EVALUATION OF ULTRA-HIGH PERFORMANCE CONCRETE, FIBER REINFORCED SELF-CONSOLIDATING CONCRETE, AND MALP CONCRETE FOR PRESTRESSED GIRDER REPAIR (FHWA-OK-21-03)
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Date
2021-02Author
Floyd, Royce W.
Volz, Jeffery S.
Looney, Trevor
Mesigh, Michael
Ahmadi, Mujtaba
Roswurm,Stephen
Huynh, Phuoc
Manwarren, Michelle
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Ultra-high performance concrete (UHPC), fiber-reinforced self-consolidating concrete, and magnesium alumino-liquid-phosphate (MALP) concrete all have significant potential for use in bridge repair in Oklahoma.
The project described in this report examined the use of these materials in repairs of prestressed concrete
girder continuity connections and beam end regions including both experimental testing and field
implementation. Bond between the repair materials and conventional concrete and corrosion behavior were
examined for each repair material. Twelve composite beam and continuity joint specimens were damaged and
repaired using FR-SCC, MALP concrete, and UHPC. All repair materials restored capacity of the joints. Six girder
specimens were loaded to failure in shear and repaired using FR-SCC, MALP concrete, and UHPC. Repaired
specimens exhibited similar performance for all three repair materials and measured capacities exceeded those
for the original beams in all cases. The soffit of the bridge deck cantilevers on the S.H. 3 bridge over Fulton
Creek in Beaver County, Oklahoma was repaired using pneumatically placed MALP mortar and the repairs were
monitored over time. Some difficulties were encountered in placing the material, but the repair exhibited good
performance over time. The continuity joints on the U.S. 183/412 bridge over Wolf Creek in Fort Supply,
Oklahoma were replaced using UHPC and load tests indicated the repair reestablished continuity.