THE INFLUENCE OF SURFACE PREPARATION ON BOND STRENGTH BETWEEN CONCRETE OVERLAY AND UNDERLAY IN PRESTRESSED SLAB BRIDGES

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dc.contributor.advisorAmde, Amde Men_US
dc.contributor.authorSingaraju, Krishnaen_US
dc.contributor.departmentCivil Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2018-07-17T06:31:06Z
dc.date.available2018-07-17T06:31:06Z
dc.date.issued2018en_US
dc.description.abstractThe objectives of this research were to experimentally study the influence of surface preparation on bond strength between concrete overlay and underlay in pre-stressed slab bridges and to explore the best practice for placing concrete overlay based on experimental results. Different surface preparation conditions were investigated while other parameters such as water-to-cement ratio, fine and coarse aggregates, cement and curing conditions were kept constant in order to study the influence of surface preparation on bond strength between the concrete overlay and underlay. The main focus of this research was on studying the effect of changing surface pattern consisting of different groove depth, spacing and the effect of using slurry mix made of overlay ingredients at the bond interface. The results also show that surface preparation without adequate groove pattern provides lower bond strength than the cases in which the groove patterns are implemented.en_US
dc.identifierhttps://doi.org/10.13016/M2G15TF2Z
dc.identifier.urihttp://hdl.handle.net/1903/21063
dc.language.isoenen_US
dc.subject.pqcontrolledCivil engineeringen_US
dc.subject.pquncontrolledBest practice for placing overlayen_US
dc.subject.pquncontrolledConcrete overlaysen_US
dc.subject.pquncontrolledOverlay Bonden_US
dc.subject.pquncontrolledPrestressed slab bridgesen_US
dc.subject.pquncontrolledShear bond test of overlayen_US
dc.subject.pquncontrolledTensile bond test of overlayen_US
dc.titleTHE INFLUENCE OF SURFACE PREPARATION ON BOND STRENGTH BETWEEN CONCRETE OVERLAY AND UNDERLAY IN PRESTRESSED SLAB BRIDGESen_US
dc.typeThesisen_US

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