Self consolidating concrete drilled shafts auburn


The Transportation Research Board; the National Academies of Sciences, Engineering, and Medicine; and the sponsors of the National Cooperative Highway Research Program do not endorse products or manufacturers. The National Academy of Medicine (formerly the Institute of Medicine) was established in 1970 under the charter of the National Academy of Sciences to advise the nation on medical and health issues. The Academies also encourage education and research, recognize outstanding contributions to knowledge, and increase public understanding in matters of science, engineering, and medicine.Trade or manufacturers’ names appear herein solely because they are considered essential to the object of the report. Members are elected by their peers for distinguished contributions to medicine and health. Learn more about the National Academies of Sciences, Engineering, and Medicine at Learn more about the Transportation Research Board at C O O P E R A T I V E R E S E A R C H P R O G R A M S AUTHOR ACKNOWLEDGMENTS The research reported herein was performed under NCHRP Project 18-16 by the University of Nebraska- Lincoln (UNL) and Iowa State University (ISU); Dr. Chua, Vulcan Materials Company, Herndon, VA Donald J.George Morcous, Professor of Construction Engineer- ing at UNL, was the principal investigator. Kejin Wang, Professor of Civil Engineering at ISU; Dr. Taylor, Director of the National Concrete Pavement Technology Center at ISU; Dr. Shah, Consultant; Micheal Asaad, Research Assistant and Ph. Candidate at UNL; and Xuhao Wang, Post-Doctoral Associate at ISU. Jenks, Director, Cooperative Research Programs Christopher Hedges, Manager, National Cooperative Highway Research Program Amir N. Janssen, Seattle, WA Jugesh Kapur, Burns and Mc Donnell, Bismarck, ND Kristin L. Myint Lwin, Olympia, WA Madhwesh Raghavendrachar, California DOT, Sacramento, CA Anton K. Trautman, Missouri DOT, Jefferson City, MO Susan N.The National Academy of Sciences was established in 1863 by an Act of Congress, signed by President Lincoln, as a private, non- governmental institution to advise the nation on issues related to science and technology. The National Academy of Engineering was established in 1964 under the charter of the National Academy of Sciences to bring the practices of engineering to advising the nation. The Transportation Research Board is one of seven major programs of the National Academies of Sciences, Engineering, and Medicine.Members are elected by their peers for outstanding contributions to research. Members are elected by their peers for extraordinary contributions to engineering. The mission of the Transportation Research Board is to increase the benefits that transportation contributes to society by providing leadership in transportation innovation and progress through research and information exchange, conducted within a setting that is objective, interdisciplinary, and multimodal.Lane, FHWA Liaison Frederick Hejl, TRB Liaison F O R E W O R D This report presents recommended guidelines for the use of self-consolidating concrete (SCC) in cast-in-place highway bridge components.

Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages. Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM Systematic, well-designed research is the most effective way to solve many problems facing highway administrators and engineers.Use of this type of concrete for the manufacture of precast, prestressed concrete bridge elements has increased in recent years because it helps increase the rate of production and safety, reduce labor needs, and lower noise levels at manufacturing plants.However, use of cast-in-place SCC in bridge construction has been limited because of the lack of design and construction guidelines and concerns about certain design and construction issues that may influence the structural integrity of the bridge system.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 and structures.

SCC is a specially proportioned hydraulic cement concrete that enables the fresh concrete to flow easily into the forms and around the reinforcement and prestressing steel without segregation.TRB is uniquely suited for this purpose for many reasons: TRB maintains an extensive com- mittee structure from which authorities on any highway transportation subject may be drawn; TRB possesses avenues of communications and cooperation with federal, state, and local governmental agencies, univer- sities, and industry; TRB’s relationship to the Academies is an insurance of objectivity; and TRB maintains a full-time staff of specialists in high- way transportation matters to bring the findings of research directly to those in a position to use them.


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