| 摘要 |
PROBLEM TO BE SOLVED: To provide a salt content measuring method for performing very simple and highly accurate measurement with slight restrictions or load on work, the method being for measuring salt content in hardened concrete and hardened mortar and for performing measurement even at a degradation diagnosis job site for a concrete mortar structure. SOLUTION: According to this method for measuring salt content in hardened concrete mortar, organic acid anhydride is added to hardened concrete mortar to extract chloride therefrom, then the chloride is neutralized by adding thereto a neutralizing agent of calcium carbonate or calcium hydroxide, a liquid with organic acid calcium deposited thereinto by neutralization is filtered, and the chloride concentration of a filtrate is measured. COPYRIGHT: (C)2005,JPO&NCIPI
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