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Load Transfer Theoretical Analysis of a Rigid Aircraft Pavement Contraction Joint Using a Novel Approach for Crack Characterization
Journal article   Open access   Peer reviewed

Load Transfer Theoretical Analysis of a Rigid Aircraft Pavement Contraction Joint Using a Novel Approach for Crack Characterization

Sean Jamieson and Greg White
Materials, Vol.19(2), pp.1-18
2026
PMID: 41598087
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materials-19-003766.11 MBDownloadView
Published VersionCC BY V4.0 Open Access

Abstract

airport load transfer rigid pavement aggregate interlock finite element modeling
The contraction joints within paver runs are important for the design and construction of rigid aircraft pavements. These joints are typically un-doweled and sawn into the pavement to induce a crack. The joints control shrinkage cracking during curing, allow for thermal expansion and contraction, and provide load transfer through aggregate interlock joint stiffness between adjacent slabs. Aggregate interlock joint stiffness is typically modeled by assigning a spring element between two slabs that is indicative of the stiffness of the joint. However, that simplification may not accurately represent the complex interaction of irregularly shaped concrete faces and joint openings. Consequently, previous researchers have recommended modelling aggregate interlock stiffness based on physical crack shape. This research uses a novel approach to characterize crack shape through an idealized two-dimensional sinusoidal shape. Once the crack shape was defined, finite element methods were used to determine the significance of load, sublayer, and crack shape factors on load transfer values. It was determined that joint opening was the most significant factor for aggregate interlock load transfer. Future research is recommended to further validate the model against a larger data set, to confirm if the two-dimensional idealization of crack shape is an appropriate estimation of field conditions.

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Web Of Science research areas
Chemistry, Physical
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Physics, Applied
Physics, Condensed Matter
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