There is salt damage in one of the causes of the deterioration of ferroconcrete. The possibility of presuming the amount of salinity in concrete by using the electromagnetic radiation method and the impedance method from a current research is found. If understanding the amount of salinity in a concrete structure by the nondestructive testing becomes possible, finding damage due to the salt damage at the early stage becomes possible by executing a regular examination, and it comes to be able to consider measures to match to the level of damage at an early stage. In this research, the experiment data of the electromagnetic radiation method in a comparison, an examination, and a real structure and the core collection data were compared and whether the distribution of the amount of salinity in concrete was able to be calculated by combining the experiment data with a point measurement of a respect measurement of the electromagnetic radiation method in the laboratory experiment and the impedance method was examined. The influence that the putting on depth compared with the wash cement and the density of salinity and sort of salt water exerted on the experiment value by the electromagnetic radiation method and the impedance method was clarified iron as a result. Moreover, the possibility that the presumption distribution of the amount of salinity was able to be made from both examination method was able to be found.

114 工学部 (旧) ・工学研究科 ＞ 学位論文 ＞ 修士論文