Skip to main content

Research Repository

Advanced Search

Factors affecting hydraulic conductivity of asphalt mixture

Garcia, A.; Aboufoul, M.; Aboufoul, Mustafa; Garcia, Alvaro

Authors

A. Garcia

M. Aboufoul

Mustafa Aboufoul



Abstract

In this paper, the topological properties of air voids in asphalt mixture: air void content, average void diameter, Euler number, genus, enclosed cavities, percolation number, aspect ratio, circularity and tortuosity were analysed using X-ray tomography scans and related to the hydraulic conductivity of a wide range of asphalt mixtures representative of those commonly used in practice. Moreover, a model for the hydraulic conductivity of asphalt mixture that is valid for the whole range of air void content was proposed. The model is based on statistical and physical considerations that lead to a system of functional equations. Finally, the model was related to experimental and literature data. It was observed that the range of asphalt mixtures studied hydraulic conductivity is related mostly to the air void content, while the topological parameters (e.g. tortuosity or aspect ratio) are not the primary factors affecting hydraulic conductivity. For this reason, the hydraulic conductivity of asphalt mixture commonly used in practice can be predicted using a simple hyperbolic equation with fixed, known, parameters.

Citation

Garcia, A., Aboufoul, M., Aboufoul, M., & Garcia, A. (2017). Factors affecting hydraulic conductivity of asphalt mixture. Materials and Structures, 50(2), https://doi.org/10.1617/s11527-016-0982-6

Journal Article Type Article
Acceptance Date Dec 1, 2016
Online Publication Date Dec 22, 2016
Publication Date 2017
Deposit Date Jan 5, 2017
Publicly Available Date Jan 5, 2017
Journal Materials and Structures/Materiaux et Constructions
Print ISSN 1359-5997
Electronic ISSN 1871-6873
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
Volume 50
Issue 2
DOI https://doi.org/10.1617/s11527-016-0982-6
Keywords Hydraulic conductivity, Air void content, Asphalt mixture, X-ray CT, Weibull model, Functional equations
Public URL http://eprints.nottingham.ac.uk/id/eprint/39600
Publisher URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-85006914048&doi=10.1617%2fs11527-016-0982-6&partnerID=40&md5=616ac4df2c38eebcf0de3de332df0757
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

Files


art%3A10.1617%2Fs11527-016-0982-6.pdf (1.3 Mb)
PDF

Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





You might also like



Downloadable Citations