In NDT methods Visual inspection is one of
important and powerful method, and is the first steps in the assessment of a
concrete structure. Visual inspection can provide lot of information that
result in positive identification of the cause of observed distress. Its efficiency
depends on the knowledge and experience of the investigator. Knowledge in
structural engineering, concrete materials, and construction methods is
required to get the most information from visual inspection. Before a detailed
visual inspection is performed; the investigator should develop and follow a
definite plan to maximize the quality of the record data. Visual inspection has
the clear limitation that only visible surface can be inspected. Internal
defects were unobserved and does not result in quantitative information is
about the properties of the concrete.
Author
Kaushal Kishore
Materials Engineer, Roorkee
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