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Title: EFFECTS OF SAWED-GROOVE TEXTURING ON CONCRETE BRIDGE DECKS
Accession Number: 00399159
Record Type: Component
Availability: Find a library where document is available Abstract: The experimental application of a sawed groove texture on two New York bridge decks and one operational use of diamond grinding to rectify an aggravated friction problem on a third deck are discussed. Although tine-texturing has been the chosen concrete deck texturing method in New York, inability to obtain grooves deep enough to provide a long-lasting, high-friction surface has generated interest in trying to saw grooves in new decks. Although used widely for restoring texture on worn concrete pavements, this method had not been generally accepted or promoted for use on new concrete decks. The purpose was to determine if sawing a new concrete deck to produce texture would adversely affect concrete durability and to assess the frictional properties and durability of the texture itself compared with tined surfaces. The determination is based on laboratory tests for chloride permeability and resistance to deicer scaling, and microscopic examinations for microfracturing, as well as field measures of friction and texture depth. Results show that accumulation of chlorides in sawed samples was slightly greater at shallow depths than accumulation in tined textures. At greater depths, no significant difference was found. Tests showed that sawed texturing did not increase the occurrence of scaling, nor cause any small-scale fracturing. Sawed textures were shown to provide a deep and durable frictional riding surface. A disadvantage of sawing is the increased cost compared to tining.
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. Publication of this paper sponsored by Committee on Rigid Pavement Construction.
Monograph Title: Monograph Accession #: 01419862
Authors: Grady, John EEditors: Kaplan, Elizabeth WPagination: pp 8-17
Publication Date: 1984
Serial: Conference:
63rd Annual Meeting of the Transportation Research Board
Location:
Washington District of Columbia, United States ISBN: 0309037700
Media Type: Print
Features: Figures
(7)
; Photos
(5)
; References
(20)
; Tables
(4)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Bridges and other structures; Construction; Finance; Highways; Vehicles and Equipment; I52: Construction of Pavements and Surfacings
Files: TRIS, TRB
Created Date: Jan 31 1986 12:00AM
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