presented at: faa working group meeting atlantic city, nj by: navneet garg date:april 24, 2012...

Presented at: FAA Working Group Meeting

Atlantic City, NJ

By: Navneet Garg

Date: April 24, 2012

Federal AviationAdministrationHigh Temperature

Pavement Test Facility (HTPTF)

2 2Federal AviationAdministration

High Temperature Pavement Test Facility (HTPTF)April 24, 2012



AIRCRAFT TIRE PRESSURE TRENDSAIRCRAFT TIRE PRESSURE TRENDS

Current X Category LimitCurrent X Category Limit

Proposed X Category LimitProposed X Category Limit

Tir

e P

ress

ure

, b

ar



NEED FOR HTPTFNEED FOR HTPTF

• To develop new specifications for P-401 (based on gyratory compactor) and other HMA related projects, R&D has relied mostly on laboratory testing. Full-scale tests are needed so that the performance prediction models for HMA from laboratory tests can be validated/calibrated to the in-situ pavements.

• NAPTF – ideal for testing pavement structure as a whole, not for surface layers.

HTPTF WILL PROVIDE THAT CAPABILITY.HTPTF WILL PROVIDE THAT CAPABILITY.



HVS-A SpecificationsHVS-A Specifications

• Wheel loads - 10,000-lbs (45 kN) to 100,000-lbs Wheel loads - 10,000-lbs (45 kN) to 100,000-lbs (445 kN)(445 kN)

• Pavement temperatures up to 150 deg.F. Pavement temperatures up to 150 deg.F.

• Test speeds - 0.17 mph (0.27 kmph) to 5 mph (8 Test speeds - 0.17 mph (0.27 kmph) to 5 mph (8 kmph). kmph).

• Single and Dual-Wheel configuration.Single and Dual-Wheel configuration.

• Wander Width – 6-feetWander Width – 6-feet



HVS-A SpecificationsHVS-A Specifications

• Single wheel tire to be used will be radial aircraft Single wheel tire to be used will be radial aircraft tires size 52x21.0R22 mounted to steel rims built tires size 52x21.0R22 mounted to steel rims built to government furnished drawings and to government furnished drawings and specifications. specifications.

• The dual wheel assembly - designed to The dual wheel assembly - designed to accommodate tires of smaller sizes (such as accommodate tires of smaller sizes (such as Boeing 737-800) mounted to steel rims built to Boeing 737-800) mounted to steel rims built to government furnished drawings and government furnished drawings and specifications. specifications.



Proposed HMA Research at HTPTFProposed HMA Research at HTPTF

• ““Green” technologies such as Warm Mix Green” technologies such as Warm Mix AsphaltAsphalt

• Stone Matrix AsphaltStone Matrix Asphalt• Asphalt overlays of PCC Asphalt overlays of PCC • Recycled Asphalt PavementRecycled Asphalt Pavement• Polymer Modified BindersPolymer Modified Binders



HVS-A AcquisitionHVS-A Acquisition

• Specifications• Market Research• Status

– April, 2011 : Release of solicitation– May, 2011 : Proposals due– August, 2011 : Technical Evaluation– September, 2011 : Award of Contract



HVS-A AcquisitionHVS-A Acquisition

– February, 2012 : Design & Drawings– October, 2012 : Fabrication– February, 2013 : Assembly– March, 2013 : Commissioning– April, 2013 : FAT and Training– May, 2013 : Shipping– June, 2013 : On-site Assembly, SAT, Training



LENGTH: 125-feet HEIGHT: 13-feet

WIDTH: 16-feet BEAM LENGTH: 67-feet

presented at: faa working group meeting atlantic city, nj by: navneet garg date:april 24, 2012...

Documents

test speeds

kn pavement temperatures

specifications wheel

bar slide

testing pavement structure

htptf green technologies

new specifications

dualwheel configuration