GAP WATER QUALITY MEASURING METHOD AND GAP WATER QUALITY MEASURING INSTRUMENT

摘要

PPROBLEM TO BE SOLVED: To provide a gap water quality measuring method for precisely measuring the quantity of state related to the quality of the water in a crack and more precisely estimating a crack developing speed, and a gap water quality measuring instrument. PSOLUTION: The gap water quality sensor 36 of the gap water quality measuring instrument 18 has a gap forming member 31 containing gap forming parts 32a and 32b which form a gap 1 and electrodes 2a and 2b are attached to the gap forming part 32b in an electrically insulated state. The electrode 2a is arranged to the opening part 33 of the gap 1 and the electrode 2b is arranged to the leading end part 34 of the gap 1. The measuring instrument 37 of the gap water quality measuring instrument 18 has an ammeter 5 and an electric cable 4 containing wirings 4a and 4b. The wiring 4a is connected to the electrode 2a and the wiring 4b is connected to the electrode 2b. The ammeter 5 measures the current flowing across the electrodes 2a and 2b. PCOPYRIGHT: (C)2008,JPO&INPIT