November-December 2022 - 20

PAVEMENT MAINTENANCE
had a history of pavements achieving
life spans longer than the accepted
20 years.
A 2013 assessment by Greer, et
al., titled " Design, Construction and
Maintenance of Concrete Pavements
at the World's Busiest Airport, " indicated
that ATL's two main departure
runways, which are constructed of
concrete, had " served almost double
their original design lives with each
serving more than 5 million departures. "
One of the runways (RW-8R)
had been replaced in 2006 at an age
of 37 years. The second runway
(RW-9L), at 38 years old, was still
in service at the time of the 2013
report and was expected to serve
several more years. Steps taken by
ATL to prolong pavement life were
cited by the paper's authors to include
innovations in joint design, dowel
placement, and slab geometry, along
with the use of subsurface underdrains.
Also critical to the success of
the runways was the use of a pavement
management system (PMS) to
evaluate and maintain the pavements.
ATL implemented these same
innovations during later pavement
construction projects and they have
also been used at other airports to
achieve similar improvements in
longevity, according to the paper's
authors. Since the time of the publication,
some concrete replacement
has occurred at ATL, but no fullwidth
concrete runway pavement
replacement has been required.
" Contributing to long pavement life
at ATL are the use of annual airfield
pavement repair contracts, as well as
the use of Class F fly ash to address
alkali-silica reactivity, " said Quintin
ABOUT THE AUTHOR
KRISTIN DISPENZA
Kristin Dispenza has been a member of
the AOE team since 2013, developing
trends articles, case studies and other
PR materials. She received a Bachelor
of Science degree from The Ohio State
University College of Engineering/School
of Architecture and has more than 25
years of writing and editorial experience.
Construction at Dare County Regional
Airport entailed full depth removal of the
existing concrete and replacement with
15,700 square yards of new concrete,
constructed to a depth of 8.5 inches.
COURTESY JOHN MASSEY TALBERT-BRIGHT
Watkins, vice president - office executive,
Michael Baker International.
In 2019, the John F. Kennedy
International Airport in New York
City reconstructed runway 13L-31R
- one of the airport's four runways
and one that receives one-third of the
airport's arrivals - using concrete
as an alternative to asphalt. A press
release from The Port Authority of
New York and New Jersey noted that
the concrete runway is expected to
provide " long-term durability that
will minimize future operational
impacts and meet current Federal
Aviation Administration (FAA) design
standards. The concrete application
has a 40-year life span, four times
longer than the previous asphalt
paving. "
While large airports reap the economies
of scale associated with concrete
pavement's benefits, small airports are
also taking life cycle into consideration
when designing for resilience, sustainability
and cost-effectiveness.
The Dare County Regional
Airport (MQI), located on Roanoke
Island in the Outer Banks area of
North Carolina, replaced its apron in
2021-22. The existing concrete pavement
had been in service for nearly 80
years and by 2021 was seeing more
than 32,000 landings and takeoffs each
year. Because of concrete's expected
life span - 75-to-80 years as opposed
to asphalt's 20-25 years - the airport
20 \ AIRPORT BUSINESS / NOVEMBER/DECEMBER 2022
authority chose concrete pavement for
the new apron. Construction entailed
full depth removal of the existing concrete
and replacement with 15,700
square yards of new concrete, constructed
to a depth of 8.5 inches.
Runway 17/35 at the North Platte
Regional Airport (LBF) in North
Platte, Nebraska, received an 8-inch
concrete overlay in 2011. Existing
pavement consisted of 70-year-old
concrete overlaid with 4 to 12 inches
of asphalt. The design and engineering
team considered several options
for the runway's repair, but because
of the runway's proximity to the
Platte River and the heaving associated
with the area's high water table,
chose concrete overlay as the best
solution. Dowels were installed in the
concrete pavement joints to further
resist heaving. The cost of the overlay
was less than half the cost of complete
reconstruction. North Platte also used
concrete during an expansion of its
main aircraft apron. For this project,
the existing 26,000-square-yard apron
was overlaid with 8 inches of unbonded
concrete while the 21,800-squareyard
expansion was constructed of
10-inch concrete.
As the FAA points out, extended
pavement life has benefits beyond
sustainability and resilience. It saves
taxpayer dollars and reduces delays
associated with pavement reconstruction.
It also allows airports to serve a
greater number of passengers. Looking
back at pavements that have stood the
test of time, it becomes clear that the
most sustainable product is one that
doesn't need to be replaced or repaired
frequently. 

November-December 2022

Table of Contents for the Digital Edition of November-December 2022

Inside the Fence
Industry Update
Optimize Airport Efficiency and Safety When Winter Weather Strikes
Long-Life Airport Pavements Set a Standard for Sustainable Infrastructure
Airport Guru
Product Profile
COVER STORY Top 40 Under 40
November-December 2022 - 1
November-December 2022 - 2
November-December 2022 - 3
November-December 2022 - 4
November-December 2022 - Inside the Fence
November-December 2022 - Industry Update
November-December 2022 - 7
November-December 2022 - 8
November-December 2022 - 9
November-December 2022 - 10
November-December 2022 - 11
November-December 2022 - 12
November-December 2022 - 13
November-December 2022 - Optimize Airport Efficiency and Safety When Winter Weather Strikes
November-December 2022 - 15
November-December 2022 - 16
November-December 2022 - 17
November-December 2022 - Long-Life Airport Pavements Set a Standard for Sustainable Infrastructure
November-December 2022 - 19
November-December 2022 - 20
November-December 2022 - 21
November-December 2022 - Airport Guru
November-December 2022 - 23
November-December 2022 - Product Profile
November-December 2022 - 25
November-December 2022 - 26
November-December 2022 - 27
November-December 2022 - COVER STORY Top 40 Under 40
November-December 2022 - 29
November-December 2022 - 30
November-December 2022 - 31
November-December 2022 - 32
November-December 2022 - 33
November-December 2022 - 34
November-December 2022 - 35
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November-December 2022 - 37
November-December 2022 - 38
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