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Title: DURABILITY EVALUATION OF CONCRETE CRACK REPAIR SYSTEMS
Accession Number: 00933756
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: Concrete cracking in highway bridges is a major problem because it not only accelerates the rate of deterioration, but it also can reduce the structural strength of the bridge. Crack repair systems have been developed to address this problem. For repairing structural cracks, six repair materials were evaluated for durability. The repair materials include one cementitious system, one modified cementitious system, two epoxy-based systems, and two high-molecular-weight methacrylate (HMWM) repair products. Each product was applied according to its manufacturer's directions to repair beams with crack widths of 0.51 mm (0.02 in.), 6.35 mm (0.25 in.), and 12.70 mm (0.50 in.). The specimens are subjected to a standard freezing and thawing test followed by fatigue testing to failure. In general, epoxies and HMWMs performed the best. However, individual products varied significantly. Specimens repaired with the cementitious system were unable to resist any significant amount of fatigue-loading cycles.
Supplemental Notes: This paper appears in Transportation Research Record No. 1795, Maintenance of Pavements and Structures.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Tsiatas, GRobinson, JPagination: p. 82-87
Publication Date: 2002
Serial: ISBN: 0309077222
Features: Figures
(2)
; Photos
(1)
; References
(5)
; Tables
(2)
TRT Terms: Uncontrolled Terms: Subject Areas: Geotechnology; Highways; Maintenance and Preservation; Materials; I35: Miscellaneous Materials; I61: Equipment and Maintenance Methods
Files: TRIS, TRB
Created Date: Nov 15 2002 12:00AM
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