Presentation is loading. Please wait.

Presentation is loading. Please wait.

High Value Research Sweet 16 – RAC Region 3

Published byMonica Axelsson Modified over 5 years ago

Similar presentations

Presentation on theme: "High Value Research Sweet 16 – RAC Region 3"— Presentation transcript:

1 High Value Research Sweet 16 – RAC Region 3
Presentation Title High Value Research Sweet 16 – RAC Region 3 Diane Gurtner WisDOT Research & Library Services National RAC and TRB State Representatives meeting Wichita, Kansas July 24, 2018 Wisconsin Department of Transportation

2 The Wisconsin Highway Research Program (WHRP)
Presentation Title The Wisconsin Highway Research Program (WHRP) Established in collaboration with UW – Madison in 1998 FFY 2017 budget of $1.23 million Primary research areas Flexible Pavements Rigid Pavements Structures Geotechnics Wisconsin Department of Transportation

3 Critical Factors Affecting Asphalt Concrete Durability WHRP 0092-14-06
Presentation Title Critical Factors Affecting Asphalt Concrete Durability WHRP Objective: Investigate factors affecting asphalt concrete durability, and evaluate WisDOT’s current mixture criteria relative to best practices. Wisconsin Department of Transportation

4 Scope Determine relationships among four compositional factors through semi-circular bend and oven aging tests on laboratory-prepared mixtures Verify cracking-resistance estimates on plant-produced mixtures

5 Examined Factors

6 Presentation Title Tests Semi-circular bend at intermediate temperatures to measure cracking resistance Oven aging to measure age hardening Wisconsin Department of Transportation

7 How to Improve Durability
Increase Volume of effective binder Polymer modification Tack coat application rate Density targets Asphalt content Decrease Virgin binder low temperature grade Recycled binder content

8 Factors Targeted for Improvement
Presentation Title Factors Targeted for Improvement Bolded factors have been addressed in specification changes Specification changes for italicized factors are being developed. Wisconsin Department of Transportation

9 Changes to WisDOT Specs
Presentation Title Changes to WisDOT Specs Increased: Density targets Asphalt content Voids in mixed aggregates from 12.5mm to 14.5mm in low- traffic and medium-traffic mixes Tensile strength ratios from 75% to 80% for anti-strip mixes and 70% to 75% for non anti-strip mixes Application of tack coat from to gal/sy Mandated warm mix asphalt additive for cold-weather paving below 40F Aiming to increase use 9.5mm overlays on high-traffic roads Wisconsin Department of Transportation

10 Benefits Increases average asphalt pavement life by two years or more
Presentation Title Benefits Increases average asphalt pavement life by two years or more Reduces annual costs by $25 million Reduces pressure on WisDOT’s letting program Increasing pavement lifespan decreases the frequency at which replacement or repair is needed and alleviates pressure on the letting program. Wisconsin Department of Transportation

11 Contacts and Resources
Presentation Title Contacts and Resources WisDOT Research & Library Homepage Final Report | Research Brief Principal Investigator Ramon Bonaquist, Advanced Asphalt Technologies Project Manager Carl Johnson, Stark Asphalt WisDOT Project Contact Barry Paye, Bureau of Technical Services WisDOT Research & Library Services Wisconsin Department of Transportation

Download ppt "High Value Research Sweet 16 – RAC Region 3"

Similar presentations

Behavior of Asphalt Binder and Asphalt Concrete

Behavior of Asphalt Binder and Asphalt Concrete
Background: Hot mix asphalt (HMA) is a mixture of aggregate and asphalt binder. The asphalt is a petroleum based substance and, since the oil embargo of.

Background: Hot mix asphalt (HMA) is a mixture of aggregate and asphalt binder. The asphalt is a petroleum based substance and, since the oil embargo of.
Advanced Asphalt Technologies, LLC “Engineering Services for the Asphalt Industry” WHRP Project 0092-10-06 Effect of Recovered Binders from Recycled Shingles.

Advanced Asphalt Technologies, LLC “Engineering Services for the Asphalt Industry” WHRP Project Effect of Recovered Binders from Recycled Shingles.
Recycled Asphalt Program & Environmental Stewardship Program (Post Consumer Content) Robert C. Rea Nebraska Department of Roads WASHTO – Omaha, Nebraska.

