The Wilbur Smith Associates project team developed an easily applied methodology for selecting the most cost effective method of protecting or rehabilitating a specific concrete bridge exposed to corrosion of the reinforcing steel for the Strategic Highway Research Program as part of project SHRP C-104. This methodology is included in a manual and computer program for use by bridge owners. The methodology applies the findings of the following SHRP C-100 series research projects: 1. SHRP C-101 - this project identifies methods of condition assessment of concrete bridge components; 2. SHRP C102 - this combines several projects that study the protection and rehabilitation of concrete bridges by electrochemical chloride removal and cathodic protection; 3. SHRP C-103 - this project focuses on physical and chemical methods of concrete bridge protection and rehabilitation. The scope of SHRP C-104 was to interpret and organize the results of the combined research described above. A literature review of time-deterioration prediction techniques was also required. Gaps in the technology are bridged using the combined best judgement of the project team and the SHRP Expert Task Group (ETG). The paper will describe the logic and the framework for the final methodology which includes an innovative aproach to estimating the service life of the remedial alternatives. It will discuss the condition information and other input that is required by an agency to use the procedure. It will also present a step-by-step example using the procedure. (A)
Samenvatting