@inproceedings{753a78006c9146728abc4d3be6cbc032,
title = "Stiffness and permanent deformation characteristics of open-graded unbound granular materials",
abstract = "This paper presents the investigation of the deformation characteristics of two Open-Graded (OG) Unbound Granular Materials (UGMs) that are generally used in permeable pavement structures. Based on multistage Repeated-Load Triaxial (RLT) tests, the stiffness and resistance against Permanent Deformation (PD) of these materials were compared to their well graded (standard) counterparts. The OG UGMs showed similar stiffness characteristics as standard UGMs. On the other hand, the resistance against PD was slightly worse than the standard UGMs in a relatively dry state. However, the OG UGMs showed less sensitivity to moisture variation, yielding similar performance to that of standard materials at higher moisture content. The parameters of a stiffness model and a PD model were evaluated for these materials which may be used for prediction of rutting, estimating bearing capacity and for layer thickness design, using any suitable pavement design software.",
author = "Rahman, \{M. S.\} and S. Erlingsson and F. Hellman",
note = "Publisher Copyright: {\textcopyright} 2017 Taylor \& Francis Group, London.; 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017 ; Conference date: 28-06-2017 Through 30-06-2017",
year = "2017",
language = "English",
isbn = "9781138295957",
series = "Bearing Capacity of Roads, Railways and Airfields - Proceedings of the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017",
publisher = "CRC Press/Balkema",
pages = "151--157",
editor = "Andreas Loizos and Al-Qadi, \{Imad L.\} and Scarpas, \{A. Tom\}",
booktitle = "Bearing Capacity of Roads, Railways and Airfields - Proceedings of the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017",
}