WHAT IS THE CORRECT WAY OF PAVING MULITPLE LAYERS OF ASPHALT? 1

[DELBZ]

[URL unfurl="true"]https://res.cloudinary.com/engineering-com/image/upload/v1728607583/tips/IMG_2117_lbue2q.heic[/url][URL unfurl="true"]https://res.cloudinary.com/engineering-com/image/upload/v1728607600/tips/IMG_2117_xbqamt.heic[/url]

Hi. Our circa 1980's pavement are being replaced now. The contractor is proposing to pave using multiple layers of asphalt materials in the west to east direction. This is along the travel path of aircraft along taxilane K from runway 6l/24R. Our previous apron pavment had dips. We di d not see unusual discrepancied in the underlying base when the material was ripped out. The inly suspect is the manner of placement in the 1980's.

Question: Does it really matter how direction of the layers of asphalt is placed? Will placing the multiple layers transverse to the direction of the aircraft landing gears be of lesser cold joints? Thank you for your attention. Will really appreciate your expertise.

 

[Andries]

Hi,

I don't think that this forum is appropriate to your query; try road construction or similar, if there are such forums.

Regards,

Andries

 

[WKTaylor]

There are FAA documents for airfield design. Aspects of apron, taxiway and runway paving are discussed in some detail in AC 150 series...

FAA Advisory circulars...

https://www.faa.gov/regulations_policies/advisory_circulars/

AC 150 (series) AIRPORTS...
Aircraft Rescue and Fire Fighting (ARFF)
Airport Compliance/Obligations
Airport GIS
Airport Improvement Program (AIP)
Airport Lighting
Airport Planning
Airport Safety
Certification of Airports (Part 139)
Design, Construction, and Maintenance - General
Environmental
Federal Aid to Airports
Passenger Facility Charge (PFC)
Pavement Design
Surplus Airport Property Conveyance Programs

Search Examples...
AC 150/5300-13B Airport Design
AC 150/5335-*
AC 150/5370-*

For aircraft operation [tire-bearing] on pavements...
SAE AIR1780 Aircraft Flotation Analysis
SAE AIR4243 Landing Area/Landing Gear Compatibility - A Brief History of SAE/Corps of Engineers Cooperation
SAE ARP1821 Aircraft Ground Flotation Analysis Methods

OTHER...
UFGS-32 12 15.13 HOT-MIX ASPHALT AIRFIELD PAVING
UFGS-32 12 15.16 WARM-MIX ASPHALT AIRFIELD PAVING
UFGS-32 01 16.74 IN PLACE HOT REUSED ASPHALT PAVING
UFC 3-250-03 O&M MANUAL: STANDARD PRACTICE FOR FLEXIBLE PAVEMENTS
UFGS-32 12 17.19 FUEL RESISTANT ASPHALT PAVING FOR AIRFIELDS - SURFACE COURSE
UFGS-32 12 15.16 STONE MATRIX ASPHALT (SMA) FOR AIRFIELD PAVING
UFGS-32 01 17.62 PAVING FABRIC INTERLAYER
UFC 3-270-08 PAVEMENT MANAGEMENT

Regards, Wil Taylor
o Trust - But Verify!
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation, Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", HBA forum]
o Only fools and charlatans know everything and understand everything." -Anton Chekhov