The Every Day Counts Initiative

Transcription

1 Warm Mix Asphalt Technologies United States Initiatives Matthew Corrigan, P.E. Asphalt Pavement Engineer Federal Highway Administration Washington DC, USA The collective efforts from highway agencies and industry partners to advance warm mix asphalt technologies as a standard practice has been tremendous. Office of Pavement Technology, FHWA [We] support the development and implementation of warmmix asphalt this will inevitably become the standard practice for asphalt mixture production. Global Asphalt Pavement Alliance WMA is the future of flexible pavements in the U.S. lowering our production and paving temperatures promises improved energy consumption, operations, and quality. Mike Acott, President, NAPA WMA technology provides an important tool to the pavement engineer designers and contractors alike now have a great opportunity to learn more about this promising practice which is revolutionizing the paving industry in North America. Pete Grass, President, Asphalt Institute The Every Day Counts Initiative Selected Innovations (EDC Round 1) Accelerating Technology Deployment Every Day Counts is NOT about inventing the next "big thing". It is about taking effective, proven and marketready technologies and getting them into widespread use. By advancing 21 st century solutions, we can improve safety, reduce congestion and keep America moving and competitive. Moving Ahead for Progress in the 21 st Century Act Provides an array of provisions designed to increase innovation and improve efficiency, effectiveness, and accountability in the planning, design, engineering, construction and financing of transportation projects. Building on FHWA s Every Day Counts initiative, MAP 21 changes will speed up the project delivery process, saving time and money for individuals and businesses, and yielding broad benefits nationwide. Research, Technology Deployment, Training & Education Highway Research & Development $115.0 million* Technology & Innovation Deployment $62.5 million* Training & Education $24.0 million* ITS Program $100.0 million* University Transportation Centers $72.5 million* Bureau of Transportation Statistics $26.0 million* SHRP 2 implementation (funded as set aside of State Planning and Research funds) $TBD *Annual $ Funding Levels

2 Accelerates project delivery and promotes innovation. Technology Innovation and Deployment Program $62.5 M per fiscal year ( ) SHRP2 Implementation Every Day Counts initiatives Demonstrations Pilots and Testing Accelerated Innovation Deployment At least $12 million per year of these funds must be used to accelerate the deployment and implementation of pavement technology. Every Day Counts The Every Day Counts Initiative Accelerating Technology Deployment Every Day Counts 9 9 Performance Metrics Factors Driving Development 1. By December 2011, 40 State DOTs and all Federal Lands Divisions will have a specification &/or contractual language that allows WMA on Federal aid or Federal Lands projects. 40 States + all FLHD (Complete) 2. By December 2012, at least 30 State DOTs will have achieved set targets for WMA usage. 18 Total with set usage goals

3 Memorable Message I.C. = I.P. Improved Compaction = Improved Performance F.E.W. key benefits Fuel Emissions Worker Comfort In 2010, use of WMA estimated: We saved over 30 million gallons of fuel during production We reduced CO 2 e by 800,000 tons Equivalent to taking 150,000 vehicles off the road! If used 100% WMA 10 x General Technology Categories Technology Overview** Many US technologies web linked at: This listing does NOT constitute an endorsement or approval. **Federal Highway Administration does not endorse or promote any particular proprietary product or technology. Stakeholder Engagement: WMA Technical Working Group Established in 2005 Adjourned in 2012 Co Chairs: Matthew Corrigan FHWA Commitment to Stakeholder Engagement in the Pavement & Materials Program Pavement RPUG Preservation Surface ETG Characteristics Ron White Construction AASHTO Subcommittees Maintenance AASHTO JTP DGIT IRI ETG Materials 18

