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- 2009526859 abstract "Rebar-couplers that mechanically splice pairs of steel reinforcing bars, end-to-end are used regularly in reinforced concrete construction. Epoxy-bonded couplers are one available type, but have unique long-term performance considerations. The adhesive material used in these couplers is a two-part, field-mixed, ambient-cure epoxy system, originally designed for adhesive anchorage to concrete. Many of the adhesive systems used for anchorage to concrete, including the system used with adhesive-bonded couplers, are epoxy systems. The mechanical properties of these types of epoxies have been shown to degrade over time, in the presence of moisture. A variety of commercially available adhesive systems, for anchorage to concrete, were studied to assess their relative resistance to moisture-based degradation. The material properties of two of the adhesive systems, both epoxies, and the performance of the rebar-couplers were then measured over a fourteen-and-a-half-month period of exposure to a variety of environmental conditions, including water immersion at a range of temperatures. From these results, material degradation models were used to predict the properties of the adhesive over the service life of the rebar-coupler. A Finite Element Analysis (FEA) model was developed to simulate the tensile failure of the epoxy-bonded rebar-coupler system and correlate degrading adhesive material properties to changes in the coupler system's behavior throughout its service life.".
- 2009526859 contributor B11696872.
- 2009526859 contributor B11696873.
- 2009526859 contributor B11696874.
- 2009526859 created "[2009]".
- 2009526859 date "2009".
- 2009526859 date "[2009]".
- 2009526859 dateCopyrighted "[2009]".
- 2009526859 description "Includes bibliographical references.".
- 2009526859 description "Rebar-couplers that mechanically splice pairs of steel reinforcing bars, end-to-end are used regularly in reinforced concrete construction. Epoxy-bonded couplers are one available type, but have unique long-term performance considerations. The adhesive material used in these couplers is a two-part, field-mixed, ambient-cure epoxy system, originally designed for adhesive anchorage to concrete. Many of the adhesive systems used for anchorage to concrete, including the system used with adhesive-bonded couplers, are epoxy systems. The mechanical properties of these types of epoxies have been shown to degrade over time, in the presence of moisture. A variety of commercially available adhesive systems, for anchorage to concrete, were studied to assess their relative resistance to moisture-based degradation. The material properties of two of the adhesive systems, both epoxies, and the performance of the rebar-couplers were then measured over a fourteen-and-a-half-month period of exposure to a variety of environmental conditions, including water immersion at a range of temperatures. From these results, material degradation models were used to predict the properties of the adhesive over the service life of the rebar-coupler. A Finite Element Analysis (FEA) model was developed to simulate the tensile failure of the epoxy-bonded rebar-coupler system and correlate degrading adhesive material properties to changes in the coupler system's behavior throughout its service life.".
- 2009526859 extent "xv, 147 leaves :".
- 2009526859 isPartOf "Report (Structural Systems Research Project) ; no. SSRP-08/09.".
- 2009526859 issued "2009".
- 2009526859 issued "[2009]".
- 2009526859 language "eng".
- 2009526859 publisher "La Jolla, Calif. : Dept. of Structural Engineering, University of California, San Diego ; Huntsville, AL : University of Alabama,".
- 2009526859 subject "624.2028/4 22".
- 2009526859 subject "Concrete bridges Maintenance and repair.".
- 2009526859 subject "Epoxy coatings.".
- 2009526859 subject "Reinforced concrete construction.".
- 2009526859 subject "Reinforcing bars.".
- 2009526859 subject "TG335 .B78 2009".
- 2009526859 title "Long-term performance of epoxy-bonded rebar-couplers / by Griffin Brungraber, Vistasp M. Karbhari.".
- 2009526859 type "text".