[PDF] Final Report The Economy of Preventive Maintenance of Concrete Bridges

This study investigated the economy of preventive maintenance for concrete bridges. The report presents an in-depth chemical evaluation and preventive maintenance of existing highway concrete bridges. In addition, it presents the implementation of the proposed preventive maintenance approach that is based on a quantitative assessment of the material chemical condition of the bridge.

This research project involved the following activities: (1) Review of the current bridge inspection manuals for concrete bridges evaluation, (2) Identification of various deterioration mechanisms, (3) Extensive presentation of chemical NDTs, (4) Establishment of chloride diffusion coefficient, (4) Required preventive maintenance measures for different levels of harmful compounds found in concrete bridges, (5) cost of various activities presented in items 1-4, (6) Comparison of concrete bridge maintenance costs using the current practice and the proposed preventive maintenance approach


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