THIN BONDED CONCRETE REPAIRS ON THE OHIO TURNPIKE
THIN BONDED CONCRETE PATCHES ARE USED ON THE OHIO TURNPIKE TO REPAIR DAMAGE TO BRIDGE DECK AND ROADWAY PAVEMENT LARGELY RESULTING FROM SCALING AND/OR SPALLING DUE TO FREEZING AND THAWING. THIN BONDED REPAIR WORK WITH HIGH EARLY STRENGTH CONCRETE IS WELL-SUITED TO TURNPIKE WORK BECAUSE HIGHWAY SECTIONS CAN BE REOPENED WITHIN 6 TO 24 HOURS. THIS TYPE OF REPAIR IS LESS COSTLY THAN REMOVAL AND REPLACEMENT OF PAVEMENT, ESPECIALLY ON BRIDGES. THE SUCCESS OR FAILURE OF A PATCH DEPENDS ON THE SOUNDNESS OF THE UNDERLYING MATERIAL TO WHICH THE PATCH WILL BE BONDED. ALL DETERIORATED OR DEFECTIVE CONCRETE MUST BE REMOVED BEFORE REPAIR CAN BE ACCOMPLISHED. THE EXTENT OF THE DAMAGED AREA IS DETERMINED BY SOUNDING AND IS OUTLINED BY SAWING TO A DEPTH OF ABOUT 1 IN. WITH A CONCRETE SAW. THE EXCAVATED AREA IS THOROUGHLY CLEANED WITH AN AIR HOSE AND BY HAND. A BONDING COAT OF GROUT /A CEMENT AND WATER MIXTURE/ IS BROOMED INTO THE DRY CONCRETE SURFACE TO CUT IT UNIFORMLY AND REMOVE AIR POCKETS. THE CEMENT USED IS TYPE IIIA AIR- ENTRAINING PORTLAND CEMENT. THE AGGREGATE IS A WELL-GRADED SILICA SAND. THE CONCRETE IS PLACED IN THE PATCH ON THE BONDING COAT, SPREAD SMOOTHLY, EXCESS REMOVED WITH A VIBRATORY STRIKEOFF, AND THEN DARBIED WITH WOODEN FLOATS. CURING IS BEGUN BY SPRAYING THE PATCH WITH A WHITE-PIGMENTED COMPOUND. THE EXPERIENCE OF THE OHIO TURNPIKE COMMISSION IN USING THIN BONDED CONCRETE REPAIR METHODS HAS BEEN GOOD. VERY RIGID CONTROLS ARE SET UP FOR USE OF THIS METHOD OF REPAIR AND THE REPAIRS ARE EXPECTED TO BE PERMANENT.
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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
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Authors:
- Meeker, E W
- Warnes Jr, C E
- Publication Date: 1964
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 43-47
- Monograph Title: Maintenance practices - 1963; Administration Methods and Materials
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Serial:
- Highway Research Record
- Issue Number: 61
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Air entraining cement; Bridge decks; Cement grouts; Concrete overlays; Economic benefits; Freeze thaw durability; High early strength cement; Patching; Pavement maintenance; Pavements; Portland cement; Repairing; Silica sands; Spalling
- Identifier Terms: Ohio Turnpike
- Uncontrolled Terms: Repairs; Scaling
- Old TRIS Terms: Freezing thawing effects; Highway pavement; Thin bonded concrete
- Subject Areas: Economics; Highways; Maintenance and Preservation; Pavements;
Filing Info
- Accession Number: 00217980
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Apr 1 1994 12:00AM