Research Projects Update

Andrew HanzWHRP Program Manager

Hussain BahiaWHRP Technical Director

DRAFT CONCEPT for Contractor Engineer conferenceJanuary 21, 2009

WISCONSIN HIGHWAY RESEARCH PROGRAM

Year in ReviewOctober 1, 2007 – September 30, 2008

WHRP Mission

Improve the return on investment in Wisconsin roads by delivering timely and implementable research products.

WHRP – Organization

• Steering Committee • Five Technical Oversight Committees

– Structures

– Rigid Pavements

– Geotechnics

– Flexible Pavements

– { Data Integration }

• Frozen Four – Regional Coordination • Technical Service/Assistance to the

Information Commons Program

Progress to Date Completed and ongoing research

• WHRP was established in 1998– 59 completed projects, 32 in progress (as of Oct. 2008)

– Flex TOC: 20 projects completed, 6 in progress

– Rigid TOC: 15 projects completed (1 Pooled Fund), 4 projects in

progress (3 Pooled Fund)– Geotech TOC:

14 projects completed, 8 projects in progress– Structures TOC:

10 projects completed, 11 projects in progress– Data Integration TOC

3 projects in progress

Flex TOC Update Completed Research• Completed Research

– 02-13: Evaluation of Interlayer Bonding in HMA Pavements

– 03-13: Field Evaluation of Wisconsin Modified Binder Selection Guidelines

– 04-07: Testing Wisconsin Asphalt Mixtures for the AASHTO 2002 Design Procedure

– 06-01: Perpetual Pavement Instrumentation for the Marquette Interchange Project

Test at47 ºC

ram pressureram pressure

1.25 deg1.25 degSGC

• Research in Progress– Design and Rehabilitation

07-01: Investigation of the use of OGFC in Wisconsin 08-06: Wisconsin Mixture Characterization Using The SPT on

Historical Aggregate Structures 09-02: Performance Evaluation of Tack Coat Materials 08-09: Pre-Overlay Repair of Existing Concrete and Asphalt

Pavements

– Construction 07-17: Relationship Between Lab and Field Compaction 08-07: Evaluation of Intelligent Compaction Technology for

Densification of Roadway Sub-grades and Structural Layers (Joint with Geotech)

Flex TOC Update Research in Progress

• Completed Research– 04-12: Expanded Study of Aggregate Coating and Films

on Concrete Performance

– 05-05: Analysis of Concrete Pavement Joints to Predict the Onset of Distress

– 07-03: Improving Full Depth Concrete Repair

Rigid TOC Update Completed Research

• Research in Progress– Mix Design

07-02: Detecting Deleterious Fine Particles on Concrete Agg. And Defining Their Impact.

08-08: Reduction of Minimum Required Weight of Cementious Materials in Concrete Mixes

– Rehabilitation and Performance Evaluation 08-10: Performance Assessment of WI’s Whitetopping and Ultra-

Thin Whitetopping Projects 09-03: Performance Evaluation of OGBC with Doweled and Non-

Doweled Transverse Joints on USH 18/151 and STH 29.

Rigid TOC Update Research in Progress

• Completed Research– 00-13: Evaluation of Bridge Approach Settlement

Mitigation Methods.

Settlement Mitigation Alternative – Geosynthetic Reinforced Fill $15 - $20/CY of Backfill increase in bid price.

Geotech TOC Update Completed Research

• Research in Progress– Subgrade Evaluation/Stabilization

04-10: Monitoring and Evaluation of Fly Ash Stabilized Subgrade Constructed by WisDOT

07-05: Development of Testing Methods to Determine Interaction of Geo-Grid Reinforced Granular Material for Mechanistic Analysis.

08-12: Determination of Resilient Modulus Values for Typical Plastic Soils in Wisconsin.

– Structural Support Systems 07-04: Comparison of Three Different Methods for

Determining Pile Bearing Capacities 07-06: Development of Full Scale Testing of an Alternative

Foundation System for Post and Panel Retaining Walls.

Geotech TOC Update Research in Progress

• Research in Progress– Compaction– 06-04: Construction Vibration Attenuation with Distance

and its Effect on the Quality of Early Age Concrete

– 08-07: Evaluation of Intelligent Compaction Technology for Densification of Roadway Subgrades and Structural Layers. (Joint with Flex)

– 08-11: Effective Depth of Soil Compaction in Relation to Applied Compactive Energy.

Geotech TOC Update Research in Progress (continued)

• Completed Research Efforts – 06-07: Specification and Design of Fiber Reinforced

Bridge Deck Forms for Use on Wide Flange T-Girders

Structures TOC Update Completed Research

• Research in Progress– Bridge Analysis and Monitoring

04-15 Phase II: Bridge Integrated Analysis and Decision Support Case Histories

05-02: In-Situ Monitoring and Testing of IBRC Bridges in WI 07-09: Monitoring and Load Distribution Study for the Land Bridge

– Maintenance 06-06: Evaluation of Methods of Rebar Protection, Spall

Prevention, and Repair Techniques on Concrete Girders 07-07: Evaluation of Fiberglass Wrapped Concrete Bridge

Columns 09-06: Concrete Cracking in New Bridge Decks and Overlays

Structures TOC Update Research in Progress

• Research in Progress– Design and Construction

07-08: Rapid Bridge Construction Technology – Precast Elements for Substructures

05-03: Electronic Automation of LRFD Design Programs 08-13: Friction Coefficients for Stainless Steel (PTFE)

Teflon Bearings 08-14 Phase I: Fatigue Risks in the Connection of Sign

Support Structures – Phase I 08-15: Analysis of Permit Vehicle Loads in Wisconsin

Structures TOC Update Research in Progress (continued)

– 07-23: Data Integration and Partnership for Statewide Transportation Planning

– 08-16: Evaluation and Recommendations for Further Development of the WisDOT Pavement Information Files (PIF)

– 08-17: Development of a Database Framework and Implementation Plan for Integrating WisDOT Materials and Construction Databases

Data Integration TOC Update Research in Progress

Impact of Completed Research Projects

Andrew HanzWHRP Program Manager

WebinarNovember 25, 2008

WISCONSIN HIGHWAY RESEARCH PROGRAM

Year in ReviewOctober 1, 2007 – September 30, 2008

Impact of Completed Research Projects~ 60 Completed Projects… What is the impact?

