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Title: PERFORMANCE OF FIRST STRUCTURE BUILT WITH HIGH-PERFORMANCE CONCRETE IN VIRGINIA
Accession Number: 00932133
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: The preparation and placement operations, concrete properties, cost-effectiveness, and 5-year performance were evaluated for the first bridge containing high-performance concrete built by the Virginia Department of Transportation. High-performance concrete was used in the prestressed beams and cast-in-place substructure and deck concrete. The concrete in the beams contained silica fume, and the concrete in the cast-in-place substructure and deck contained slag. A high compressive strength was specified for the prestressed beams, normal strengths were specified for the cast-in-place substructure and deck concretes, and low permeability was specified for all concretes. Steam-cured specimens for the beams had high early strengths, but moist-cured specimens developed high long-term strengths. The permeability was much lower than specified. Concretes were easily placed, and the strengths were higher than specified. The structure was monitored during construction and surveyed after construction and at 5 years. Some cracking occurred in the deck, but the cracks were tight. High-strength concrete is recommended for use in beams if economically feasible. Temperature-matched curing should be used to determine the strength of elements where high temperature increases are expected, and pozzolans or slag should be used to reduce permeability.
Supplemental Notes: This paper appears in Transportation Research Record No. 1798, Concrete 2002.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Ozyildirim, CPagination: p. 43-50
Publication Date: 2002
Serial: ISBN: 0309077230
Features: Figures
(3)
; References
(12)
; Tables
(10)
TRT Terms: Geographic Terms: Subject Areas: Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls; I32: Concrete
Files: TRIS, TRB, ATRI
Created Date: Oct 28 2002 12:00AM
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