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The National Academies

NCHRP Synthesis 20-05/Topic 15-03 [Final (Synthesis)]

Detecting Defects and Deterioration in Highway Structures
[ NCHRP 20-05 (Synthesis of Information Related to Highway Practices) ]

  Project Data

The need to detect defects and deterioration in highway structures ranges from reasons of safety to the prediction of load capacity to the information base for a bridge manangement system. The emphasis here is on test procedures that can be used in the field and guidance is given in interpreting the significance of measured values. Although it is usually possible to detect deterioration in a component of a structure, it is often difficult to assess the effect of the deterioration on the load-carrying capacity of the structure. Often, full scale testing is justified to measure the overall condition of a structure. A survey of current practices revealed that concrete structures are being tested more extensively than steel or timber structures.  The report for this topic can be purchased at http://www.trb.org/news/blurb_detail.asp?id=3439

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