pavement renewal solutions (r23) -...

SHRP2 R23 | December 2013

Pavement Renewal Solutions(R23)

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SHRP2 R23 | December 2013SHRP2 R23 | December 2013

Agenda

• SHRP2 Overview–What is SHRP2?–Focus Areas–Implementation Assistance

• Technical Product Description• Product Implementation• Implementation Timeline• Questions

Source: Iowa DOT

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Imagine the Possibilities

Innovations are available to transportation agencies through a variety of programs, including SHRP2 and EDC2. These innovations:

• May be applied individually or in combination with products from different programs.

• Are easy to learn more about through Websites, Webinars, demonstrations, and peer-to-peer programs.

• Are supported by funding and assistance opportunities that can help your agency quickly and confidently apply innovations to current challenges.

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State-Based Transportation Innovation Councils

• Provides state-based leadership for the innovation strategies and solutions

• Helps facilitate deployment of innovation initiatives

• Engages all the key stakeholders in a state

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What is SHRP2?(Second Strategic Highway Research Program)

• Products developed from objective, credible research

• Solutions that respond to transportation community challenges – safety, aging infrastructure, congestion

• Tested products, refined in the field

Save lives. Save money. Save time.

SHRP2 Solutions offer new technologies and processes to enhance the efficiency of transportation agencies

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Why is SHRP2 Important?

SHRP2 Solutions have the power to change the way transportation agencies do business.

Tools for the Road Ahead

By providing new research-based tools and innovative products and processes…

That will create more efficiencies and a smarter use of state and federal investments of taxpayer dollars.

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Safety: fostering safer driving through analysis of driver, roadway, and vehicle factors in crashes, near crashes, and ordinary driving

Renewal: rapid maintenance and repair of the deteriorating infrastructure using already-available resources, innovations, and technologies

Capacity: planning and designing a highway system that offers minimum disruption and meets the environmental and economic needs of the community

Reliability: reducing congestion and creating more predictable travel times through better operations

Focus Areas

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Implementing SHRP2 Solutions

Moving Forward• Approximately 66 high-priority

products introduced over the next several years

• Users run the gamut of the transportation industry

• Selected products integrated into current transportation practices

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SHRP2 Implementation AssistanceProgram

Proof of Concept Pilot• Funds for piloting products to evaluate readiness for implementation• Contractor support to collect data and evaluate the application

Lead Adopter Incentive • Funds for early adopters to offset implementation cost and mitigate risks• Recipients required to provide specific deliverables designed to further

refine the product, and possibly “champion” the product to other states and localities

User Incentive• Funds for implementation support activities after early adopter use• Used to conduct internal assessments, build capacity, implement system

process changes, organize peer exchanges, or offset other implementation costs

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Round 1 Implementation Assistance

First Round at a Glance• 34 states and the District of Columbia

• 6 SHRP2 Solutions at work on 108 transportation projects

• 2 proof of concept pilots

• 74 lead adopter incentives

• 24 user incentives

• Limited technical assistance to 8 states

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Round 2 Implementation Assistance

Second Round at a Glance• 18 states

• 4 SHRP2 Solutions at work on 27 transportation projects

• 18 lead adopter incentives

• 9 user incentives

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Round 3Implementation Assistance

Capacity• Freight Demand Modeling and Data Improvement (C20)

Renewal• GeoTechTools (R02)• Precast Concrete Pavement (R05)• Identifying and Managing Utility Conflicts (R15B)• Pavement Renewal Solutions (R23)

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Product Implementation AssistanceOpportunities

Product Proof of Concept Pilot

Lead Adopter Incentive

User Incentive

Freight Demand Modeling and Data Improvement (C20) 9-11

GeoTechTools (R02) 5

Precast Concrete Pavement (R05) 5

Identifying and Managing Utility Conflicts (R15B) 6

Pavement Renewal Solutions (R23) 5 10

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Implementation Assistance Selection Criteria

General Criteria for Participants(will vary somewhat among products)

• Geographic diversity of participants

• Demonstrated culture to implement new products or processes

• Demonstrated past interest and/or efforts to implement similar products or processes

• High commitment to making institutional/organizational changes

• Commitment to conduct demonstration workshops

• Willingness to share experience by facilitating peer-to-peer activities

• Commitment to dedicate staff to the implementation project

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Pavement Renewal Solutions (R23)

AASHTO Committees & Implementation Resources• Subcommittee on Materials• Subcommittee on Design• Joint Technical Committee

on Pavements• TIG – AASHTO Technology

Implementation Group

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Pavement Renewal Solutions (R23)

ChallengeRapid renewal of existing pavement and provide long life pavement structures to minimize effect on users and maximize cost effectiveness.Solution Develop Guidelines for pavement renewal using in place pavements including design and construction features and specifications needed for long life performance.

