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dc.contributor.advisorHoward, Isaac L.
dc.contributor.authorHufft, Amanda
dc.date.accessioned2019-11-12T18:17:30Z
dc.date.available2019-11-12T18:17:30Z
dc.identifier.urihttps://hdl.handle.net/11668/16443
dc.description.abstractThis thesis is focused on determining the durability characteristics of asphalt mixtures containing bio-based additives for the purpose of more effective use of recycled materials. Fifty mixtures were evaluated by Cantabro Mass Loss testing in their virgin state, after 1 year of field aging, and after laboratory conditioning to determine the effectiveness of bio-additives in dense graded asphalt and sand asphalt mixtures. Key findings from this work demonstrated that considerable amounts of recycled asphalt shingles (i.e. 5% of the total mixture) significantly affect the brittleness of dense graded asphalt mixtures when used in conjunction with reclaimed asphalt pavement (RAP). Furthermore, brittleness was not improved with the use of bio-additives at high dosages (e.g. greater than 7.5% of the total binder content), but was improved in some cases at lower dosage rates (e.g. 2.5-5%). Additional testing of similar mixtures and bio-additives evaluated in this thesis are recommended.en_US
dc.subjectRASen_US
dc.subjectdurabilityen_US
dc.subjectrecycled asphalten_US
dc.subjectasphalt modifiersen_US
dc.subjectbio-based productsen_US
dc.subjectCantabro Mass Lossen_US
dc.titleDurability characteristics of asphalt mixtures containing bio-additivesen_US
dc.typeGraduate Thesisen_US
dc.publisher.departmentDepartment of Civil and Environmental Engineeringen_US
dc.publisher.collegeJames Worth Bagley College of Engineeringen_US
dc.date.authorbirth1995-08-29
dc.subject.degreeMaster of Scienceen_US
dc.subject.majorCivil Engineeringen_US
dc.contributor.committeeHassan, El Barbary
dc.contributor.committeeFrench, W. Todd
dc.date.defense2019-10-16
dc.date.graduation2019-12-13


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