PAPA Regional Meetings 2013

1. PAPA Regional Meetings2013

2. Meetings with PAPA in 2012: • January • Remove and Replace Defective Material • May • Table “H” instituted after PAPA meeting • June and August • Specification change discussions • November • Meeting with Dr. James Burati • January 2013 – NEW SPECIFICATION

3. Annual HMA Placement

5. 2012 HMA Summary • Number of Projects – 33 • Total Lots - 1178 • Passing – 1077 (91 %) • Failures - 101 (9 %) • Total JMF’s – 76 • Number of Plants - 24

6. 2012 HMA Summary • LOT Failures – 101 • AC Low –17 • AC High –13 • Voids Low –39 • Voids High – 37 • #200 Low – 3 • #200 High - 5

7. 2012 HMA Summary • Loose Box Samples Tested – 100 • Passing – 71/Failed – 29 • AC Low – 0 • AC High – 3 • Voids Low – 20 • Voids High – 5 • #200 Low – 0 • #200 High - 2

8. 2012 HMA Summary • 12.5 mm – (451) Lots / 37 Failed • AC Low – 5 • AC High – 8 • Voids Low – 15 • Voids High – 12 • # 200 Low – 1 • #200 High - 2

9. 2012 HMA Summary • 19 mm – (422) Lots / 38 Failed • AC Low – 8 • AC High – 4 • Voids Low – 13 • Voids High – 15 • # 200 Low – 0 • #200 High - 0

10. 2012 HMA Summary • 9.5 mm – (164) Lots / 22 Failed • AC Low – 2 • AC High – 0 • Voids Low – 10 • Voids High – 9 • # 200 Low – 2 • #200 High - 3

11. 2012 HMA Summary • 25 mm – (141) Lots / 4 Failed • AC Low – 2 • AC High – 1 • Voids Low – 1 • Voids High – 1 • # 200 Low – 0 • #200 High - 0

12. 2013 – Specification Changes • Release Material to Plant Operator or Lab Technician • Eliminated #8 Sieve for Acceptance • 6” x 4 ¼” x 9” Box Sample Size • Provide Storage Shed / Field Samples • Core Density Shall not Exceed 97%

13. 2013 - Specification Changes • Eliminated 19mm binder with 76-22 • Increased Wearing RAP to 15% • Eliminated F.A. “E” or “H” Requirement • Target Gmb Plugs at 115mm (+/-)1.0mm • Rich Bottom Voids – Design at 4.0% • Additional AC to achieve 2.5% Voids • If Plant or Box Samples Fail for 3 Consecutive Days / Review JMF

14. 2013 • HMA - Back to Basics: • Plant and Field Sampling (PTM 746) • T-209 , T-312 , T-166 • Equipment • 8” / 12” sieves • AASHTO T-30 – Max of 200g on each sieve smaller than the No. 4

15. AASHTO T-209 • Removed air trapped in the sample - under pressure (27.5 ±2.5 mm Hg) and maintain for 15±2 min • Measure water temp and IF different from (77 ±2°F) use adjustment in Section 8.1

16. AASHTO – T-312 • Place compaction Mold and Base Plate in an oven at the required compaction temp. for a minimum of 30 mins. prior to the estimated beginning of compaction. • Place the mixture in the mold in one lift. • Before reusing the Mold, place it in the oven for at least 5 mins.

17. PTM 715 / AASHTO T-166 • T-166 (Method A) • Immerse individual specimen for 4±1min.and record the immersed mass • Remove specimen from the bath, damp-dry specimen by blotting with damp towel as quickly as possible (not to exceed 5 s) and determine surface-dry mass

18. PTM -746 (Hauling unit) • EQUIPMENT: • A flat bottom, high sided scoop • Putty knife for scraping the INSIDE of the scoop • Starting low on the pile and extending upward, sample the mixture by creating an approximate 2’ long and 3” to 4” deep vertical furrow.

19. PTM -746 (Hauling unit con’t) If the mixture is sampled from at least two places in the truck, place the material removed in this manner on a mixing board, thoroughly mix, Form into a flat pile and quarter to provide a representative sample of the required size. Scrape the INSIDE of the scoop at eachtransfer point to incorporate any fines sticking to the inside of the scoop.

22. AASHTO R-47 Reducing Samples of HMA to Testing Size

23. Mechanical Splitter for use in quartering HMA samples.

24. HMA Issues on Data Input • Wrong #200 C/F used when calculating gradation. When corrected – several gradations were out of Spec. • Gradation on lower screen showed morematerial passing than previous screen • Incorrect tolerance band used for gradations – correct band showed Six sieves with Deviations

25. HMA Issues on Data Input • Volumeter calibration changed Dry weight by 900g however the Volume remained the same? • Gmb plugs indicated the Dry specimen weight was heavier than the SSD resulting in negative absorption – if you reverse the weights the Va failed • Dry and SSD weights were exactly the same – no absorption? Field cores too!

26. HMA Issues on Data Input • Wrong Gmm used for density cores • 2.435 was used for 95.4% density. • Actual was 2.534 for 91.7% (Failure) • 2 Gmb plugs had same weight • 1 plug absorbed 7g • 1 plug absorbed 23g • SAME Va % ???

27. HMA Issues on Data Input • Gmb plug heights outside of the 110mm-120mm range yet still showed passing Va% • Gmb plugs always had 5g – 6g H2O absorption- no matter the plug weight or height variances

28. PTC Materials Data Library E-DEL (Electronic-Data Entry Log) Bituminous –Data Entry Log (Bit – DEL) Concrete – Data Entry Log (Con-DEL) Aggregate – Data Entry Log (Agg-DEL)

30. 2014 • PAPA website: • BIT DEL program • HMA Design Software for 2013 Designs • Materials Lab in Somerset : APPROVED • JMF approval • Producer to Provide Aggregate/Oil/Design Data • PTC Materials to Proof Design • Database for Future Designs

31. PTC Materials Staff • East:(300-358 & A-20 – A-130) • Steve Havrilla – shavrill@paturnpike.com • Central – (189-300) • Brian Wible –bwible@paturnpike.com • West – (0-189) • Chris Forry- cforry@paturnpike.com

32. Our Company is Built on People – those who Work for Us and those We do Business with.Harvey S. Firestone

33. THANK YOU ! tdreher@paturnpike.com