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Pav

emen

t C

ondi

tion

Terminal Serviceability

Pavement LifeT0 T1

75% of Life

12%

40% Drop in Quality

40% Drop in Quality

$1.00 to Preserve Here

Pavement Deterioration Curve

R23

R26

20 years 30-50 years17


R23 Project Participants

James Bryant SHRP 2Newton Jackson NCEJason puccineeii NCEJoe Mahoney – UWSteve Muench – UWGeorge White – PaviaKarim Chatti - MSU

Neeraj Buch - MSUDan Zollinger - Texas A&MTom Scullion - Texas A&M Julie Vandenbossche - UPMark Snyder Rita LeahyKatie Hall

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Contributing Agencies

Organization Contact

Steven Gullien

Michael Eacker

Steven Gull

Shongtao Dai

Magdy Mikhail

Trenton Clark, Alex Teklu

Jeff Uhlmeyer19


Contributing Industry

Organization Contact

Larry Scofield (IGGA)

Dave Newcomb (TTI)

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Methodology

Phase 1• Conducted extensive literature review• Queried many states for information on what they did and

how long it lasted.• Analyzed the LTPP Database for treatment approaches and

performance.• Where the LTPP data did not have sufficient performance

history, ran numerous PerRoad and MEPDG design analyses to estimate service life for a range of LTPP sites.

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Methodology

Phase 2• Visited seven agencies to review what they did, how it

performed (site visits) and worked with them to help develop the guidelines and provide feedback on the Guidelines.

• Developed test cases and conducted a number of workshops to review and refine the guidelines.

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Long Life Approaches

• Unbonded PCC overlays of flexible pavement• Unbonded PCC overlays of rigid pavements• Bonded CRCP overlays of CRCP• HMA overlays of rigid pavements

– With rubbilization of PCC pavement– With crack and seating of JPCP– With saw crack and seating of JRCP

• HMA overlays of flexible pavement– Provided all stripping, fatigue cracking,

thermal cracking is addressed

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Addition of options from R05 & R21

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Decision Matrix:Multiple Selection TablesSelection tables a function of existing pavement type, distresstypes and levels, and subgrade support renewal options.

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Decision Matrix:Design TablesDesign tables were developed to provide an estimate of pavement thickness required for long life pavements.

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Interactive Program rePave

An application was developed to simplify the selection process and provide a platform for the background information needed to design and build long life pavements

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Pavement Renewal Solutions

Product Benefits

rePave Scoping Tool Will encourage longer lasting designs. Realistic scoping assessments and easy to use. Guides user through data gathering process.

Project Assessment Manual (including Life Cycle Assessment, Traffic)

Combines traditional rehabilitation data needs with up-to-date tools such as CA4PRS (construction productivity and work zones).

Best Practices: Flexible and Rigid

Document practices that are critical for designing and constructing long lasting pavements.

Combine key practices with specifications.

Guide Specifications Specification elements can be incorporated in preexisting agency standard specifications.

LCCA, Emerging Technologies

Encourage use of LCCA. Create awareness of emerging pavement

technologies.28


Assessment Scoping Design PS&E

rePave Scoping Tool

Interactive decision matrix for identifying

and selecting pavement renewal strategies

access to resources

Project Assessment Manual

Guidelines for data collection, testing, etc.

required for assessment and scoping

Best Practices: Flexible and Rigid

Guide Specifications

LCCA, Emerging Technologies

R23 Products:How it works

Use Standard State Design

Process (ie: AASHTO

Pavement ME, PerRoad, etc.)

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rePave Scoping Tool(Interactive Program)A web-based, user-friendly means of walking through the decision making process (selection and design tables)

A user-friendly means of navigating a large amount of information (required to produce long-life pavements)

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Step 1: Project Information

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Step 2: Existing Section

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Step 3: Future Section

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Step 4: Existing Distress

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Step 4a: Confirmation

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Step 5: Renewal Options

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Step 6: Summary

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Coming Enhancements:Single Sign On

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Coming enhancements:Organize and Share

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Coming enhancements:Comparison feature

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Resources to Enhance Use of Design Guidelines

