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Development of a combined micromechanics & damage mechanics model for the design of asphalt pavements
File(s)
File | Description | Size | Format | |
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12.pdf | 274.9 KB |
Date Issued
April 2006
Date Available
05T14:26:58Z August 2010
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.
Sponsorship
Other funder
Other Sponsorship
Enterprise Ireland (ATRP)
Type of Material
Conference Publication
Subject – LCSH
Pavements, Asphalt--Testing
Asphalt--Microstructure
Binders (Materials)--Testing
Language
English
Status of Item
Not peer reviewed
Description
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
This item is made available under a Creative Commons License
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