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Warm Mix Asphalt Technical Committee Meeting Agenda

Working Session # 7 Tuesday, May 10, 2016 2:05PM – 3:05PM

Action items are below in red Please complete the electronic attendance sheet

1) 2:05PM-2:10PM: Call to Order and Introductions 2) 2:10PM-2:15PM: Review of Current Technical Committee Members (Insert

membership list from NTPEP website) 3) 2:15PM-2:25PM: Brief summary of the technical committee (for those states

who do not participate in quarterly calls or who are new to NTPEP) • This technical committee is responsible for evaluation of additives and

technologies that are used to produce warm mix asphalt by performing testing on asphalt with the additive/technology and comparing results with asphalt not using the additive/technology to determine whether the WMA performs as well as a comparable HMA.

4) 2:25PM-2:35PM: Review of Outstanding Action Items and Negative Vote 5) 2:35PM-2:40PM: Update-Program Status

• There are three submittals at this point. Two versions of Rediset and Evotherm.

• WI has told their manufactures they will have to go through NTPEP. There were 24 manufactures on their QPL and only three submitted products to NTPEP. ACTION ITEM: Barry will be at the SOM 2b meeting and will inform people that their products need to go through NTPEP.

6) 2:40PM-2:45PM: Discuss DataMine Items to Bring to DataMine Session on Wednesday, May 11th

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• There has been a lot of data mine updates for datamine 3.0. ACTION ITEM: Vince will send everyone the data that will be collected.

7) 2:45PM-2:55PM: Industry Concerns 8) Ingevity: Is there any merit in attaching WMA sustainability to SCOE to get

recognized? • Barry was not aware that this existed and at this point they should be aware

of each other moving forward in the future and he believes this may become an issue in years to come. The committee will keep an eye on what they are doing to ensure they are not going down two different paths. ACTION ITEM: Katheryn Malusky mentioned a possible partnership of SCOE with NTPEP. AASHTO has monthly meetings between committees to see how they can work together so this can be an opportunity.

9) Section 15 of the work plan states that samples with the WMA additives shall be prepared at reduced temperatures recommended by the manufacture. What will happens of the reduced temperature does not fall within the definition of a warm mix asphalt? The work plan defines WMA as a reduction of 50 degrees. • There has been a lot of disagreement on what makes a warm mix and this

definition was taken from an FHWA publication. • The technical committee will accept any reduced temperature as a warm

mix. • The work plan addresses foaming and additive warm mix. Technologies such

as foaming will perform tests on plant produced mix which uses the WMA technology at a lower temperature with plant mix using the same materials without use of the WMA technology at the normal HMA temperature to provide a direct comparison of materials.

• The temperature will be recorded in datamine and the state can look at the results and make a decision based on the temperature if they think it is a warm mix or not.

• Jim Trepanier stated that in IL warm mix is produced below 270. He would like to allow the state to use the datamine info to decide if they want to use it and not try to define what a WMA is.

10) Will MSCR graded binder be accepted. • ACTION ITEM: Vince will check and see if the Jnr and percent recovery are

in datamine. (Post meeting note: both Jnr and percent recovery are in datamine)

11) Bulk specific gravity by Corelock • Ingevity would like Corelock to be an option for bulk specific gravity • There currently is not a maximum amount of absorption allowed in the work

plan. If one was set the need for the Corelock could be removed. 12) Mix design optimized for HMA may not necessarily be optimized for WMA.

Consideration should be given to adjusting volumetrics for WMA from the

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HMA mix design to take advantage of performance optimization due to the WMA technology.

13) Some states are doing WMA studies as part of SHRP2. The committee has had discussions on working with the SHRP2 program, but no steps have been taken to share results between the two programs.

14) It might be worth looking into adding antistrip additives to this TWG. Would any state be interested and should this TC be tasked with looking into it? • Jim Trepanier thought it would be great but very difficult because the

antistrip relays on the type of mix. • Merrill Zwanka suggested just looking at the fingerprint and not at the

performance. • A TSR should be looked at and verify it does not reduce the dry strength.

15) How many states should consider having the technical committee look into antistripping? • On a survey that was sent out to states there was a lot of interest in the

technical committee looking into antistripping. However, during the meeting not many of the states were interested.

• Most antistrip is project specific it is very difficult for this committee to come up with a meaningful result.

• It was also a worry by some states that looking into antistrip might turn into a research committee because there are so many mix variables that can affect efficacy of products.

• Oak mentioned that MO DOT has an antistrip list and they check the effect on the dry strength. A possible start could be by contacting states and see what they look for.

16) How are plant foamers replicated in the lab? • They will cost more for testing because they will have to be plant produced.

A plant will have to make both a WMA and a HMA out of the same material. The testing that is down will then compare the hot mix to the warm mix. Someone in the state will compact the samples immediately then the compacted specimens will be sent for testing. The sample should not have to be reheated.

