Development of a combined micromechanics & damage mechanics model for the design of asphalt pavements
|Title:||Development of a combined micromechanics & damage mechanics model for the design of asphalt pavements||Authors:||Tabakovic, Amir
Sorelli, L. G.
Gilchrist, M. D.
|Permanent link:||http://hdl.handle.net/10197/2303||Date:||Apr-2006||Abstract:||Asphalt is a complex, heterogeneous material that is composed of differently sized aggregates, binder and air voids: in other words, it is a particulate reinforced composite. The focus of the present work is to investigate the structural effectiveness of this material composition following the introduction of recycled asphalt pavement (RAP) into the mix. The virgin mortar mix (i.e., matrix) consists of an asphalt binder, sand and crushed rock fines (CRF), while the RAP-containing mix additionally includes fine aggregates ranging in size from fine dust (< 75μm diameter) up to small particles (< 3.35mm diameter). The stress distribution throughout such a material and the resulting mechanical response is strongly related to the interaction between the mix constituents. Previous work has shown that this performance is less influenced by the presence of larger aggregate than it is by the mortar composition and it is for this reason that the present work attempts to model damage evolution in various mortar mixes.||Funding Details:||Other funder||Type of material:||Conference Publication||Keywords:||Binder course mortar mix; Finite element modelling; Continuum damage mechanics; Uniaxial compression; Uniaxial tension||Subject LCSH:||Pavements, Asphalt--Testing
|Language:||en||Status of Item:||Not peer reviewed||Conference Details:||Joint Conference of the Association for Computational Mechanics in Engineering (UK) and the Irish Society for Scientific and Engineering Computation, 19-20 April 2006, QUB, Belfast|
|Appears in Collections:||Mechanical & Materials Engineering Research Collection|
Critical Infrastructure Group Research Collection
Civil Engineering Research Collection
Show full item record
Page view(s) 20150
This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.