Modeling and experimental measurements of strain distribution in asphalt mixes

E Masad, N Somadevan, HU Bahia… - Journal of Transportation …, 2001 - ascelibrary.org
The objective of this study is to experimentally and theoretically estimate the strain
distribution in an asphalt binder as it exists in hot mix asphalt (HMA). This is important to …

X-ray tomography to characterize air void distribution in superpave gyratory compacted specimens

L Tashman, E Masad, J D'Angelo… - … Journal of Pavement …, 2002 - Taylor & Francis
Air void distribution has considerable influence on the mechanical properties of asphalt
mixtures. Several factors such as the compaction effort, method of compaction, aggregate …

Micromechanics-based analysis of stiffness anisotropy in asphalt mixtures

E Masad, L Tashman, N Somedavan… - Journal of Materials in …, 2002 - ascelibrary.org
The mechanical behavior of many bound granular materials such as asphalt mixtures is
anisotropic in nature. However, the majority of the current mechanical tests and analytical …

Microstructural finite-element analysis of influence of localized strain distribution on asphalt mix properties

E Masad, N Somadevan - Journal of engineering mechanics, 2002 - ascelibrary.org
Hot mix asphalt (HMA) is a composite material that consists of mineral aggregates, asphalt
binders, and air voids. A finite element model of the HMA microstructure is developed to …

[图书][B] Discrete element modeling of railroad ballast using imaging based aggregate morphology characterization

H Huang - 2010 - search.proquest.com
Ballast is an essential layer of the railroad track structure, and provides primarily drainage
and load distribution. In general, ballast aggregates are considered as uniformly graded …

Quantification of biasing effects during fatigue tests on asphalt mixes: non-linearity, self-heating and thixotropy

S Mangiafico, C Sauzeat, H Di Benedetto… - Road Materials and …, 2015 - Taylor & Francis
Various phenomena other than fatigue (so-called “biasing effects”) occur during laboratory
fatigue tests on asphalt mixes because of cyclic loading applications, thus altering …

A nonlinear constitutive relationship for asphalt binders

R Delgadillo, HU Bahia, R Lakes - Materials and structures, 2012 - Springer
A nonlinear constitutive relationship was developed for asphalt binders. Two binders, one
polymer modified and one unmodified, were tested in shear using creep and recovery …

Using gyratory compactor to measure mechanical stability of asphalt mixtures

AFF Mahmoud, H Bahia - 2004 - minds.wisconsin.edu
In this study several asphalt mixtures were produced using four different aggregate sources,
different asphalt contents, and different aggregate gradations. Every mixture was compacted …

The relationship between nonlinearity of asphalt binders and asphalt mixture permanent deformation

R Delgadillo, HU Bahia - Road Materials and Pavement Design, 2010 - Taylor & Francis
The present work deals with the influence of the nonlinear creep response of asphalt
binders on asphalt mixture permanent deformation. Asphalt binders were tested using a …

Nonlinear viscoelastic response of crumb rubber modified asphalt binder under large strains

S Gulzar, BS Underwood - Transportation Research Record, 2020 - journals.sagepub.com
Agencies have been increasing their use of polymer modified asphalt binders in recent
years to address performance issues and lengthen the useful life of their pavements. When …