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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| Format: | Thesis-Doctor of Philosophy |
| Language: | English |
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Nanyang Technological University
2021
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| Online Access: | https://hdl.handle.net/10356/152410 |
| _version_ | 1826128952132894720 |
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| author | Dana Mutiara Kusumawardani |
| author2 | Wong Yiik Diew |
| author_facet | Wong Yiik Diew Dana Mutiara Kusumawardani |
| author_sort | Dana Mutiara Kusumawardani |
| collection | NTU |
| 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. |
| first_indexed | 2024-10-01T07:33:16Z |
| format | Thesis-Doctor of Philosophy |
| id | ntu-10356/152410 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:33:16Z |
| publishDate | 2021 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-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 |
| spellingShingle | Engineering::Civil engineering Dana Mutiara Kusumawardani Packing structure of porous asphalt mixture (PAM) |
| title | 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_short | Packing structure of porous asphalt mixture (PAM) |
| title_sort | packing structure of porous asphalt mixture pam |
| topic | Engineering::Civil engineering |
| url | https://hdl.handle.net/10356/152410 |
| work_keys_str_mv | AT danamutiarakusumawardani packingstructureofporousasphaltmixturepam |