This report presents recommended guidelines for the use of self-consolidating concrete (SCC) in precast, prestressed concrete bridge elements. These guidelines address the selection of constituent materials, proportioning of concrete mixtures, testing methods, fresh and hardened concrete properties, production and quality control issues, and other aspects of SCC. The report also presents recommended changes to the AASHTO Load and Resistance Factor Design (LRFD) Bridge Design and Construction Specifications, and test protocols for evaluating some of the properties of SCC. The information contained in the report will guide materials and bridge engineers in evaluating, selecting, and specifying SCC mixtures for use in precast, prestressed concrete bridge elements, thereby facilitating fabrication, improving working environment and safety, and reducing cost. The information contained in the report will be of immediate interest to state materials and bridge engineers and others involved in specifying and evaluating concrete mixtures for use in highway bridges. (Author/publisher)
Samenvatting