Guidelines for Use of Highway Specifications for Airport Pavements

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Guidelines for Use of Highway Specifications for
Airport Pavements
Bob Boyer, PhD, PE Airport Pavement
Consultant Mark Buncher, PhD, PE Director
Engineering, Asphalt Institute
4/15/2010
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HW Specs For HMA Airport Pavement

• PROJECT OVERVIEW
• AAPTP Project 06-05
• DELIVERABLE Comprehensive Guide for
  Practicing Airport Designers
• How to Modify SSHP Specs
• For Acceptable SSAP Specs for HMA Projects
• lt60,000 Aircraft Gross Weight
• FINAL REPORT May, 2009
• Available at www.aaptp.us

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HW Specs For HMA Airport Pavement

• DEFINITIONS
• State Standard Highway Pavement (SSHP)
  specifications SSHP specifications is used
  throughout this document to identify the current
  State specifications for HMA highway pavements
  covering materials, mix design and selection,
  manufacture, transport, placement, compaction and
  acceptance of HMA pavement as well as the
  contractors quality control plan and
  requirements.
• State Standard Specifications Manual (SSSM) -
  SSSM is used throughout this document to identify
  the current edition of the State Standard
  Specifications of Highway Construction, State
  Standard Specifications for Transportation
  Systems, State Standard Specification for Road
  and Bridge Construction, or any other title used
  for a SSSM.
• State Standard Airport Pavement (SSAP)
  specifications SSAP specifications is used
  throughout this document to identify a State
  specifications for HMA airport pavements
  developed in accordance with the guidance
  provided by AC 150/5100-13A and submitted for FAA
  approval. The SSAP must comply with critical
  requirements for airport pavements and
  instructions on how to reference, or insert,
  portions of SSHP specifications.

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HW Specs For HMA Airport Pavement

• Using SSHP Specifications
• VS
• FAA Item P-401 or P-401 (SP) Specifications
• CONSIDERATIONS GA PAVEMENT lt60,000
• Low Traffic Volume
• Distress Types Almost Exclusively Environmental
• Foreign Object Damage (FOD)
• BENEFITS
• High Quality Construction Familiarity
• More Economical Pavement vs P-401
• Long Term Performance Updated Technology

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HW Specs For HMA Airport Pavement

• BACKGROUND
• REVIEW SPECIFICATIONS
• SSHP Specifications
• FAA AC 150/5370-6D P-401, P-401(SP), P-403
• FAA AC 150/5100-13A Dev State Standards Non
  Primary
• CONDUCT INTERVIEWS
• FAA Region Engineers
• State Aviation Offices
• PUBLIC LAW TITLE 49 U.S. CODE 47114(d)(5)2000
  TITLE 49 U.S. CODE 47105(C) 2005
• ...FAA ORDERS (5300.1F)

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HW Specs For HMA Airport Pavement

• CONCERNS
• LIABILITY
• 10-Year Federal Funding Moratorium
• MODIFICATION TO STANDARD
• - No Motivation to Deviate from P-401
• PERFORMANCE
• Meet FAA P-401 or P-401 (SP) Proven Quality
• -Requirements
• Owner QA
• Joint Density
• Grade/Smoothness

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HW Specs For HMA Airport Pavement

• APPROACH
• Draft FAA Engineering Brief (EB)
• Interim Guidance to Develop SSAP Specs
• Optimize Use of SSHP Specs Provisions
• Comply with All SSSM Sections, as Applicable
• FOR
• Aircraft Gross Weight , lt60,000
• AND
• Address Critical Elements for Airfield Pavements
• Employ Marshall and/or Superpave Mixtures

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Draft EB-XX The Guideline

• SSAP CHECKLIST FORMAT for EB
• Description Traffic
• Materials
• Composition
• Construction
• Acceptance
• Quality Control
• Measurement
• Payment

Follows Format of Most State Specifications
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Draft EB-XX The Guideline

• Description Traffic
• Description
• Definition, Explanations, Etc.
• Terminology Examples
• Department/Airport Manager
• Engineer/Airport Owner, or OAR
• Roadway/Airport Pavement
• Traffic - Table 1.docx

Traffic Level Million ESALs Aircraft Gross Weight, ()
A lt0.3 lt12,500
B 0.3 to lt3.0 12,500 to lt60,000
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Draft EB-XX The Guideline

