U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
|This report is an archived publication and may contain dated technical, contact, and link information|
|Publication Number: FHWA-HRT-11-059 Date: August 2011|
Publication Number: FHWA-HRT-11-059
Date: August 2011
Figure 1. Graph. Time to first repair. Conventional reinforcement without a corrosion inhibitor shows the shortest time to first repair, 19 years. The addition of a corrosion inhibitor increases the time to first repair for conventional reinforcement, with conventional reinforcement with Hycrete™ having the longest time to first repair, 38 years. Systems with conventional epoxy-coated reinforcement (ECR), ECR with improved adhesion, and ECR in conjunction with Rheocrete® all have a time to first repair of 55 years. The use of multiple-coated reinforcement or a corrosion inhibitor other than Rheocrete® increases the time to first repair to between 56 and 64 years.
Figure 2. Graph. Present cost for initial construction and repair over 75 years. Conventional reinforcement without a corrosion inhibitor shows the greatest cost over a 75-year design life, approximately $65 per ft2 ($700 per m2). The addition of a corrosion inhibitor reduces the overall cost for conventional reinforcement, with conventional reinforcement with Hycrete™ being the most cost effective at $46 per ft2 ($502 per m2). Coated bar systems have overall costs between $30 per ft2 ($327 per m2) and $35 per ft2 ($374 per m2).