Self Compacting Concrete (SCC) for Prestressed Bridge Girders


1.3 Research Objectives This study was initiated with the intent to investigate the viability of using self-consolidating

concrete developed at local precast plants with only locally available materials for the construction of prestressed SCC girders in the State of Minnesota. The primary objective of the research was to determine both short-term and long-term properties of SCC bridge girders, evaluate the applicability and accuracy of available test procedures, design equations and material models for SCC bridge girders. In addition to SCC girders, conventional concrete girders with the same or similar materials were fabricated on the same bed at the same time. Because the girders were fabricated with SCC and conventional concrete using similar design parameters (e.g., specified nominal release and 28-day compressive strength, initial prestressing force, girder dimensions, strand layout), a performance evaluation could be conducted that was independent of many design parameters. The specific objectives of this study were as follows:







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