Stiffness modulus of Polyethylene Terephthalate modified asphalt mixture: A statistical analysis of the laboratory testing results
Stiffness of asphalt mixture is a fundamental design parameter of flexible pavement. According to literature, stiffness value is very susceptible to environmental and loading conditions. In this paper, effects of applied stress and temperature on the stiffness modulus of unmodified and Polyethylene...
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| Format: | Article |
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Elsevier
2015
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| _version_ | 1825720245194588160 |
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| author | Moghaddam, Taher Baghaee Soltani, Mehrtash Karim, Mohamed Rehan |
| author_facet | Moghaddam, Taher Baghaee Soltani, Mehrtash Karim, Mohamed Rehan |
| author_sort | Moghaddam, Taher Baghaee |
| collection | UM |
| description | Stiffness of asphalt mixture is a fundamental design parameter of flexible pavement. According to literature, stiffness value is very susceptible to environmental and loading conditions. In this paper, effects of applied stress and temperature on the stiffness modulus of unmodified and Polyethylene Terephthalate (PET) modified asphalt mixtures were evaluated using Response Surface Methodology (RSM). A quadratic model was successfully fitted to the experimental data. Based on the results achieved in this study, the temperature variation had the highest impact on the mixture's stiffness. Besides, PET content and amount of stress showed to have almost the same effect on the stiffness of mixtures. The optimal amount of PET was found to be 0.41% by weight of aggregate particles to reach the highest stiffness value. (C) 2014 Elsevier Ltd. All rights reserved. |
| first_indexed | 2024-03-06T05:32:11Z |
| format | Article |
| id | um.eprints-12836 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:32:11Z |
| publishDate | 2015 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | um.eprints-128362019-12-05T06:06:07Z http://eprints.um.edu.my/12836/ Stiffness modulus of Polyethylene Terephthalate modified asphalt mixture: A statistical analysis of the laboratory testing results Moghaddam, Taher Baghaee Soltani, Mehrtash Karim, Mohamed Rehan Q Science (General) Stiffness of asphalt mixture is a fundamental design parameter of flexible pavement. According to literature, stiffness value is very susceptible to environmental and loading conditions. In this paper, effects of applied stress and temperature on the stiffness modulus of unmodified and Polyethylene Terephthalate (PET) modified asphalt mixtures were evaluated using Response Surface Methodology (RSM). A quadratic model was successfully fitted to the experimental data. Based on the results achieved in this study, the temperature variation had the highest impact on the mixture's stiffness. Besides, PET content and amount of stress showed to have almost the same effect on the stiffness of mixtures. The optimal amount of PET was found to be 0.41% by weight of aggregate particles to reach the highest stiffness value. (C) 2014 Elsevier Ltd. All rights reserved. Elsevier 2015 Article PeerReviewed Moghaddam, Taher Baghaee and Soltani, Mehrtash and Karim, Mohamed Rehan (2015) Stiffness modulus of Polyethylene Terephthalate modified asphalt mixture: A statistical analysis of the laboratory testing results. Materials & Design, 68. pp. 88-96. ISSN 0261-3069, DOI https://doi.org/10.1016/j.matdes.2014.11.044 <https://doi.org/10.1016/j.matdes.2014.11.044>. https://doi.org/10.1016/j.matdes.2014.11.044 doi:10.1016/j.matdes.2014.11.044 |
| spellingShingle | Q Science (General) Moghaddam, Taher Baghaee Soltani, Mehrtash Karim, Mohamed Rehan Stiffness modulus of Polyethylene Terephthalate modified asphalt mixture: A statistical analysis of the laboratory testing results |
| title | Stiffness modulus of Polyethylene Terephthalate modified asphalt mixture: A statistical analysis of the laboratory testing results |
| title_full | Stiffness modulus of Polyethylene Terephthalate modified asphalt mixture: A statistical analysis of the laboratory testing results |
| title_fullStr | Stiffness modulus of Polyethylene Terephthalate modified asphalt mixture: A statistical analysis of the laboratory testing results |
| title_full_unstemmed | Stiffness modulus of Polyethylene Terephthalate modified asphalt mixture: A statistical analysis of the laboratory testing results |
| title_short | Stiffness modulus of Polyethylene Terephthalate modified asphalt mixture: A statistical analysis of the laboratory testing results |
| title_sort | stiffness modulus of polyethylene terephthalate modified asphalt mixture a statistical analysis of the laboratory testing results |
| topic | Q Science (General) |
| work_keys_str_mv | AT moghaddamtaherbaghaee stiffnessmodulusofpolyethyleneterephthalatemodifiedasphaltmixtureastatisticalanalysisofthelaboratorytestingresults AT soltanimehrtash stiffnessmodulusofpolyethyleneterephthalatemodifiedasphaltmixtureastatisticalanalysisofthelaboratorytestingresults AT karimmohamedrehan stiffnessmodulusofpolyethyleneterephthalatemodifiedasphaltmixtureastatisticalanalysisofthelaboratorytestingresults |