Granular-slurry rheology and asphalt compaction

Teng Man; Kimberly Hill

doi:10.1051/epjconf/202124909010

Granular-slurry rheology and asphalt compaction

Teng Man, Kimberly Hill

Civil, Environmental, and Geo- Engineering

Research output: Contribution to conference › Paper › peer-review

3 Scopus citations

Abstract

Hot mixed asphalt (HMA) is a mixture of particles (coarse and fine aggregates) and interstitial fluid (asphalt binder) designed to compact and harden for long-lasting roads. In this study, we implement a two-scale approach to capture the compaction behaviour of hot asphalt mixtures using both a granular-slurry rheology (GSR) at a smaller scale and a discrete element method (DEM) simulation at the scale of a compactor. We show that this modelling effort captures the compaction of HMA with different binder viscosities modified by adding graphene nano-platelets (GNP). This research has the capacity to shed light on how the properties of mixture components can influence compaction efficiency and effectiveness.

Original language	English (US)
DOIs	https://doi.org/10.1051/epjconf/202124909010
State	Published - Jun 7 2021
Event	9th International Conference on Micromechanics on Granular Media, Powders and Grains 2021 - Virtual, Online, Argentina Duration: Jul 5 2021 → Aug 6 2021

Conference

Conference	9th International Conference on Micromechanics on Granular Media, Powders and Grains 2021
Country/Territory	Argentina
City	Virtual, Online
Period	7/5/21 → 8/6/21

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© The Authors, published by EDP Sciences.

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abstract = "Hot mixed asphalt (HMA) is a mixture of particles (coarse and fine aggregates) and interstitial fluid (asphalt binder) designed to compact and harden for long-lasting roads. In this study, we implement a two-scale approach to capture the compaction behaviour of hot asphalt mixtures using both a granular-slurry rheology (GSR) at a smaller scale and a discrete element method (DEM) simulation at the scale of a compactor. We show that this modelling effort captures the compaction of HMA with different binder viscosities modified by adding graphene nano-platelets (GNP). This research has the capacity to shed light on how the properties of mixture components can influence compaction efficiency and effectiveness.",

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AB - Hot mixed asphalt (HMA) is a mixture of particles (coarse and fine aggregates) and interstitial fluid (asphalt binder) designed to compact and harden for long-lasting roads. In this study, we implement a two-scale approach to capture the compaction behaviour of hot asphalt mixtures using both a granular-slurry rheology (GSR) at a smaller scale and a discrete element method (DEM) simulation at the scale of a compactor. We show that this modelling effort captures the compaction of HMA with different binder viscosities modified by adding graphene nano-platelets (GNP). This research has the capacity to shed light on how the properties of mixture components can influence compaction efficiency and effectiveness.

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Y2 - 5 July 2021 through 6 August 2021

ER -

Granular-slurry rheology and asphalt compaction

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