA AASHTO T 304 CAA ASTM D 58
Page 7 and 8: of using the more stringent require
Page 9 and 10: Table 1028.08 Gradation Control Poi
Page 11: (10) USA Standard Series Sieves for
Page 15 and 16: (iii) If an individual specimen res
Page 17 and 18: (ii) Ignition oven or cold feed agg
Page 19 and 20: 7. Acceptance and Pay Factors a. Ac
Page 21 and 22: c. Either 4 inch (100 mm) or 6 inch

SECTION 1028 -- SUPERPAVE ASPHALTIC CONCRETE

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