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Title: Research Pays Off: Expanding the Capacity of Highway Bridges with High-Performance Concrete: Georgia's Experience
Accession Number: 01033028
Record Type: Component
Availability: Find a library where document is available Abstract: The Georgia Department of Transportation and the Georgia Institute of Technology, through research and application, have confirmed the benefits and cost savings of high-performance concrete in increasing the span length and in reducing the size of precast, prestressed concrete girders. Their work has demonstrated the following benefits: the production of 10,000-psi and 7,000-psi concrete with locally available materials; a span increase of approximately 40% for the same cross section of girder; a reduction in the depth of the superstructure, eliminating such potential problems and costs as raising the grade or purchasing additional land; reducing the number of prestressing strands and increasing span length and girder spacing with 0.6-in.-diameter strand instead of 0.5-in. strand for precast, prestressed girders; enhanced durability and reduced cracking, leading to lower maintenance cost and longer service life; and potential cost savings in comparison with conventional concrete, estimated at 10% for a recently constructed bridge in Georgia.
Supplemental Notes: Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Language: English
Authors: Kamatkar, SupriyaPagination: pp 24-25
Publication Date: 2006-7
Serial: Media Type: Print
Features: Photos
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TRT Terms: Identifier Terms: Uncontrolled Terms: Geographic Terms: Subject Areas: Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls; I32: Concrete
Files: TRIS, TRB
Created Date: Sep 14 2006 1:15PM
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