Defined two categories– Implemented

Changed Practice Validated Current Practice

– Not Implemented: Not Implementable Further Research Implementation Project Pending Action

Impact of Completed Research Projects

• Performance Measure – Projects Implemented– Average for all TOCs: 28%– Range for TOCs: 15% - 45%

Implemented ProjectsFlex TOC • Validated Practice

– 00-04 – Minimum Pavement Thickness for Superpave Design: Verified Layer thicknesses in 460.3.2 were appropriate.

– 05-07 – Guidance for Rubbilization: Current Guidelines were verified.

• Change in Practice– 45-98 – Field and Lab Evaluation of FAA: Table 460-2 in

specifications changed to include the statement that FAA values are for design, not construction.

– 00-06 – Temperature Density Relationship of HMA: Density criteria in Section 460.3 were modified.

– 07-22 - Overlay Design Procedures for Flexible Pavements: Analysis tool and modification to FDM 14-10-30 to increase reliability of overlay design (AASHTO ’93 method).

• Validated Practice– 45-16 – Field Measurement of W/C Ratio for PCC Phase II: No

proposed methods were feasible for acceptance of field W/C as a pay item.

– 05-01 – Effects of GGBFS in PCC – Expanded Study: Recommendations consistent with current mix design specifications.

• Change in Practice– 00-08 – Wet Pavements Crash Study of Longitudinal and

Transverse Tined PCC: Std. Spec Section 415.3.11 allows long. tining on some pavements.

– 01-04 – Early Opening of PCC Pavements to Traffic: CP Tech Team allowed contractor to request early opening.

Implemented ProjectsRigid TOC

• Change in Practice– 03-16 – Evaluation of Methods for Characterizing Air Void

Systems in WI for PCC: Concept implemented, however a more sophisticated piece of equipment used by WisDOT.

– 05-05 – Analysis of Concrete Pavement Joints to Predict the Onset of Distress: Modifications were made to specs related to joint spacing (415.3.9) and reinforcement (415.3.8).

Damaged dowel bar showing ineffectiveness of epoxy coating

Implemented ProjectsRigid TOC (continued)

• Validated Practice– 00-13 – Evaluation of Bridge Approach Settlement Mitigation

Methods: Report validated current WisDOT methods and provided some alternatives. Cost comparison is needed before alternative methods are pursued.

• Change in Practice– 02-01 – Determination of Influence on Support Strength of

CABC Due to Gradational, Regional, and Source Variations: Values for material properties and resilient modulus CABC from sources around the state are being used to support implementation of MEPDG.

Implemented ProjectsGeotech TOC

• Change in Practice– 00-15 – Non-Destructive Testing of Highway Bridge Structures

for Purposes of Structural Evaluation: Manual providing overview and guidance was distributed to state bridge inspectors.

– 00-17 – Assessment and Rehabilitation Strategies/Guidelines to Maximize Service Life of Concrete Structures: Two technologies provided in the research report have been incorporated into the Bridge Inspection Manual.

– 02-14b – Rapid Strengthening of Concrete Bridges: Study provided rehab for limited use. Regional engineers are aware of technology, but it was omitted from the Bridge Manual because it is not widely used.

Implemented ProjectsStructures TOC

• Change in Practice– 03-10 – Integrated Field and Office Tools for Bridge

Management: Technology was implemented during the research. Tablet PCs were found to be a more efficient way to track data and integrate it into the bridge management system.

– 04-13 – Reducing Shrinkage Cracking of Structural Concrete Through the use of Admixtures: Research led to investigation of other methods of reinforcement which have been used in the field. Also motivation for FY 09 Deck Cracking Study.

– 04-14– Health Monitoring of Bridge Structures and Components Using Smart-Structure Technology: Structural Health Monitoring on Bridges is used in special cases.

Implemented ProjectsStructures TOC (continued)

WHRP Support of MEPDG

Andrew HanzWHRP Program Manager

WebinarNovember 25, 2008

WISCONSIN HIGHWAY RESEARCH PROGRAM

Year in ReviewOctober 1, 2007 – September 30, 2008

WHRP Support of MEPDG – Past Efforts

• TOCs have 14 projects from 2002 - 2008– Flex: 2 In Progress, 4 Completed– Rigid: 1 In Progress, 1 Completed– Geotech: 4 In Progress, 2 Completed

• Projects include:– Materials Characterization

– Monitoring of Performance

– Design and Construction

– Full Summary at http://www.whrp.org/MEPDG%20Research.pdf

WHRP Support of MEPDG – Potential Future Needs• Materials Characterization

– Develop conventional values for materials properties and mechanical performance.

– Effect of recycled and alternative materials on material response

WHRP Support of MEPDG – Potential Future Needs

• Design and Construction– MEPDG for overlays– Local calibration and

parallel designs– Develop methods for

field evaluation

• Data Needs Specific to MEPDG– Detailed performance

data over Time– Materials and as-built

properties

Thank you

• Contact us–Andrew Hanz

ajhanz@wisc.edu608-262-3835

–http://www.whrp.org