4 NCHRP Projects funded as a result of WMA TWG efforts: 9 43 Mix Design Practices for WMA $522,501 completed 9 47 Engineering Properties, Emissions, and Field Performance of WMA Technologies $79,000 completed Properties and Performance of WMA 9 47A $1,121,000 Jan 2013 Technologies Performance of WMA Technologies: 9 49 $450,000 Jun 2013 Stage I Moisture Susceptibility Performance of WMA Technologies: 9 49A Stage II Long Term Field Performance $900,000 Jul Short Term Laboratory Conditioning of Asphalt Mixtures $800,000 Dec Properties of Foamed Asphalt for Warm Mix Asphalt Applications $700,000 Sept 2014 Long Term Aging of Asphalt Mixtures for 9 54 $800,000 begin 2013 Performance Testing and Prediction Recycled Asphalt Shingles in Asphalt 9 55 $600,000 begin 2013 Mixtures with WMA Technologies Development of a WMA (311) Tech. Evaluation Program $50,000 completed Total $6,022,501 National Research Initiatives NCHRP 9 54: Long Term Aging of Asphalt Mixtures for Performance Testing and Prediction RFP close date: 10/18/2012 NCHRP 9 55: Recycled Asphalt Shingles in Asphalt Mixtures with WMA Technologies RFP close date: 11/14/2012 National Research Initiatives Research Needs Statement for proposed 2014 NCHRP 09 xx project: Recycling Agents Used For Asphalt Mixtures Containing High Recycled Asphalt Binder Ratios National Research Initiatives NCHRP 9 43 Mix Design Practices for Warm Mix Asphalt $500,000 NCHRP Report 691 COMPLETED NCHRP Project Resource Products: Appendix to AASHTO R35 with commentary Special Mixture Design Considerations and Methods for Warm Mix Asphalt (WMA) WMA Mix Design Workshop/Training Module Being converted to web based training thru NHI Chapter on WMA Mix Design for the NCHRP Project Mix Design Manual Standard Practice For Measuring Properties of Warm Mix Asphalt (WMA) for Performance Analysis Using the AASHTO MEPDG (AASHTO DARWin ME Software) R35

5 Course Number: FHWA-NHI Appendix to AASHTO R35 with commentary Special Mixture Design Considerations and Methods for Warm Mix Asphalt (WMA) Approved by AASHTO Subcommittee on Materials and published: Standard Specifications for Transportation Materials and Methods of Sampling and Testing (32nd Edition, 2012) 25 Commercially Available Laboratory Foaming Devices Wirtgen, WLB 10 S PTi THE FOAMER InstroTek, Inc. AccuFoamer NCHRP 20 07/ Task 311, Development of a Warm Mix Asphalt Technology Evaluation Program (complete) Myers McCarthy Consulting Engineers, LLC asp?projectid=3075 AASHTO NTPEP Panel has been established to review findings: POC: Tom Baker, Washington State DOT Fall 2012 Implementing WMA 1 day training (FHWA coop with NCAT) Processes, mix design, production, placement, compaction, performance, status of implementation, and proposed guide spec s Oct. 16 th Atlanta, Georgia Oct. 23 rd Denver, Colorado Fall 2012 WMA Essentials 2 day training on WMA Essentials FHWA Center for Accelerating Innovation (formerly Highways for LIFE) Applied Research Associates, Inc. (ARA) Focus on Mix Design, Production, Acceptance Nov. 8 9 Pilot hosted by Maryland SHA

6 Warm Mix Asphalt: Best Practices, 3 nd nd Edition Stockpile Moisture Management Burner Adjustments and Efficiency Aggregate Drying and Baghouse Temperatures Drum Slope and Flighting Combustion Air RAP usage Placement Changes AK Guam State DOT WMA Usage HI CA WA OR NV ID UT AZ Mobile Asphalt Testing Laboratory Program MT NM WY CO ND SD NE KS TX OK MN IA MO AR LA WI IL MS IN KY TN AL MI OH GA WV VA NC SC FL PA VT 495 NY ME CT NJ DE MD DC NH MA RI VI Quality Improvement Series 125 PR AK I-WMA Interstate Highway WMA Usage Guam 5 HI CA 90 WA OR NV ID UT AZ 15 MT WY 70 CO NM ND 81 MnROAD MN 94 WI SD NY MI 90 PA NE IA 70 OH 495 IL IN 465 WV KS MO KY VA NC TN 40 OK AR SC 10 MS AL GA 30 TX35 LA FL VT PR ME NH NH MA MA RI RI CT NJ DE MD DC VI million tons WMA Usage Percentage of Total Asphalt Production in USA 2006 WMA trials begin million tons 22% million tons data being collected Items for continued involvement: Standardize reheating procedure for WMA mixtures for volumetric and performance tests? Use of RAS, RAP, GTR, alternate binders, and combinations used with WMA technologies? Low temperature applications w/ high percentages? Rejuvenating agents marketed as WMA? Use of WMA to remove SMA fiber requirements? Incentives and motivation for improved density? Increased density requirements on WMA? Items for continued involvement: Conditioning for WMA performance testing? Need for WMA specific mix design? (AASHTO R 35) Incorporate impact of aggregate absorption? Short term and long term? Need for laboratory foaming equipment? Evaluation of asphalt foam characteristics? Are unique foam properties provided or simply volume expansion & improved coating? Local agency WMA acceptance and training?

7 Every Day Counts 37 Every Day Counts 38 Improved Compaction I.C. = I.P. Improved Performance Thank You! Every Day Counts 39 Matthew Corrigan, P.E. Asphalt Pavement Engineer FHWA Washington D.C.