Results 201 to 210 of about 2,837 (233)

A Yield Strength Model for Partially Saturated Unbound Granular Material

Road Materials and Pavement Design, 2007
ABSTRACT The predominant mode of distress for unbound pavement layers is the permanent deformation of the layer either through gradual deformation or rapid shear failure. Both these forms of permanent deformation have been linked to the shear strength of the material by researchers.
Hechter L Theyse, Francis TH Legge, Pieter C Pretorius, Herman Wolff   +3 more
openaire   +1 more source

Implementation of shakedown and packing theories for unbound granular materials

2017
Enhancing the load bearing quality of granular layers is fundamental to optimize the structural performance of the pavements. Unbound granular materials are one of the most used materials in the base layers of pavements. There have been growing interests on the behavior of unbound granular material in road base layers. Both design of a new pavement and
Tatek F. Yideti, Andrew Dawson, Bjorn Birgisson   +2 more
openaire   +1 more source

Hollow cylinder apparatus for testing unbound granular materials of pavements

Road Materials and Pavement Design, 2012
Unbound granular materials used in pavement structures are subjected to a complex stress path which includes rotational stresses. Hollow cylinder apparatuses (HCAs) are suitable laboratory devices for reproducing stress paths found in the field. However, as the size of the HCA depends on the size of the granular particles, their use for testing unbound
Bernardo Caicedo, Manuel Ocampo, Luis Vallejo, Julieth Monroy   +3 more
openaire   +1 more source

Effect of loading frequencies on permanent deformation of unbound granular materials

International Journal of Pavement Engineering, 2019
Unbound granular materials (UGMs) show both permanent and resilient deformations under repeated traffic loads.
Ali Alnedawi, Kali Prasad Nepal, Riyadh Al-Ameri   +2 more
openaire   +1 more source

Permanent deformation and resilient modulus of unbound granular materials

2018
Permanent strain and resilient modulus provide direct, quantifiable values that describe two types of deformation (irrecoverable and recoverable) of pavement foundation materials under repeated transient traffic loads. Although the permanent deformation is not directly used in pavement design calculation, it affects the long-term performances of ...
openaire   +2 more sources

Fundamental characterisation of the anisotropic resilient behaviour of unbound granular materials

International Journal of Pavement Engineering, 2019
The paper presents an in-depth investigation of the resilient behaviour of an unbound base material. It is based on the assumption that the material is non-linear and cross anisotropic.
Arieh Sidess, Jacob Uzan, Piere Nigem
openaire   +1 more source

Characterization of Unbound Granular Materials for Pavements

2011
Design and ...
openaire   +1 more source

Some aspects of bounded and unbounded shear flows of granular material

1992
Abstract The present paper examines some features of molecular dynamics type simulations of granular shear flows of smooth, inelastic, spherical particles between two relatively closely spaced rough walls. Profiles of granular temperature, solids fraction and mean velocity, and values of the wall slip velocities are determined for various mean solids
S.B. Savage, R. Dai
openaire   +1 more source

Thermal Effects on Shear Characteristics of Unbound Granular Materials under Drained Conditions

Journal of Geotechnical and Geoenvironmental Engineering - ASCE, 2023
Zhigang Cao, Ye Xingchi, Chuan Gu
exaly  

Monte Carlo simulations of deformation behaviour of unbound granular materials based on a real aggregate library

International Journal of Pavement Engineering, 2023
Jue Li, Junhui Zhang, Anshun Zhang
exaly