A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Long-Term Evaluation of Unprotected Concrete Bridge Decks
The report describes performance through 1982 of the riding surfaces of 77 concrete bridge-deck spans built in New York between 1964 and 1972. They were built as part of regular construction programs for the period, but were identified by random sampling for long-term observation. All have integral wearing surfaces without extraordinary protective treatment, and all were built under concrete specifications that were essentially the same. Interest in observing the performance of these decks developed originally from a concern for the rapid deterioration that many were experiencing because of corroding slab reinforcement, and from a need to predict the effectiveness of deeper concrete cover (i.e., over 2 in.) above that reinforcement as a preventive design option. Shallow cover had already been identified by the mid 1960s as one design element strongly associated with early reinforcement corrosion and concrete spalling, and many highway agencies including New York's had increased their cover requirement to 2 in.
Long-Term Evaluation of Unprotected Concrete Bridge Decks
The report describes performance through 1982 of the riding surfaces of 77 concrete bridge-deck spans built in New York between 1964 and 1972. They were built as part of regular construction programs for the period, but were identified by random sampling for long-term observation. All have integral wearing surfaces without extraordinary protective treatment, and all were built under concrete specifications that were essentially the same. Interest in observing the performance of these decks developed originally from a concern for the rapid deterioration that many were experiencing because of corroding slab reinforcement, and from a need to predict the effectiveness of deeper concrete cover (i.e., over 2 in.) above that reinforcement as a preventive design option. Shallow cover had already been identified by the mid 1960s as one design element strongly associated with early reinforcement corrosion and concrete spalling, and many highway agencies including New York's had increased their cover requirement to 2 in.
Long-Term Evaluation of Unprotected Concrete Bridge Decks
W. P. Chamberlin (author)
1985
51 pages
Report
No indication
English
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