EPOXY BONDED COMPOSITE T-BEAMS FOR HIGHWAY BRIDGES- SUPPLEMENT TO THE FINAL REPORT
TESTS TO DETERMINE THE CAUSES OF RUST FORMATION ON STEEL BEAMS JOINED TO CONCRETE BY A LAYER OF EPOXY ARE REPORTED. SPECIFICALLY, THE FOLLOWING VARIABLES WERE INVESTIGATED: THICKNESS OF EPOXY LAYERS VS. MOISTURE ABSORPTION, VARIATION IN MIXING METHODS (HAND VS. MACHINE MIXING) AGGREGATE TYPE AND PROPERTIES, AND VARIATIONS IN THE TIME OF PLACEMENT OF THE CONCRETE DECK ON THE EPOXY LAYER. SOME OF THE TESTS WERE PERFORMED ON CONCRETE CYLINDERS, OTHERS ON LARGER STEEL BEAMS. BASED ON THESE TESTS, THE AUTHOR CONCLUDES THAT OCCURRENCE OF RUST SPOTS CAN BE PREVENTED IF: (1) CLEAN, DRY AGGREGATES OF LOW MOISTURE ABSORBING PROPERTIES ONLY ARE USED, AND (2) THE PRE-CURED EPOXY SYSTEM IS ADHERED TO. /BPR/
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Corporate Authors:
University of Arizona, Tucson
Tucson, AZ United States 85721 1730 West Jackson Street
Phoenix, AZ United States 85007 -
Authors:
- Kriegh, J D
- Publication Date: 1967-6
Subject/Index Terms
- TRT Terms: Absorption; Aggregates; Beams; Bonds; Composite materials; Epoxides; Highway bridges; Moisture content; Prevention; Rusting; T beams; Thickness
- Uncontrolled Terms: Composite beams
- Old TRIS Terms: Epoxy
- Subject Areas: Bridges and other structures; Geotechnology; Highways; Materials; Security and Emergencies;
Filing Info
- Accession Number: 00207845
- Record Type: Publication
- Source Agency: Bureau of Public Roads /US
- Report/Paper Numbers: Hpr-1/4/ii
- Files: TRIS, STATEDOT
- Created Date: Dec 15 1994 12:00AM