17) The three products right now are additives. No foaming technologies have been submitted. Also only neat asphalt is being used no modified asphalt or recycled materials are being used in the asphalt mix.

18) Wayne Rilko will be replacing Tanya Nash and the FL dot will be the third

party laboratory performing the testing.

19) Will the three products submitted now use datmine 3.0?

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• The data will be uploaded on datamine 2.0. However it will use the same data entry form as datamine 3.0 so that when we switch to datamine 3.0 in January the data can be easily migrated.

20) 2:55PM-3:00PM: Open Discussion

21) 3:00PM-3:05PM: Review of Action Items for 2016

Name Agency Name Designation Voting

Cowsert, Jack E. North Carolina DOT Chair Yes

Paye, Barry C Wisconsin DOT Vice Chair Yes

Glick, Vince AASHTO Liaison No

Eames, Alexandra Louise AASHTO AASHTO Staff No

Ingram, Steven Alabama DOT Member Yes

Saboundjian, Steve Alaska DOT&PF Member Yes

Goldbaum, Jay Colorado DOT Member Yes

Nash, Tanya M Florida DOT Member Yes

Charoenpap, Richie Louisiana DOTD Member Yes

Burke, Gloria L Maryland DOT Member Yes

Meyerhoff, Mike Missouri DOT Member Yes

Metcalfe, Ross Oak Montana DOT Member Yes

Pan, Changlin Nevada DOT Member Yes

Selkinghaus, Cliff B South Carolina DOT Member Yes

Hall, Heather Tennessee DOT Member Yes

Shi, Bin Utah DOT Member Yes

Corrigan, Matthew FHWA Ex Officio No

McDonald, Maggie Massachusetts DOT Member No

Oesch, Dan Missouri DOT Member No

Woods, Victoria Lynn InVia Pavement Technology Other No

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Product InformationSubmittal Year Import From eAppNTPEP Number Data EntryManufacturer Name Calculated DataProduct Name Header/No Data EntryProduct CategoryProduct UseProduct ApplicationProduct DescriptionProduct CategoryBase MaterialAppearanceCan the product be used as an extender?Can the product be used as a rejuvenator?Can the product be used as an anti-strip additive?Addition rate to mixAre there any Dilution options?Describe Dilution optionspH@25° C (77° F)Lbs./Gal.@25° C (77° F)

Sample PropertiesMixing Temp.Compaction Temp.Plant / LabWMA Technology (if applicable)

Attributes Unit Control WMAViscosity (T 316) Pa*sOriginal DSR Temp (T 315) ° COriginal DSR G * / sin delta (T315) kPaOriginal DSR phase angle (T315) degreesRTFO DSR Temp (T 315) °CRTFO DSR G*/sin delta (T315) kPaRTFO MSCR, Jnr 0.1 (T 350)

kPa-1

RTFO MSCR, Jnr 3.2 (T 350)kPa

-1

RTFO MSCR, Jnr Diff (T 350) %RTFO MSCR, Recovery @ Jnr 3.2 (T 350) %PAV DSR Temp (T 315) ° CPAV DSR G*sin delta (T315) kPaStiffness (T 313) MPam-value (T 313)

Asphalt Properties (M 320 & M 332)

Attributes Unit Control NMAS (R 35 and Appendix X2 of R 35) mm

ESAL Category (R 35) Million ESAL's

Maximum Specific Gravity (T 209)

Bulk Specific Gravity (T 166)

Air Voids (T 269) %

VMA (M 323) %

VFA (M 323) %

Gyrations (M 323) gyrations

Ndes (R 35) gyrations

Nmax (R 35) gyrations

Attributes Unit Control WMAPercent Passing 3/4" (T 27) %Percent Passing 1/2" (T 27) %Percent Passing 3/8" (T 27) %Percent Passing #4 (T 27) %Percent Passing #8 (T 27) %Percent Passing #16 (T 27) %Percent Passing #30 (T 27) %Percent Passing #50 (T 27) %Percent Passing #100 (T 27) %Percent Passing #200 (T 27) %Minus #200 (T 27) %Coarse Aggregate Gsb (T 85)Gravity of Aggregate Gse (T 85)Absorption of Coarse Aggregate (T 85) %Fine Aggregate Gsb (T 84) %Fine Aggregate Gse (T 84) %Absorption of Fine Aggregate (T 84) %Flat & Elongated Particles (D4791) %Sand Equivalent (T 176) %Coarse Aggregate Angularity Fractured Faces (T 335) %Uncompacted Voids (T 304)Sulfate Soundness (T 103) - A or B? %LA Abrasion (T 96) %Micro Deval (T 327) %Geologic SourceQuarry or PitFormation

