AASHTO TIGAASHTO TIGPromoting the use of Promoting the use of

Precast Concrete Pavement SystemsPrecast Concrete Pavement Systems

AASHTO - Standing Committee on AASHTO - Standing Committee on HighwaysHighways

Hartford, CTHartford, CTOctober 17, 2008October 17, 2008

Timothy J. LaCossTimothy J. LaCoss

Our GenesisOur Genesis 5 PCPS Systems identified in the market, each with 5 PCPS Systems identified in the market, each with

very different attributes, precast designs, and varied very different attributes, precast designs, and varied construction approaches.construction approaches.

No clear definition of types of precast concrete No clear definition of types of precast concrete pavement systems, nor any clear linkages to pavement systems, nor any clear linkages to appropriate treatment selection for repair, appropriate treatment selection for repair, rehabilitation or reconstruction of rigid pavements rehabilitation or reconstruction of rigid pavements using PCPS.using PCPS.

Very little activity in professional organizations Very little activity in professional organizations nationally on PCPS [i.e., PCI, ACI, NPCA, ACPA, ASCE].nationally on PCPS [i.e., PCI, ACI, NPCA, ACPA, ASCE].

Rudimentary guidance available on PCPS, primarily Rudimentary guidance available on PCPS, primarily vendor specific.vendor specific.

Primary Drivers for PCPSPrimary Drivers for PCPS Increased congestionIncreased congestion in our urban in our urban

interstates and arterials with higher VMT interstates and arterials with higher VMT forecast in the near future.forecast in the near future.

Declining conditionDeclining condition of our rigid pavement of our rigid pavement infrastructure (PCC accounts for infrastructure (PCC accounts for approximately 35% of all pavement treatment approximately 35% of all pavement treatment types).types).

Clear need to use Clear need to use Accelerated Construction Accelerated Construction MethodsMethods to minimize work zone lane to minimize work zone lane occupancy. [5 hr work window in NY City occupancy. [5 hr work window in NY City Metro area]Metro area]

Provide an alternative pavement treatment Provide an alternative pavement treatment that that will last 30 to 40 yearswill last 30 to 40 years..

AASHTO TIG Lead States TeamAASHTO TIG Lead States Team

Our MissionOur Mission

To promote the use of Precast Concrete To promote the use of Precast Concrete Pavement Systems for the Repair, Pavement Systems for the Repair, Rehabilitation and Reconstruction of PCC Rehabilitation and Reconstruction of PCC Pavements to transportation agencies and Pavements to transportation agencies and owners nationwide.owners nationwide.

PCPS BasicsPCPS Basics Fabricated off-site Transported to the project site Installed on a prepared sub-base

foundation No field curing or time to achieve

strength Two main classifications of PCPS

– Jointed Systems – Prestressed Systems

PCPS General TerminologyPCPS General Terminology

Slab length

Load transfer mechanism with new or existing pavement

Pretension in transverse direction option (PPCP)

Structural capacityfor handling

PCC thickness, material properties

Existing structure

Post-tensioningoption (PPCP)

Friction reducing interlayer or filler

material (N.T.S.)Grouting materials

Paving and Pavement Paving and Pavement Rehabilitation ApplicationsRehabilitation Applications

Continuous PavingContinuous Paving Intermittent Full Depth Repairs of PCC Intermittent Full Depth Repairs of PCC

PavementsPavements Applications: airport runways & taxiways, Applications: airport runways & taxiways,

heavily traveled highways, ramps, toll heavily traveled highways, ramps, toll plazas, intersections, crosswalks, ports-plazas, intersections, crosswalks, ports-docks, bus pads, smart-sensor docks, bus pads, smart-sensor embedment's, bridge approach slabs, embedment's, bridge approach slabs, pavement under bridges – vertical clearancepavement under bridges – vertical clearance

Benefits of PCPSBenefits of PCPS Cast under ideal conditionsCast under ideal conditions Long life expectancy with low Long life expectancy with low

maintenancemaintenance Placement in a short time Placement in a short time

frame – congestion & safetyframe – congestion & safety Less Risk to owner/contractorLess Risk to owner/contractor Growing documentation of Growing documentation of

performance historyperformance history Established industry, method Established industry, method

and technologyand technology Staged construction is Staged construction is

possiblepossible Installation not affected by Installation not affected by

adverse weather conditionsadverse weather conditions

Supported by FHWA, Supported by FHWA, AASHTO, ACPA, NPCA, PCIAASHTO, ACPA, NPCA, PCI

Reduced Work Zone Reduced Work Zone timeframetimeframe

Choice of surface TexturesChoice of surface Textures Pre-approval of PCPS System Pre-approval of PCPS System

is possibleis possible Pre-existing specifications Pre-existing specifications

are availableare available Generic specifications are Generic specifications are

availableavailable Economically competitive Economically competitive

with alternative PCC with alternative PCC pavement treatmentspavement treatments

Snapshot of Precast Snapshot of Precast Concrete Pavement Systems in the Concrete Pavement Systems in the

USA USA (2006) (2006)

Precast Prestressed Concrete Pavement Precast Prestressed Concrete Pavement SystemSystem– Precast/Prestressed Concrete Paving SystemPrecast/Prestressed Concrete Paving System (non-proprietary) (non-proprietary)

Pre-stressed/Post-tensioned Panel systemPre-stressed/Post-tensioned Panel system FHWA Sponsored (CPTP program)FHWA Sponsored (CPTP program)

Conventionally Jointed Precast Concrete Conventionally Jointed Precast Concrete Pavement SystemsPavement Systems– Uretek USA SystemUretek USA System (proprietary) (proprietary)

