Evaluation of the hirsch model for dynamic modulus estimation of asphalt mixtures
Copyright © 2017 ISEC Press. The dynamic modulus of the asphalt mixtures is an important factor in designing or analyzing an asphalt concrete pavement, but it is expensive and time consuming to measure. Therefore, it is important to develop a model to predict this value. In this regard, the Hirsch m...
| Main Authors: | , |
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| Format: | Conference Paper |
| Published: |
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/57011 |
| _version_ | 1848759993595068416 |
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| author | Malekzehtab, H. Nikraz, Hamid |
| author_facet | Malekzehtab, H. Nikraz, Hamid |
| author_sort | Malekzehtab, H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Copyright © 2017 ISEC Press. The dynamic modulus of the asphalt mixtures is an important factor in designing or analyzing an asphalt concrete pavement, but it is expensive and time consuming to measure. Therefore, it is important to develop a model to predict this value. In this regard, the Hirsch model is a popular model, however, it is developed based on a range of U.S. asphalt mixtures and standards. Therefore, it is not certain that it can be used for asphalt mixtures based on materials and codes other than U.S. This article investigated whether this model performs satisfactorily with two typical asphalt mixtures in Western Australia (WA) containing 0, 10, 20, and 30% of recycled asphalt pavement. To do so, cylindrical samples were made with materials and locally established standards in Western Australia and then tested in Asphalt Mixture Performance Tester (AMPT) machine to acquire their dynamic modulus and phase angle values in different loading frequencies (0.01 to 10 Hz) and temperatures (4 to 40°C). Meanwhile, the results are estimated by the Hirsch model using some properties of the mixture and binder. The properties of the binder in different test conditions are obtained using a dynamic shear rheometer. The comparison of the results showed that the dynamic modulus underestimation or overestimation error can reach to 50 and 280% respectively. Generally, this model did not perform well in this study. |
| first_indexed | 2025-11-14T10:08:43Z |
| format | Conference Paper |
| id | curtin-20.500.11937-57011 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:08:43Z |
| publishDate | 2017 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-570112017-09-27T10:21:58Z Evaluation of the hirsch model for dynamic modulus estimation of asphalt mixtures Malekzehtab, H. Nikraz, Hamid Copyright © 2017 ISEC Press. The dynamic modulus of the asphalt mixtures is an important factor in designing or analyzing an asphalt concrete pavement, but it is expensive and time consuming to measure. Therefore, it is important to develop a model to predict this value. In this regard, the Hirsch model is a popular model, however, it is developed based on a range of U.S. asphalt mixtures and standards. Therefore, it is not certain that it can be used for asphalt mixtures based on materials and codes other than U.S. This article investigated whether this model performs satisfactorily with two typical asphalt mixtures in Western Australia (WA) containing 0, 10, 20, and 30% of recycled asphalt pavement. To do so, cylindrical samples were made with materials and locally established standards in Western Australia and then tested in Asphalt Mixture Performance Tester (AMPT) machine to acquire their dynamic modulus and phase angle values in different loading frequencies (0.01 to 10 Hz) and temperatures (4 to 40°C). Meanwhile, the results are estimated by the Hirsch model using some properties of the mixture and binder. The properties of the binder in different test conditions are obtained using a dynamic shear rheometer. The comparison of the results showed that the dynamic modulus underestimation or overestimation error can reach to 50 and 280% respectively. Generally, this model did not perform well in this study. 2017 Conference Paper http://hdl.handle.net/20.500.11937/57011 restricted |
| spellingShingle | Malekzehtab, H. Nikraz, Hamid Evaluation of the hirsch model for dynamic modulus estimation of asphalt mixtures |
| title | Evaluation of the hirsch model for dynamic modulus estimation of asphalt mixtures |
| title_full | Evaluation of the hirsch model for dynamic modulus estimation of asphalt mixtures |
| title_fullStr | Evaluation of the hirsch model for dynamic modulus estimation of asphalt mixtures |
| title_full_unstemmed | Evaluation of the hirsch model for dynamic modulus estimation of asphalt mixtures |
| title_short | Evaluation of the hirsch model for dynamic modulus estimation of asphalt mixtures |
| title_sort | evaluation of the hirsch model for dynamic modulus estimation of asphalt mixtures |
| url | http://hdl.handle.net/20.500.11937/57011 |