Influence of anti-oxidant modifications in asphalt binder phesiochemical properties and mixes performance

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dc.contributor.advisorDessouky, Samer
dc.contributor.authorReyes, Christopher M.
dc.contributor.committeeMemberWeissmann, José
dc.date.accessioned2024-02-12T19:50:53Z
dc.date.available2024-02-12T19:50:53Z
dc.date.issued2012
dc.descriptionThis item is available only to currently enrolled UTSA students, faculty or staff. To download, navigate to Log In in the top right-hand corner of this screen, then select Log in with my UTSA ID.
dc.description.abstractOne of transportations' most pressing issues is our nation's need for rehabilitation or reconstruction of existing roads and highways. The existing system of degrading roads and highways pose a pressing budgeting problem that effects us all. This study evaluates alternative materials for extending the longer-lasting material life of asphalt concrete pavements. This study deals with an antioxidant modified binder which is intended to decrease fatigue damage by slowing down the process of oxidation or aging. Including Vitamin-E into our binder, introduces a strong antioxidant, the binder is less susceptible to the effects of aging. The binder rheological and chemical properties are altered resulting in a less viscous material with a lower overall elasticity. In order to compensate, an optimum percentage of either fly ash or hydrated lime are added to the binder. A Difference Index (%) is introduced as an indicator of the aging effects. Overall, it was determined that a balance must be obtained to include a low percentage of an antioxidant with a greater percentage of a stiffening modifier.
dc.description.departmentCivil and Environmental Engineering
dc.format.extent185 pages
dc.format.mimetypeapplication/pdf
dc.identifier.isbn9781267344106
dc.identifier.urihttps://hdl.handle.net/20.500.12588/5078
dc.languageen
dc.subject.classificationCivil engineering
dc.titleInfluence of anti-oxidant modifications in asphalt binder phesiochemical properties and mixes performance
dc.typeThesis
dc.type.dcmiText
dcterms.accessRightspq_closed
thesis.degree.departmentCivil and Environmental Engineering
thesis.degree.grantorUniversity of Texas at San Antonio
thesis.degree.levelMasters
thesis.degree.nameMaster of Science

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