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Road Materials and Pavement Design: an International Journal
1468-0629
Change of publisher at january 1st 2012
 

 ARTICLE VOL 5/3 - 2004  - pp.385-396  - doi:10.3166/rmpd.5.385-396
TITLE
Use of HWD to Study Traffic Effects on Flexible Airport Pavement Structure

ABSTRACT
Heavy Weight Deflectometer (HWD) tests were regularly conducted at the National Airport Pavement Test Facility (NAPTF) in the two wheel paths and on the pavement test item centerline (non-trafficked area) using the FAA owned and operated KUAB HWD Model 240. The purpose of the tests was to study the effect of traffic tests on the pavement structure. The pavement deflection basin was characterized by measuring deflections at the center of the load plate (D0) and at 30-, 60-, 90-, 120-, and 150-cm offsets (D1, D2, D3, D4, and D5). Pavement surface deflections were measured at three different load levels (53.4, 106.8, and 160.2-kN). A "seating" (or conditioning) drop of 160.2-kN was conducted prior to the measured drops at each test location. The "seating" drop peak deflection data were recorded for all test locations. Analyses of deflection data from the trafficked and non-trafficked areas, including the "seating" drop data, showed that the HWD could be effectively used to evaluate the effect of traffic on the pavement structure.


AUTEUR(S)
N.GARG, W.MARSEY

Reçu le 1 décembre 2003.    Accepté le 22 août 2004.

KEYWORDS
Heavy Weight Deflectometer (HWD), Airport Pavement, Deflection, Traffic.

LANGUE DE L'ARTICLE
Anglais

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