Packing structure of porous asphalt mixture (PAM)

The main research objectives are to have better understanding on the packing structure of porous asphalt mixture (PAM), and the influence of aggregate gradation and shape properties on the packing structure of PAM. A series of laboratory measurements and discrete element method (DEM) simulation were...

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Main Author: Dana Mutiara Kusumawardani
Other Authors: Wong Yiik Diew
Format: Thesis-Doctor of Philosophy
Language:English
Published: Nanyang Technological University 2021
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Online Access:https://hdl.handle.net/10356/152410
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1524102021-09-06T02:34:08Z Packing structure of porous asphalt mixture (PAM) Dana Mutiara Kusumawardani Wong Yiik Diew School of Civil and Environmental Engineering CYDWONG@ntu.edu.sg Engineering::Civil engineering The main research objectives are to have better understanding on the packing structure of porous asphalt mixture (PAM), and the influence of aggregate gradation and shape properties on the packing structure of PAM. A series of laboratory measurements and discrete element method (DEM) simulation were applied to assess the properties of PAM. Four packing parameters were developed from DEM model, namely porosity, coordination number, proportion of effective particles, and average of contact force. The results showed that proportion of 4.75 – 2.36mm fraction is critical on the packing structure of PAM, thereby the proportion of this fraction should be controlled. The recommended proportion of 4.75 – 2.36mm fractions is found to be 5-22%. Furthermore, aggregate shape properties showed important influence on aggregate packing structure and properties of PAM whereby aggregate shape properties determine the degree of stone-on-stone interlocking between particles. Furthermore, DEM simulation is deemed feasible to simulate packing structure of PAM. Doctor of Philosophy 2021-08-12T04:36:50Z 2021-08-12T04:36:50Z 2021 Thesis-Doctor of Philosophy Dana Mutiara Kusumawardani (2021). Packing structure of porous asphalt mixture (PAM). Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/152410 https://hdl.handle.net/10356/152410 10.32657/10356/152410 en This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Civil engineering
spellingShingle Engineering::Civil engineering
Dana Mutiara Kusumawardani
Packing structure of porous asphalt mixture (PAM)
description The main research objectives are to have better understanding on the packing structure of porous asphalt mixture (PAM), and the influence of aggregate gradation and shape properties on the packing structure of PAM. A series of laboratory measurements and discrete element method (DEM) simulation were applied to assess the properties of PAM. Four packing parameters were developed from DEM model, namely porosity, coordination number, proportion of effective particles, and average of contact force. The results showed that proportion of 4.75 – 2.36mm fraction is critical on the packing structure of PAM, thereby the proportion of this fraction should be controlled. The recommended proportion of 4.75 – 2.36mm fractions is found to be 5-22%. Furthermore, aggregate shape properties showed important influence on aggregate packing structure and properties of PAM whereby aggregate shape properties determine the degree of stone-on-stone interlocking between particles. Furthermore, DEM simulation is deemed feasible to simulate packing structure of PAM.
author2 Wong Yiik Diew
author_facet Wong Yiik Diew
Dana Mutiara Kusumawardani
format Thesis-Doctor of Philosophy
author Dana Mutiara Kusumawardani
author_sort Dana Mutiara Kusumawardani
title Packing structure of porous asphalt mixture (PAM)
title_short Packing structure of porous asphalt mixture (PAM)
title_full Packing structure of porous asphalt mixture (PAM)
title_fullStr Packing structure of porous asphalt mixture (PAM)
title_full_unstemmed Packing structure of porous asphalt mixture (PAM)
title_sort packing structure of porous asphalt mixture (pam)
publisher Nanyang Technological University
publishDate 2021
url https://hdl.handle.net/10356/152410
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