However, for smaller crack (0.1–0.5 mm) detection, addition of adding water was required. It was concluded that the FT is able to detect surface cracks with widths between 0.5 mm and 1 mm. proposed a contactless short-duration pulsed thermography Flash Thermography (FT) method for surface crack detection. Numerous studies have been conducted to assess surface breaking cracks in concrete. Severe cracking often affects serviceability and the integrity of a structure. Cracks are normally formed due to one or a combination of factors such as drying shrinkage, thermal contraction, restraint (external or internal) to shortening, subgrade settlement, and applied loads. Civil structures are susceptible to various kinds of defects such as cracking, spalling, creeping, honeycombing, voids and delamination of cover.
0 kommentar(er)
