Content History Oversight Quality Loading Performance Findings

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Presentation transcript:

NCAT+MnROAD Partnership for a Nationwide Pavement Performance Experiment

Content History Oversight Quality Loading Performance Findings Implementation

NCAT Pavement Test Track

MnROAD

Scope of Partnership Asphalt mix cracking performance test (CG) “Balanced” use of reclaimed and recycled materials Mix design approval and production QC/QA Fatigue in hotter south, thermal in colder north Benefits of pavement preservation (PG) Life extension (x) and condition improvement (y) Broad range of pretreatment pavement condition Hot climate, cold climate, low traffic, high traffic

National Transportation Pooled Fund Maine Washington Oregon California Nevada Idaho Montana Wyoming Colorado Utah New Mexico Arizona Texas Oklahoma Kansas Nebraska South Dakota North Dakota Minnesota Wisconsin Illinois Iowa Missouri Arkansas Louisiana Alabama (DOT & DEM) Tennessee Michigan Pennsylvania New York Vermont Georgia Florida Mississippi Kentucky South Carolina North Carolina Maryland Ohio Delaware Michigan (upper pennisula) New Hampshire Massachusetts Rhode Island Connecticut New Jersey FHWA West Virginia Indiana Private Sector Sponsors Cargill Deicing Technology Collaborative Aggregates FP2 Kraton Polymers Modified Asphalt Solutions Oldcastle Materials Polycon Manufacturing Seneca Petroleum Shell Sulfur Solutions Trinidad Lake Asphalt Virginia Pre-2015, 2015

Balanced Mix Performance (CG)

Pavement Preservation (PG) Proactive Decision Tree via Life Extending & Condition Improving Benefits “Worst First” Reactive Approach Crack/fog seal Chip/slurry/micro Thin overlay Thick overlay Shallow mill/inlay or hot recycle + overlay Deep mill/inlay or cold recycle + overlay(s) Reclamation + overlay(s) Select for Lowest Life Cycle Cost

New

Construction Quality

Construction Quality

Climate and Traffic

Continuous Performance

Peer Reviewed Findings

Implementation

Benefits of Preservation 34

Chip SealsSouth 34

Micro Surface with Crack SealingNorth

Micro Surface with Crack SealingSouth 34

Micro Surface QC/QA

RAP+RAS Thinlays on Cold RecycleF,E Central Plant In-Place

Summary Long history of world class research facilities Turnkey research with control/oversight by agency High quality of construction and placement Same climate and precisely monitored traffic Continuous (and safe!) performance testing Findings peer reviewed, published, and transferred Support for implementation (specs, training, etc.).

End-of-Cycle Track Conference High RAP/RAS balanced mix designs Nationwide pavement preservation Preventing reflective distresses Optimized structural design Implementation March 27-29, 2018 23

Dr. R. Buzz Powell, PE 277 Technology Parkway Auburn, AL 36830 Assistant Director & Test Track Manager 277 Technology Parkway Auburn, AL 36830 Phone: (334) 844-6857 Cell: (334) 750-6293 Email: buzz@auburn.edu Web: www.pavetrack.com Twitter: www.twitter.com/pavetrack