Abstract
Performance-engineered mix designs and performance-based specifications for asphalt mixtures rely on not only establishing performance properties but relevance and representation of field performance of asphalt mixtures. This paper presents a comparative evaluation of various performance indices from fracture tests with respect to asphalt mix properties and field reflective cracking performance of asphalt overlays. Fracture energy (Gf) is currently the primary index used when evaluating the disk-shaped compact tension (DCT) test results. However, Gf does not directly take into consideration the behavior of the post peak region of the load-displacement curve, which may indicate the mixture’s ability to resist crack propagation and provide insight into fracture processes (e.g., crack growth velocity). It is possible to have two DCT specimens with similar Gf values but significantly different load-displacement responses. This study evaluates Gf in addition to three other indices that consider the full load-displacement behavior: fracture strain tolerance (FST), rate-dependent cracking index (RDCI) and a newly proposed DCTIndex. A total of 5 asphalt mixtures and corresponding reflective cracking performance of these mixtures from 4 full-scale pavement test sections (asphalt overlay on Portland cement concrete) are used to compare field performance and equivalent Gf, FST, RDCI and DCTIndex values for the various overlay sections. Results from this study provide insight into the applicability of the various indices from DCT testing in performance-engineered mix design approaches.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
ASTM D7313–13.: Standard Test Method for Determining Fracture Energy of Asphalt-Aggregate Mixtures Using the Disk-Shaped Compact Tension Geometry
Zhu, Y., et al.: Comprehensive evaluation of low-temperature fracture indices for asphalt mixtures. Road Mater. Pavement Design 18(4) 467–490 (2017)
Nemati, R., et al.: Development of a rate-dependent cumulative work and instantaneous power-based asphalt cracking performance index. Road Mater. Pavement Design. 1–17 (2019)
Oshone, M., Dave, E.V., Sias, J.E.: Asphalt mix fracture energy based reflective cracking performance criteria for overlay mix selection and design for pavements in cold climates. Constr. Build. Mater. 211, 1025–1033 (2019)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Haslett, K.E., Dave, E.V., Sias, J.E. (2022). Evaluation of Cracking Performance Indices from Disk-Shaped Compact Tension Testing. In: Di Benedetto, H., Baaj, H., Chailleux, E., Tebaldi, G., Sauzéat, C., Mangiafico, S. (eds) Proceedings of the RILEM International Symposium on Bituminous Materials. ISBM 2020. RILEM Bookseries, vol 27. Springer, Cham. https://doi.org/10.1007/978-3-030-46455-4_98
Download citation
DOI: https://doi.org/10.1007/978-3-030-46455-4_98
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-46454-7
Online ISBN: 978-3-030-46455-4
eBook Packages: EngineeringEngineering (R0)