Recycled Asphalt Program & Environmental Stewardship Program (Post Consumer Content) Robert C. Rea Nebraska Department of Roads WASHTO – Omaha, Nebraska.
22 nd Conference Roads and Works - 2014 Asphalt Trial – Outcomes so far Rod Ellis Board Member IPWEA SA.

22 nd Conference Roads and Works Asphalt Trial – Outcomes so far Rod Ellis Board Member IPWEA SA.
Update on VDOT’s Asphalt Research Activities 2014 VDOT Asphalt Seminars February & March, 2014 1.

Update on VDOT’s Asphalt Research Activities 2014 VDOT Asphalt Seminars February & March,
NCHRP Projects 9-25 & 9-31: Findings Related to Surface Cracking FHWA Mixture ETG Washington, DC February 2003 Advanced Asphalt Technologies, LLC “Engineering.

NCHRP Projects 9-25 & 9-31: Findings Related to Surface Cracking FHWA Mixture ETG Washington, DC February 2003 Advanced Asphalt Technologies, LLC “Engineering.
Development and Application of the Asphalt Mix Performance Tester Ramon Bonaquist, Ph.D., P.E Advanced Asphalt Technologies, LLC.

Development and Application of the Asphalt Mix Performance Tester Ramon Bonaquist, Ph.D., P.E Advanced Asphalt Technologies, LLC.
Test Result Relationships

Test Result Relationships
SMA Mixture Design Requirements

SMA Mixture Design Requirements
Stone Mastic Asphalt Molly Nause-McCord. What is it? A type of road surfacing mix Mix made up of 70% coarse aggregate Nominal size of 10 mm or 14 mm –10mm.

Stone Mastic Asphalt Molly Nause-McCord. What is it? A type of road surfacing mix Mix made up of 70% coarse aggregate Nominal size of 10 mm or 14 mm –10mm.
1 Final Estimates and Asphalt Reports. 2 Setting Spread Rate For Asphalt Base.

1 Final Estimates and Asphalt Reports. 2 Setting Spread Rate For Asphalt Base.
Advanced Asphalt Technologies, LLC “Engineering Services for the Asphalt Industry” WHRP Project 0092-10-07 HMA Fatigue and Low Temperature Properties to.

Advanced Asphalt Technologies, LLC “Engineering Services for the Asphalt Industry” WHRP Project HMA Fatigue and Low Temperature Properties to.
1. PROPERTIES OF ASPHALT CONCRETE asphalt mixture shows severe temperature susceptibility: high-temperature rutting, media temperature fatigue low temperature.

1. PROPERTIES OF ASPHALT CONCRETE asphalt mixture shows severe temperature susceptibility: high-temperature rutting, media temperature fatigue low temperature.
Evaluation of Cracking Resistance of Superpave Mixtures Using Texas Overlay Test Syeda Rubaiyat Aziz Mustaque Hossain Greg Schieber Department of Civil.

Evaluation of Cracking Resistance of Superpave Mixtures Using Texas Overlay Test Syeda Rubaiyat Aziz Mustaque Hossain Greg Schieber Department of Civil.
Tolerances and Price Impacts Presented by:- Er. Bhagawan Shrestha.

Tolerances and Price Impacts Presented by:- Er. Bhagawan Shrestha.
2006 Mid-Continent Transportation Research Forum and Workshop “Making Research Pay Off” August 17–18, 2006 Madison, Wisconsin Concurrent Session 3 : Flexible.

2006 Mid-Continent Transportation Research Forum and Workshop “Making Research Pay Off” August 17–18, 2006 Madison, Wisconsin Concurrent Session 3 : Flexible.
Pavement Design Terms and Concepts

Pavement Design Terms and Concepts
ACEC WI Department of Transportation Liaison Committee Quarterly Meeting February 3, 2015.

ACEC WI Department of Transportation Liaison Committee Quarterly Meeting February 3, 2015.
Reclaimed Asphalt Pavements “RAP” Pete Coffman. RAP ◊Uses ◊Mix Methods ◊Cost Savings ◊Concerns ◊Case Studies ◊Uses ◊Mix Methods ◊Cost Savings ◊Concerns.

Reclaimed Asphalt Pavements “RAP” Pete Coffman. RAP ◊Uses ◊Mix Methods ◊Cost Savings ◊Concerns ◊Case Studies ◊Uses ◊Mix Methods ◊Cost Savings ◊Concerns.

Similar presentations

Ads by Google