補修・補強（材料） (1)

[V-210] Study on measurement method of nitrite ion concentration in concrete using Griess-Romijn nitrite reagent

*Takeshi Tokunou¹, Kentarou Omori², Shigeyuki Sogo³, Nobufumi Takeda⁴ (1. Japan Concrete Maintenance Association, 2. Nissan Chemical, 3. Near Future Concrete Association, 4. Hiroshima Institute of Technology)

Keywords:nitrite ion, surface impregnated material, salt attack, Griess-Romijn, ion chromatograph