00757490

Component

https://doi.org/10.3141/1639-11

http://scholar.google.com...ough&publication_year=1998

The rolling dynamic deflectometer (RDD) is a powerful tool for use in managing airport pavements. With the RDD, continuous deflection profiles of runways and taxiways can be efficiently and effectively measured. These continuous profiles, both in the longitudinal and transverse directions, provide valuable information about the condition of the pavement system. The profiles are especially valuable because the entire pavement is tested and characterized rather than approximating the system with a limited number of discrete measurements to represent the entire pavement. The capabilities of the RDD were demonstrated by testing pavements at Dallas-Fort Worth International Airport. One existing runway, one existing taxiway, and a newly constructed (but not yet opened) runway were tested. The conditions of the different intact pavement sections and the various pavement joints are readily shown in the measured deflection profiles. In most cases, heavily trafficked pavement sections showed higher deflections than comparable sections with lower traffic, with the lowest deflections measured on the newly constructed runway. However, one recently constructed runway extension showed unusually high deflections, especially at the joints. The taxiway that was tested generally exhibited lower deflections than the operating runway. In the cases of the in-service pavements, transverse profiles clearly showed the softening of the highly trafficked central portion of the pavement.

This paper appears in Transportation Research Record No. 1639, Recent Pavement Research Issues.

English

p. 102-111

1998

Transportation Research Record

0309065119

Figures (12) ; Photos (1) ; References (4) ; Tables (1)

Airport runways; Deflection; Deflectometers; Evaluation; Pavement management systems; Pavements; Taxiways

Dallas-Fort Worth International Airport

Pavement conditions; Profiles; Rolling dynamic deflectometers

Aviation; Design; Highways; Pavements; Terminals and Facilities; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB, ATRI

Dec 7 1998 12:00AM

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