Effect of aggregate gradation on the stiffness of asphalt mixtures
Aggregate gradation plays an important role in the behaviour of asphalt mixtures. Packing of aggregate is a very important factor that will be affected by changing the aggregate gradation. Many researchers have investigated different ways of describing packing both theoretically and practically. Bai...
| Main Authors: | , , , |
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| Format: | Article |
| Published: |
De Gruyter Open
2015
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| Online Access: | https://eprints.nottingham.ac.uk/38617/ |
| _version_ | 1848795652670095360 |
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| author | Al-Mosawe, Hasan Thom, Nick Airey, Gordon Ai-Bayati, Amjad |
| author_facet | Al-Mosawe, Hasan Thom, Nick Airey, Gordon Ai-Bayati, Amjad |
| author_sort | Al-Mosawe, Hasan |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Aggregate gradation plays an important role in the behaviour of asphalt mixtures. Packing of aggregate is a very important factor that will be affected by changing the aggregate gradation. Many researchers have investigated different ways of describing packing both theoretically and practically. Bailey ratios have recently been used to understand the volumetric properties of mixtures. In this paper, the Bailey ratios have been used, and two further ratios have also been introduced to allow the asphalt mixture gradation to be fully understood. Thirteen different aggregate gradations have been chosen within the 14 mm asphalt concrete specification to investigate the effect of particle size distribution on the stiffness of the mixture. It was found that variation in aggregate gradation has a significant effect on asphalt stiffness, even within specification limits, and a reasonable correlation between the set of ratios investigated and the Indirect Tensile Stiffness. |
| first_indexed | 2025-11-14T19:35:30Z |
| format | Article |
| id | nottingham-38617 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:35:30Z |
| publishDate | 2015 |
| publisher | De Gruyter Open |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-386172020-05-04T17:27:10Z https://eprints.nottingham.ac.uk/38617/ Effect of aggregate gradation on the stiffness of asphalt mixtures Al-Mosawe, Hasan Thom, Nick Airey, Gordon Ai-Bayati, Amjad Aggregate gradation plays an important role in the behaviour of asphalt mixtures. Packing of aggregate is a very important factor that will be affected by changing the aggregate gradation. Many researchers have investigated different ways of describing packing both theoretically and practically. Bailey ratios have recently been used to understand the volumetric properties of mixtures. In this paper, the Bailey ratios have been used, and two further ratios have also been introduced to allow the asphalt mixture gradation to be fully understood. Thirteen different aggregate gradations have been chosen within the 14 mm asphalt concrete specification to investigate the effect of particle size distribution on the stiffness of the mixture. It was found that variation in aggregate gradation has a significant effect on asphalt stiffness, even within specification limits, and a reasonable correlation between the set of ratios investigated and the Indirect Tensile Stiffness. De Gruyter Open 2015-12-10 Article PeerReviewed Al-Mosawe, Hasan, Thom, Nick, Airey, Gordon and Ai-Bayati, Amjad (2015) Effect of aggregate gradation on the stiffness of asphalt mixtures. International Journal of Pavement Engineering and Asphalt Technology (PEAT), 16 (2). pp. 39-49. ISSN 2051-8234 https://www.degruyter.com/downloadpdf/j/ijpeat.2015.16.issue-2/ijpeat-2015-0008/ijpeat-2015-0008.xml doi:10.1515/ijpeat-2015-0008 doi:10.1515/ijpeat-2015-0008 |
| spellingShingle | Al-Mosawe, Hasan Thom, Nick Airey, Gordon Ai-Bayati, Amjad Effect of aggregate gradation on the stiffness of asphalt mixtures |
| title | Effect of aggregate gradation on the stiffness of asphalt mixtures |
| title_full | Effect of aggregate gradation on the stiffness of asphalt mixtures |
| title_fullStr | Effect of aggregate gradation on the stiffness of asphalt mixtures |
| title_full_unstemmed | Effect of aggregate gradation on the stiffness of asphalt mixtures |
| title_short | Effect of aggregate gradation on the stiffness of asphalt mixtures |
| title_sort | effect of aggregate gradation on the stiffness of asphalt mixtures |
| url | https://eprints.nottingham.ac.uk/38617/ https://eprints.nottingham.ac.uk/38617/ https://eprints.nottingham.ac.uk/38617/ |