• Materials
• General Requirements
• Aggregates
• SSHP/SSSM, as applicable
• Asphalt Binder
• AASHTO M-320 Performance Grade
• Any additional SSHP, or SSSM Requirements
• Normally State DOT Standard Grade
• Grade Bump for Traffic Level B

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Draft EB-XX The Guideline

• Mix Composition
• If State Spec Uses Marshall
• 50 Blows for Traffic Level A or B
• Gradation use P-401 or P-403 Bands
• If State Spec Uses Superpave
• 50 gyrations (Traffic Lev A) or 65 gyrations
  (Traffic Lev B)
• Gradation AASHTO M-323 Control Points
• Mix Selection
• Base/Intermediate Course 37mm, 25mm or 19mm
• Leveling Course 12.5mm or 9.5mm
• Surface Course Fine-graded only 19mm or 12.5mm
• RAP Limits (per AAPTP 05-06)
• 15-30 depending on whether surface or base mix,
  and on recovered PG grade of RAP binder
• JMF Submittal Requirements
• SSHP Specs sufficient

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Draft EB-XX The Guideline

• Construction
• Plants and equipment
• Rely on SSHP spec
• Mandatory test section requirements
• On initial production lot of SSHP
• Grooving criteria (if shown on plans)
• ¼ wide x ¼ deep at 1.5 c-c spacing
• Amend SSHP
• High quality longitudinal joints a must!
• Amend SSHP for joint density

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Draft EB-XX The Guideline

• Material Acceptance
• All Acceptance and Sampling and Testing Must Be
  Accomplished By the Owner, Separate From the
  Contractors QC
• Plant Produced Material (PPM)
• PPM Pass 8 Sieve Optional
• PPM Pass 200 Sieve Optional
• PPM - Air Voids Mandatory
• Field Placed Material (FPM)
• FPM Mat Density Mandatory
• FPM - Joint Density Mandatory
• FPM Thickness Optional
• FPM Grade Mandatory
• FPM Smoothness Mandatory

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Draft EB-XX The Guideline

• Contractor Quality Control
• QC Program
• Laboratory Facility ASTM D3666
• Quality Control Testing
• AC, Gradations, Moisture Contents, Etc.
• Control Charts
• IAW SSHP Specs SSSM

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Draft EB-XX The Guideline

• Measurement
• Measured by of Tons HMA
• Measured on Accepted Work
• Or IAW Other Measurement Specified by SSHP, or
  Other Sections Referenced in SSSM

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Draft EB-XX The Guideline

• Payment
• Payment IAW Unit Price X Measurement Unit IAW
  Mandatory Items
• Total Project Payment
• Not to Exceed 100 of Total
• May be used as Offset Lot to Lot
• PWL Not Mandatory Requirement

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Draft EB-XX The Guideline

• SSAP CHECKLIST FORMAT for EB
• SUMMARY
• Description Traffic
• Materials
• Composition
• Construction
• Acceptance
• Quality Control
• Measurement
• Payment

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Follows Format of Most State Specifications
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Draft EB Refined and Validated

• 10 Different State Test Cases
• AI Regional Engineers developed SSAP specs by
  applying the Draft EB to their respective SSHP
  spec
• Draft EB improved validated thru this process
• SSAPs were developed for
• FL, MN, PA, TX, VA, CA, MT, OH, WA, MO
• In Appendices of Final Report
• Not official SSAPs, but examples
• Final Report Documents Project www.aaptp.us
• 58 pages total
• Last 17 pgs is the Final Draft FAA Engineering
  Brief
• Appendices are several hundred pages

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AI Regional Engineer Offices Guideline
Validation
Alaska
Sandy Brown
Dave Johnson
Mark Blow
Carlos Rosenberger
Wayne Jones
Bob Horan
Mark Buncher, AI HQ
Bob Humer
Hawaii
Danny Gierhart
Bob Boyer, AI Ret
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AAPTP Project 06-05, Guidelines for Use of
Highway Specifications for Airport Pavements
Draft EB-XX The Guideline For lt60,000 AGW
Questions????
Bob Boyer, PhD, PE Airport Pavement
Consultant Mark Buncher, PhD, PE Director
Engineering, Asphalt Institute
1/10/2010
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