| Download | - View accepted manuscript: Effectiveness of predictive models for estimating asphalt concrete complex modulus (PDF, 324 KiB)
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| Author | Search for: Zeghal, M.1; Search for: Adam, Y. E.; Search for: Elhussein H. Mohamed |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Conference | 6th Transportation Specialty Conference, May 5, 2005, Toronto, Ontario, Canada |
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| Subject | Roads/Pavement |
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| Abstract | The complex modulus has been identified as a suitable mechanistic characterisation technique for asphalt concrete because of its ability to capture the visco-elastic response of the material and has since been incorporated in the new AASHTO 2002 road design guide. The pavement research group of NRC developed a laboratory testing protocol involving a wide range of loading frequencies and temperature conditions to satisfy requirements of a variety of analytical models. The high cost of the test motivated developers of the ASSHTO guide to implement predictive models as an alternative to actual laboratory testing. This paper discusses results of the tests performed at NRC on typical asphalt concrete mixes and calls for establishing a material library for Canadian users of the ASSHTO guide. The predictive equation came short of accurately estimating laboratory measured dynamic modulus. The generic material properties listed in the library could be used instead of the ASSHTO predictive equation. |
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| Publication date | 2005-05-01 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 47683
NRC-IRC-16885 |
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| NPARC number | 20377771 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 22883f39-5070-45af-a9c5-7cc1f126ba44 |
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| Record created | 2012-07-24 |
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| Record modified | 2020-04-07 |
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