Precast Panels on HDP foam with ‘Stitch in Time’ load transfer devicePrecast Panels on HDP foam with ‘Stitch in Time’ load transfer device– Kwik Slab SystemKwik Slab System (proprietary) (proprietary)

Slab on grade, full load transfer, grout bedSlab on grade, full load transfer, grout bed– Ft. Miller – Super-slab SystemFt. Miller – Super-slab System (proprietary) (proprietary)

Slab on grade with full load transfer, grout bedSlab on grade with full load transfer, grout bed– Michigan - Precast Full Depth Replacement/DBRMichigan - Precast Full Depth Replacement/DBR (non- (non-

proprietary)proprietary) Slab on flowable fill or HDP – dowels on topSlab on flowable fill or HDP – dowels on top

Variety of PCPS Systems?

Ft. Miller - SuperSlab™ Prestressed Precast Concrete Pavement

Kwik Slab™ Uretek USA™ FDR/DBR

AASHTO TIG SPECIFICATIONS & AASHTO TIG SPECIFICATIONS & GUIDELINES FOR PCPSGUIDELINES FOR PCPS

1. Guidance and Considerations for the Design of Precast Concrete Pavement Systems2. Generic Specification for Fabricating and Constructing Precast Concrete Pavement Systems3. Generic Specification forPrecast Concrete Pavement System Approval

4. Precast Concrete Pavement Systems forRapid Pavement Repair and Replacement:Basic Information and Commentary

Available at WWW.AASHTOTIG.ORG under the PCPS dropdown menu

www.aashtotig.orgwww.aashtotig.orgWhat’s available on-line?What’s available on-line?

Detailed information about each of these Detailed information about each of these 5 leading Precast Paving Systems.5 leading Precast Paving Systems.

Design Guideline SpecificationsDesign Guideline Specifications Construction Guideline SpecificationsConstruction Guideline Specifications Approval Guidelines for PCPSApproval Guidelines for PCPS Research ReportsResearch Reports Proven Agency SpecificationsProven Agency Specifications

Highways for Life

Agency Partnerships

Federal Highway Administration

Accelerating Innovation for the American Driving Experience

PCPS Projects in 2008 & PCPS Projects in 2008 & 20092009

NYSTA I-95NYSTA I-95 (CT-State line/Mamaroneck River to Cross Bronx (CT-State line/Mamaroneck River to Cross Bronx Expressway)Expressway)

NYSDOTNYSDOT – Nassau-Queens Expressway, Staten Island-West shore – Nassau-Queens Expressway, Staten Island-West shore ExpresswayExpressway

NJDOT I-280 & Rt.21NJDOT I-280 & Rt.21 (Newark) (Newark) Toronto, Canada Toronto, Canada (Downtown, Hwy 427)(Downtown, Hwy 427) Illinois State Toll Authority Illinois State Toll Authority (I-290/I-294 & I-88 & I-355) (I-290/I-294 & I-88 & I-355) Iowa DOT Iowa DOT (precast bridge approaches)(precast bridge approaches) DELDOT, intersection Rt.896 & Rt. 40 DELDOT, intersection Rt.896 & Rt. 40 (Bear, DE) (Bear, DE) Highways for Life ProjectsHighways for Life Projects

– Virginia DOT I-66 Mainline & Interchange RampVirginia DOT I-66 Mainline & Interchange Ramp– Florida DOT (Daytona) - IntersectionsFlorida DOT (Daytona) - Intersections– CALTRANS I-15 - MainlineCALTRANS I-15 - Mainline– NYSDOT I-88 Bridge Approach Slabs (Central NY)NYSDOT I-88 Bridge Approach Slabs (Central NY)

HfL/AASHTO TIG Sponsored Product ShowcaseComing Soon !!!

AASHTO TIG SUCCESSESAASHTO TIG SUCCESSES Developed a nationally recognized forum for PCPSDeveloped a nationally recognized forum for PCPS Succinctly identified various PCPS Systems, their attributes, Succinctly identified various PCPS Systems, their attributes,

their applications and their history.their applications and their history. We have developed generic specifications and guidelines We have developed generic specifications and guidelines

for PCPS, where none existed.for PCPS, where none existed. We have developed relationships with ACI, PCI, NPCA, We have developed relationships with ACI, PCI, NPCA,

ACPA, SHRP and other national organizations and programs ACPA, SHRP and other national organizations and programs to help promote the institutionalizing of PCPS pavement to help promote the institutionalizing of PCPS pavement treatments.treatments.

We have developed and implemented a Marketing Plan for We have developed and implemented a Marketing Plan for PCPS to focus our outreach efforts and have partnered with PCPS to focus our outreach efforts and have partnered with FHWA’s Highways for Life Program to further the outreach FHWA’s Highways for Life Program to further the outreach efforts nationwideefforts nationwide

We have submitted an application for the FHWA/AASHTO We have submitted an application for the FHWA/AASHTO 2010 International Scanning Tour on PCPS Applications.2010 International Scanning Tour on PCPS Applications.

Thank you for your support!Thank you for your support!Timothy J. LaCossTimothy J. LaCoss

Pavement & Materials EngineerPavement & Materials EngineerFHWA-NY DivisionFHWA-NY Division

(518)431-4125, ext.260(518)431-4125, ext.260Timothy.LaCoss@fhwa.dot.govTimothy.LaCoss@fhwa.dot.gov

To find out more details about To find out more details about Precast Pavements look atPrecast Pavements look at

WWW.AASHTOTIG.ORGWWW.AASHTOTIG.ORG