Project Assessment

Manual


Best Practices

Rigid

Best Practices Flexible

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Project Assessment Manual: Topics• Pavement Distress Surveys• Rut Depth and Roughness• NDT via FWD• Ground Penetrating Radar• Pavement Cores• Dynamic Cone Penetrometer• Subgrade Sampling and Tests• Traffic Loads for Design• Construction Productivity

and Traffic Impacts• Life Cycle Assessment• Material Properties

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Construction Productivity and Traffic Impacts• Construction Productivity• Largely built around CA4PRS (Construction Analysis for

Pavement Rehabilitation Strategies)• Typical CA4PRS input data summarized for

– Crack and seat followed by HMA overlay– PCC overlay

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Construction Productivity and Traffic Impacts

0

2

4

6

8

10

12

14

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0

Thic

knes

s of

Pav

emen

t Con

stru

cted

(in

ches

)

Lanes-MIles Constructed in One Closure

10-hour Night Closure (not feasible)

55-hour Weekend Closure

168-hour 24/7 Continuous Week-Long Closure

PCC Overlay Scenario44


Best Practices

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Flexible Best Practices:Strategies • Introduction• HMA Renewal Strategies

– HMA over HMA renewal methods• HMA over existing HMA pavement• HMA over reclaimed HMA (recycling)

– HMA over PCC renewal methods• HMA over existing HMA-surfaced composite

pavements• HMA over crack and seated JPC pavements• HMA over saw, crack-and-seat JRC pavements• HMA over rubblized JPC pavements• HMA over existing CRC pavements

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HMA Overlays over Existing HMA Pavements• Criteria for Long Life Potential

– The surface condition is good and the structural capacity of the existing AC pavement is adequate for a potential long-life pavement.

– There is no evidence of stripping in any of the existing HMA layers (determined through coring and/or GPR testing).

– Proper repair and surface preparation is provided for the existing surface layer, and a good tack/bond coat is provided.

– The existing drainage system is in good working condition, or adequate drainage is provided.

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Summary Tables

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HMA Construction:Quality Control• Density: Dense-graded mixes ≥ 93% of TMD• Segregation: Temperature variation is featured

Example of segregated pavement Thermal image during paving

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Rigid Best Practices:Strategies• Introduction• Rigid Renewal Strategies

– Unbonded Concrete Overlays of Concrete Pavements– Unbonded Concrete Overlays of HMA Pavements– Bonded Concrete Overlays of Concrete Pavements

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Rigid Best Practices:Details • Unbonded Concrete Overlays of Concrete Pavements

– Criteria for Long Life Potential– Materials Considerations

• Cementitious Materials• Aggregate• Chemical Admixtures

– Separator Layers– Other Materials– Design Considerations– Structural Design and Joint Design Considerations

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Rigid Best Practices:Details• Unbonded Concrete Overlays of Concrete Pavements

– Drainage Design– Performance Considerations– Construction Considerations– Example Designs– Summary– Unbonded Concrete Overlays of Concrete Pavements and

Specifications

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Summary: UBO of Concrete Pavements and Specifications

• Best Practice• Why this Practice?• Typical Specification

Requirements

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• Introduction• Specifications not contained in the AASHTO Guide

Specifications• Elements for AASHTO Guide Specifications• AASHTO and State DOT Specification Summaries

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Recommended R23 Specification Elements AASHTO Section 404 Tack Coat

Source refers to AASHTO and State

Specifications

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R23 Early Use Case: WSDOT• WSDOT used R23 products on a time sensitive project on

Interstate 5 to help identify the best long-term renewal approach for the agency.

– Performed Pavement Assessment– Formal designs and thicknesses were comparable to that of the R23

Pavement Guidelines so felt confident– Used R-23 Guide Specs to help shape specs for project– Final design resulted in crack, seat, overlay over existing PCC.

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State of the Practice Value:WSDOT• WSDOT used R23 products on a time sensitive project on

Interstate 5 to help identify the best long-term renewal approach for the agency.

“It helped us identify our renewal options, understand how to specify them, and define best practices for implementation, without stumbling through several weeks of analysis”

Jeff Uhlmeyer State Pavement Engineer

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Access all the products at:

www.pavementrenewal.org

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Implementation Strategies

5 Step Implementation Program

1) Outreach and Communications2) Agency Evaluations 3) Agency Plan Development 4) Agency Targeted Usage5) Agency Routine Usage

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Assistance Opportunities

Third Round -January 2014

Proof of Concept Pilot

Lead Adopter Incentive

User Incentive

R23 – Pavement Renewal Solutions 0 5 10

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R23 Implementation Assistance

• Lead Adopters (up to 5 states)

• Building interest and champions to spearhead the institutionalization of long life pavement designs.

