CORROSION OF MARINE STEEL PILING
CORROSION OF MARINE STEEL PILING BENEATH WHARVES AND PIERS IN SALT TIDE WATERS IS EXAMINED. THE PRESENT CONDITION OF UNPROTECTED STRUCTURES WERE OBSERVED TO VERIFY THE EFFECTIVENESS OF CATHODIC SYSTEMS, UTILIZING EXPERIMENTAL AND STATISTICAL TECHNIQUES TOGETHER WITH ACTUAL MEASUREMENT OF METAL THICKNESS UNDERWATER. A BRIEF SUMMARY IS PRESENTED OF THE DATA GATHERED FROM A CASE HISTORY OF A 37-YEAR-OLD WATERFRONT STRUCTURE. ULTRASONIC DEVICES GAVE SATISFACTORY METAL THICKNESS MEASUREMENTS UNDERWATER. THE BULKHEADED WAS SURVEYED BY A DRIVER-TECHNICAN TEAM. RESULTS OF THE COMPLETE SURVEY INDICATED A MEAN VALUE OF METAL THICKNESS OF 0.347, WITH A STANDARD DEVIATION OF 0.073. A SIGNIFICANT PORTION OF THE THICKNESS MEASUREMENTS SHOWED VALUES GREATER THAN THE ORIGINAL NOMINAL THICKNESS. THIS MAY BE ASCRIBED TO THE INABILITY OF THE DIVER TO CENTER THE PROBE PRECISELY ON EACH SHEET. THE INWARD-FACING SHEETS CORRODED SIGNIFICANTLY LESS THAN THE OUTWARD-FACING PILING. MAXIMUM CORROSION OCCURRED AT THE MEAN-LOW-WATER LEVEL AND WAS PROGRESSIVELY LESS AT GREATER DEPTHS.
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Supplemental Notes:
- Proceedings VOL 68, NO 603, PP 190-197, 6 FIG
- Publication Date: 1966-12
Media Info
Subject/Index Terms
- TRT Terms: Cathodic protection; Corrosion; Experiments; Measurement; Metals; Piers (Supports); Piers (Wharves); Seawater; Statistical analysis; Steel; Support piles; Thickness; Ultrasonic tests; Underwater construction; Underwater structures; Wharves
- Uncontrolled Terms: Diving; Steel piling
- Subject Areas: Bridges and other structures; Data and Information Technology; Geotechnology; Highways; Materials;
Filing Info
- Accession Number: 00216219
- Record Type: Publication
- Files: TRIS
- Created Date: Feb 17 1994 12:00AM