TY - GEN
T1 - Embedded Coil Sensors to Investigate the Deformation Behavior of Airfield Pavement Unbound Aggregate Base Courses
AU - Kang, Mingu
AU - Wang, Han
AU - Tutumluer, Erol
AU - Qamhia, Issam I.A.
AU - Villafane, Wilfredo
AU - Garg, Navneet
AU - Murrell, Scott
N1 - Funding Information:
This study was made possible through financial support provided by the Federal Aviation Administration William J Hughes Technical Center to the University of Illinois Urbana- Champaign through grant number 692M15-19-T-0002. Thanks are extended to the FAA NAPTF contractor teams, General Dynamics and Applied Research Associates, who contributed to the test sections’ construction, instrumentation, and data collection and analyses. The contents of this paper reflect the views of the authors, who are responsible for the facts and the accuracy of the data. The contents do not necessarily reflect the official views or policies of the FAA. This paper does not constitute a standard, specification, or regulation.
Publisher Copyright:
© ASCE 2023.All rights reserved.
PY - 2023
Y1 - 2023
N2 - This paper presents findings from the ongoing Construction Cycle 9 tests at Federal Aviation Administration's (FAA) National Airport Pavement Test Facility (NAPTF) with the objective to investigate full-scale flexible pavement test section performance trends under realistic traffic loading with gear/wheel load wander. Inductive coil sensor technology was adopted to investigate the deformation behavior of unbound aggregate base layers instrumented with arrays of coil sensors installed through the full depth. A dual-wheel tridem-axle (3D) gear configuration applied 58,000-lb (26.3-ton) wheel loads to the test sections with a wander pattern consisting of 66 passes arranged in nine lateral wander positions. Throughout the 26,400 passes applied during the traffic testing, permanent deformation trends with depth were collected and analyzed. The depths at which minimum and maximum deformations took place were determined according to the 3 in. (76 mm) vertical intervals measured by vertical coil pairs. Study findings are quite revealing when analyzing the aggregate base course deformations, in comparison to the overall pavement surface deformations, which could identify damage mechanisms in such thick airfield granular layers and help to evaluate thickness design requirements to effectively protect the subgrade.
AB - This paper presents findings from the ongoing Construction Cycle 9 tests at Federal Aviation Administration's (FAA) National Airport Pavement Test Facility (NAPTF) with the objective to investigate full-scale flexible pavement test section performance trends under realistic traffic loading with gear/wheel load wander. Inductive coil sensor technology was adopted to investigate the deformation behavior of unbound aggregate base layers instrumented with arrays of coil sensors installed through the full depth. A dual-wheel tridem-axle (3D) gear configuration applied 58,000-lb (26.3-ton) wheel loads to the test sections with a wander pattern consisting of 66 passes arranged in nine lateral wander positions. Throughout the 26,400 passes applied during the traffic testing, permanent deformation trends with depth were collected and analyzed. The depths at which minimum and maximum deformations took place were determined according to the 3 in. (76 mm) vertical intervals measured by vertical coil pairs. Study findings are quite revealing when analyzing the aggregate base course deformations, in comparison to the overall pavement surface deformations, which could identify damage mechanisms in such thick airfield granular layers and help to evaluate thickness design requirements to effectively protect the subgrade.
KW - Accelerated Pavement Testing
KW - Airfield Pavement
KW - Coil Sensors
KW - Pavement Instrumentation
KW - Permanent Deformation
KW - Unbound Aggregates
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U2 - 10.1061/9780784484890.030
DO - 10.1061/9780784484890.030
M3 - Conference contribution
AN - SCOPUS:85165752158
T3 - Airfield and Highway Pavements 2023: Design, Construction, Condition Evaluation, and Management of Pavements - Selected Papers from the International Airfield and Highway Pavements Conference 2023
SP - 329
EP - 339
BT - Design, Construction, Condition Evaluation, and Management of Pavement
A2 - Garg, Navneet
A2 - Bhasin, Amit
A2 - Vandenbossche, Julie M.
PB - American Society of Civil Engineers
T2 - 2023 International Conference on Airfield and Highway Pavements
Y2 - 14 June 2023 through 17 June 2023
ER -