CAUSES AND REPAIR OF DETERIATION TO A CALIFORNIA BRIDGE DUE TO CORROSION OF REINFORCING STEEL IN A MARINE ENVIRONMENT. PART I: METHOD OF REPAIR

A PARTICULAR PHASE OF REINFORCED CONCRETE DETERIORATION, NAMELY, DETERIORATION OF STRUCTURAL PARTS AS A RESULT OF BUILDUP OF INTERNAL CORROSION ON STEEL BAR REINFORCEMENT IN A MARINE ATMOSPHERE AND THE CONSEQUENT RUPTURE OF THE SURROUNDING CONCRETE IS DISCUSSED. THE PAPER DESCRIBES CONDITIONS ENCOUNTERED AT THE SAN MATEO-HAYWARD BRIDGE, A MAJOR TRANSBAY STRUCTURE CONSISTING OF A 6.76-MILE LENGTH OF REINFORCED CONCRETE TRESTLE CONSTRUCTION, PLUS A 1,503-FT LENGTH OF STEEL TRUSS CONSTRUCTION INCLUDING A VERTICAL LIFT DRAWSPAN. THIS STRUCTURE, ACQUIRED BY THE STATE IN 1951, SOME 22 YEARS AFTER ITS CONSTRUCTION, NOW PRESENTS THE BRIDGE DIVISION WITH ITS MOST EXTENSIVE PROBLEMS OF CONCRETE DETERIORATION. THE EXTENT OF THE DETERIORATION WAS CONSIDERED OF SUFFICIENT MAGNITUDE TO JUSTIFY INITIATION OF A RESEARCH PROJECT TO DETERMINE THE CAUSE AND POSSIBLE CURE OF THE CONDITION. THE HISTORY, CHARACTER AND EXTENT OF THE DETERIORATION, INSPECTION AND ESTIMATING PROCEDURES PRIOR TO REPAIR, REPAIR PROCEDURES, BASIS OF CONTRACT PAYMENT, AND COSTS OF REPAIR IS DISCUSSED. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrbbulletin/182/182-001.pdf
• Supplemental Notes:
  • No 182, pp 1 - 17, 15 FIG, 2 TAB 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.
• Authors:
  • Gewertz, M W
• Publication Date: 1958

Media Info

• Monograph Title: Corrosion of reinforcing steel and repair of concrete in a marine environment
• Serial:
  • Highway Research Board Bulletin
  • Issue Number: 182
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Concrete; Concrete bridges; Corrosion; Costs; Deterioration; Durability; Estimating; History; Inspection; Reinforced concrete; Reinforcing steel; Repairing; Seas; Trestles
• Uncontrolled Terms: Corrosive environments; Repairs
• Old TRIS Terms: Concrete bridge structures; Marine atmospheres
• Subject Areas: Bridges and other structures; Finance; Highways; History;

Filing Info

• Accession Number: 00208824
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Sep 16 1994 12:00AM