• Development of additional case studies to demonstrate economic and environmental benefits of the R23 Products.

• Revising State specifications to incorporate long life pavement designs as a routine practice.

• Hosting Peer Exchanges and making presentations to assist other agencies with implementation.

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R23 Implementation Assistance

• User Incentives (up to 10 States)

• Technical Assistance to review current specifications, policies, and pavement design processes used by the DOT with the goal of implementing long-life pavement designs that incorporate existing pavements into the design of targeted projects.

• Please visit www.pavementrenewal.org to learn more about the products!

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http://www.pavementrenewal.org/


Application Tips

Do Don’tMake your application clear and concise

Forget to provide a response in each of the fields

Describe any previous DOT efforts related to using existing pavements in-place and long-life designs.

Assume the SHRP2 program is familiar with details about your agency,the narrative should be complete

Describe how the DOT anticipatesimplementing product including necessary resource requirements.

Forget that implementation assistance is to advance the use of Pavement Renewal Solutions.

Describe the outcomes and deliverables you expect to achieve

Apply if you do not represent a state DOT or other Federal-aid recipient.

Expect to share the results of your product implementation

Be late; applications are due by February 14, 2014

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Round 3 Implementation Assistance Schedule

• Product Webinars held in December

• Implementation Assistance Timeline– Application period opens January 17 , 2014– Application period closes February 14, 2014– Awards announced March 28, 2014

• More information at www.fhwa.dot.gov/goshrp2

R05: Precast Concrete Pavement December 12 2 - 3:30 p.m.

R15B: Identifying and Managing Utility Conflicts December 13 2 - 3:30 p.m.

R02: GeoTechTools December 16 12 - 1:30 p.m.

C20: Freight Demand Modeling and Data Improvement December 16 2:30 - 4:00 p.m.

R23: Pavement Renewal Solutions December 17 2 - 3:30 p.m.

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http://www.fhwa.dot.gov/goshrp2


• State Visits

• SHRP2 Tuesdays– R05: Precast Concrete Pavement (Sep 24, 2013)

– R15B: Identifying and Managing Utility Conflicts (July 30, 2013)

– R23: Pavement Renewal Solutions (February 4, 2014)

– C20: Freight Demand Modeling and Data Improvement (January 21, 2014)

– News on future webinars can be found at trb.org/SHRP2

Additional Resources

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http://www.trb.org/StrategicHighwayResearchProgram2SHRP2/Blurbs/169376.aspx

http://www.trb.org/StrategicHighwayResearchProgram2SHRP2/Blurbs/169143.aspx

http://www.trb.org/StrategicHighwayResearchProgram2SHRP2/RenewalWebinars.aspx


GoSHRP2 on the Web

• GoSHRP2 www.fhwa.dot.gov/goSHRP2

– Comprehensive information about SHRP2’s implementation phase

• SHRP2 @TRB www.TRB.org/SHRP2

– Information about research phase

• SHRP2 @AASHTO http://SHRP2.transportation.org

– Implementation information for AASHTO members

Rich source fordetails of

implementation assistance along with

focus area and product

information

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http://www.trb.org/SHRP2

http://www.trb.org/SHRP2

http://shrp2.transportation.org/


2014: Full Steam Ahead

• Round 3 opens in January • Support begins for Round 3 recipients• Anticipated Round 4 products projected for June

– R01A – Technologies to Store, Retrieve, and Use 3D Utility Location Data– R06A – Nondestructive Testing Technologies for Concrete Bridge Decks– R06G – Mapping Defects in or Behind Tunnel Linings– R06C – Rapid Technologies to Enhance Quality Control on Asphalt Pavements– R09 – Managing Risk in Rapid Renewal Projects– R10 – Innovative Strategies for Managing Complex Projects– R19A – Designing and Preserving Bridges to Achieve a 100-Year Service Life– R21 – Composite Pavement Systems– C03 & C11 – T-PICS / Economic Analysis Tools– C10 – Integrated Travel Demand Modeling– L02/05/07/08/37/38 – Reliability Data and Analysis Tools (Bundle)

• Continued technical and financial assistance for rounds 1 and 2 throughout the year

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Questions?

R23: http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=2174

Implementation Assistance: www.fhwa.dot.gov/goSHRP2

Email: [email protected]

For more information:

Steve Mueller FHWA [email protected] Smith AASHTO [email protected]

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http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=2174

http://www.fhwa.dot.gov/goSHRP2

mailto:[email protected]



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