Field Evaluation of Reinforced Concrete Repairs using Hydro-Demolition, Galvanic Cathodic Protection or Impressed Current Cathodic Protection

The Virginia Department of Transportation (VDOT) uses sounding to identify delaminated concrete on columns and caps. VDOT then removes the delaminated concrete, which is usually of poor quality and chloride contaminated. This project will compare various repair scenarios and develop documents and guidelines that will help VDOT determine how much concrete to remove using hydro-demolition, how to replace it with quality concrete on the whole surface, and explore the benefits of galvanic cathodic protection or impressed current cathodic protection on substructure repair. This work will incorporate both laboratory and field elements. In the laboratory, concrete specimens will be prepared and properties will be measured to support the field work. In the field the protective systems will be applied and monitored over a period of time. Comparative cost estimates will be generated from the field portion of this study, which will be performed on five different bridges along I-64 between Richmond and Charlottesville.

Language

• English

Project

• Status: Active
• Funding: $639780
• Contract Numbers:

  114521

• Sponsor Organizations:

  Virginia Transportation Research Council

  530 Edgemont Road
  Charlottesville, VA  United States  22903
• Performing Organizations:

  Virginia Transportation Research Council

  530 Edgemont Road
  Charlottesville, VA  United States  22903
• Principal Investigators:

  Sharp, Stephen

  Ozyildirim, Celik

  Sprinkel, Michael

• Start Date: 20181015
• Expected Completion Date: 20220428
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Cathodic protection; Cost estimating; Delamination; Field studies; Guidelines; Highway bridges; Laboratory studies; Reinforced concrete; Repairing
• Geographic Terms: Virginia
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Materials;

Filing Info

• Accession Number: 01683178
• Record Type: Research project
• Source Agency: Virginia Department of Transportation
• Contract Numbers: 114521
• Files: RIP, STATEDOT
• Created Date: Oct 15 2018 9:31AM