Evaluation of Aging of Reinforced Concrete Structures by Laser-Induced Breakdown Spectroscopy of Productrs of Reinforcement CorrosionстатьяИсследовательская статья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 16 декабря 2020 г.
Аннотация:Laser-induced breakdown spectroscopy (LIBS) is considered as a method for elemental analysis of concrete in situ. However, the content of chlorine responsible for corrosion of iron reinforcements may be lower than the LIBS sensitivity needed to detect corrosion at the initial stage. This is especially true for the portable LIBS systems without gating and signal amplification. To detect corrosion, it is proposed to use analytical signals of elements-products of reinforcement corrosion (Fe, Mn, Cr) when they emerge on the concrete surface. It was found that the signals of iron, manganese, and especially chromium can be reliably registered using LIBZ-200 only on the surface areas painted with corrosion products.