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dc.contributor.authorTetteh, Nathaniel
dc.contributor.otherQueen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))en
dc.date.accessioned2018-04-18T15:14:37Z
dc.date.available2018-04-18T15:14:37Z
dc.identifier.urihttp://hdl.handle.net/1974/24007
dc.description.abstractThe appearance of excessive and premature cracking on asphalt pavement after the winter seasons has been a major challenge and concern to transportation agencies in Canada and the northern U.S. states. At low temperatures, thermal stresses develop in the pavement causing detachment of the binder from the aggregates and a subsequent deterioration in stiffness which eventually leads to gross thermal cracking. Further distresses are induced on these roads in the form of wheel path fatigue by heavy vehicles leading to alligatortype cracks. Governments spend large portions of their yearly budgets on the maintenance and reconstruction of damaged roads. Through the collaborative efforts of government agencies and research institutions various laws and specifications have been implemented to ensure durability of asphalt pavement across various provinces. In this study, approved American Association of State and Highway Transportation Officials (AASHTO) and Ministry Transportation of Ontario (MTO) methods namely dynamic shear rheometer (DSR), extended bending beam rheometer (EBBR), and double edge-notched tension (DENT) tests were used to evaluate the rheological properties and long-term performance of recovered binders with 3 to 7 years of service. The recovered samples showed similar properties as their corresponding tank samples even though there exists a difference in their performance due to extent of aging which is only poorly simulated by the rolling thin film oven (RTFO) aging and pressure aging vessel (PAV) treatment of the tank samples. Easier, more automated test methods were attempted in this study to replace or complement the EBBR and DENT. Gel point temperature and Glover- Rowe analysis were conducted on all recovered samples. An r-squared value 0.72 was obtained for the correlation between EBBR and gel point temperature while that between iii critical tip opening displacement (CTOD) from DENT test and the Glover-Rowe parameter was 0.96. These results look promising and would require further studies to come to more precise decisions. Chemical analysis using X-ray fluorescence (XRF) and Fourier transform infrared (FTIR) were compared with rheological and physical tests, and able to distinguish good performing binders from poor ones.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesCanadian thesesen
dc.rightsQueen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canadaen
dc.rightsProQuest PhD and Master's Theses International Dissemination Agreementen
dc.rightsIntellectual Property Guidelines at Queen's Universityen
dc.rightsCopying and Preserving Your Thesisen
dc.rightsThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.en
dc.subjectAsphalt Cement Specificationen_US
dc.subjectExtended Bending Beam Rheometer (EBBR) Testen_US
dc.subjectGel-Point Temperatureen_US
dc.subjectDouble-Edged-Notched Tension ( DENT) Testen_US
dc.subjectCritical Crack Tip Displacement (CTOD)en_US
dc.subjectGlover-Rowe Damage Analysisen_US
dc.subjectThermal Crackingen_US
dc.subjectFatigue Crackingen_US
dc.subjectField-Aged Asphalt Cementen_US
dc.subjectThermoreversible Agingen_US
dc.titleRheological Evaluation of Field-Aged Asphalt Cementsen_US
dc.typeThesisen
dc.description.degreeMaster of Scienceen_US
dc.contributor.supervisorHesp, Simon A. M.
dc.contributor.departmentChemistryen_US


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