| 摘要 |
PROBLEM TO BE SOLVED: To provide an alkali aggregate reaction determination method capable of easily and accurately determining the progression state of alkali aggregate reaction of a concrete structure. SOLUTION: The alkali aggregate reaction determination method comprises a core sampling process of sampling a test core from the concrete structure, an excitation process of generating a longitudinal wave elastic wave in the test core, a receiving process of receiving the longitudinal wave elastic wave, an analysis process of analyzing a received signal and determining the propagation velocity of the longitudinal wave elastic wave in the test core, and a determination process of determining the progression state of the alkali aggregate reaction of the concrete structure based on the propagation velocity of the longitudinal wave elastic wave obtained in the analysis process. In the determination process, when the propagation velocity of the longitudinal wave elastic wave in a predetermined time obtained in the analysis process is a predetermined value or higher, it is determined as a sound concrete structure. COPYRIGHT: (C)2008,JPO&INPIT |