Aggregate Properties

Mixture Properties

Type of Rock

TSR (T283)Attributes Unit Pill 1 Pill 2 Pill 3Gmm (T 209)Dry Gmb (T 166) Dry Air Voids (T 269) %Diameter - dry mmThickness - dry mmDry ITS (T 283) lbsConditioned Gmb (T 166) Conditioned Air Voids (T 269) %Saturation (T 283) %Diameter - Conditioned mmThickness - Conditioned mmConditioned ITS (T 283) lbsTSR (T 283) %

Attributes Unit Control WMAHamburg Wheel (T 324)Hamburg (T324) Rut Depth mmHamburg (T324) Cycles cyclesStripping Inflection Point (SIP)Bulk Specific Gravity (T166) GmbAir Voids (T 269) %Temp Degrees CDeviator Stress psiConfining Stress psiAve FnSD FnAve StrainSD Strain

Control

Performance Testing

Average Pill 1 Pill 2 Pill 3 AverageWMA

First Name Last Name Title Email PhoneMario Paredes Senior Research Engineer mparedes@tri-env.com 352-231-0992Julie Lamberson julie.lamberson@modot.mo.govJerry Britt jerry@ennisflint.com 601-757-7008Maribel Wong mwong@aashto.org 202-624-3559Nikita Reed nikita.reed@dot.state.fl.us 352-955-6654Bin Shi bshi@utah.gov 801-965-4303Ernay Robinson-Perry erobinson@dot.ga.gov 404-796-0010Ting Nahrwold tnahrwold@indot.in.gov 317-232-5080Ryan Fragapane rfragapane@aashto.org 202-624-3632Dave Fogg davefogg@econopave1000.com 260-443-5433Dennis Warren warrend7@michigan.gov 517-322-5665Ross Oak Metcalfe rmetcalfe@mt.gov 406-444-9201James Trepanier james.trepanier@illinois.gov 217-782-9607John Buchanan jbuchanan@mt.govMerrill Zwanka zwankame@scdot.org 803-737-6682Scott Hughes scott.hughes@illinois.gov 217-782-7208Jozsef Simon joe.t.simon@tn.gov 615-350-1011Allen Gallistel allen.gallistel@state.mn.us 651-366-5545Natalie Roskam Ncdot nroskam@ncdot.govBrennan Roney broney@dot.ga.gov 404-608-4816Sabra Gilbert-Young sgilbert-young@dot.state.nv.us 775-888-7894Maysa Hanna mhanna@azdot.gov 602-712-8888LaDonna Rowden IL DOT - Engineer Of Tests ladonna.rowden@illinois.gov 217-782-4423Richie Charoenpap richie.charoenpap@la.govJohn Rublein john.rublein@dot.wi.gov 608-246-7953Temple Short shorttk@scdot.org 803-737-6648Kevin Sablan ksablan@aashto.orgJohn Bassett john.bassett@txdot.gov 512-506-5881J. Francisco Gudiel francisco.gudiel@la.gov 225-248-4111Guohua Lian glian@dot.ga.gov 404-608-4824Kevin Palmer kevin.palmer@ahtd.ar.gov 501-569-5185Kenny Anderson kbanderson@indot.in.gov 317-610-7251 x203Raymond Rowden raymond.t.rowden@gmail.com 217-622-5407

Douglas Gayne doug.gayne@maine.gov 207-624-3268Heather Hall heather.purdy.hall@tn.gov 615-418-3309Katheryn Malusky kmalusky@aashto.org 202-624-3695Kyle Baranowski kyle.b.baranowski@wv.govJay Goldbaum jay.goldbaum@state.co.us 303-398-6561Michael Sullivan msullivan@mdot.ms.gov 601-359-1666Randy Pace rpace@ncdot.gov 919-329-4000Rodney Klopp rklopp@pa.gov 717-787-7827Gerald Peterson jerry.peterson@txdot.gov 512-506-5821Kelly Morse kelly.morse@illinois.gov 217-782-7218Jack Cowsert jcowsert@ncdot.gov 919-329-4030Brian Hunter bhunter@ncdot.gov 919-329-4092Susan Dearborn sdearborn@dot.state.nh.us 603-271-1628Barry Paye barry.paye@dot.wi.gov 608-246-7945Victoria Woods Technical Manager victoria.woods@ingevity.com 573-619-2903Brian Johnson bjohnson@amrl.comSamuel Frederick sjfrederick@ncdot.gov 919-814-2220Vince Glick vglick@aashto.org 202-624-7743Kevin Jones kevin.jones@dot.iowa.gov 515-239-1237Ethan Griffiths ethan.griffiths@itd.idaho.gov 208-334-8556Andy Bennett bennetta@michigan.gov 517-322-5043Katie Overton koverton@chemstation.com 937-294-8265