The economy of preventive maintenance of concrete bridges : final report.

Details

• Creators:
  Aboutaha, Riyad ; Zhang, Haotian
• Corporate Creators:
  Syracuse University. Department of Civil and Environmental Engineering
• Corporate Contributors:
  University Transportation Research Center
• Subject/TRT Terms:
  • Concrete bridges
  • Cost effectiveness
  • Deterioration
  • Nondestructive tests
  • Preventive maintenance
  • Chloride diffusion
  • preventive maintenance
  • concrete deterioration
  • maintenance cost
• Publication/ Report Number:
  UTRC/RF Grant No: 49997-27-25
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final report
• Corporate Publisher:
  University Transportation Research Center
• Abstract:
  The most economical approach to maintain existing concrete bridges is by adopting an active preventive maintenance ; approach. An in-depth investigation of the combined deterioration effects of various deterioration mechanisms is needed ; to establish sound thresholds for harmful chemicals in concrete bridge elements. Such established thresholds are critical ; for cost-effective maintenance of concrete bridges. This study investigated the economy of preventive maintenance for ; concrete bridges. This report presents an in-depth chemical evaluation and preventive maintenance of existing highway ; concrete bridges. In addition, it presents implementation of the proposed preventive maintenance approach that is based ; on 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. Based on the finding of this study, preventive ; maintenance may require slightly higher initial cost, however, it leads to long-term cost saving over the service life of ; bridges.
  More +
• Format:
  PDF
• Funding:
  49997-27-25
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31205/dot_31205_DS1.pdf
• File Type:
  [PDF - 9.74 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:3f0f58458e44b94be600e525f9d160cb23f46dbfa1b24e5aac80f4a98c4d9f7a