䈖䈉䈋䈇䊐䉤䊷䊤䊛╙ 㪈㪈 ภ㩷 㪆㩷㪉㪇㪇㪊㪅㪈㩷㋕╭⣣㘩⺞ᩏᚻᴺ䈱㜞ᐲൻ䈮㑐䈜䉎⎇ⓥ
A STUDY ON AN EFFICIENT METHOD FOR EVALUATING CORROSION OF CONCRETE
REINFORCING STEEL᧻ጊ౏ᐕ䋪䊶ᄥ↰⾗㇢䋪䊶⮮ේ㋕ᦶ䋪䊶㊄ᧄᐽብ䋪

Kimitoshi MATSUYAMA, Shiro OHTA, Tetsuro FUJIWARA and Yasuhiro KANEMOTOElectrical methods and a depth of carbonation in cover are used to evaluate corrosion activityof steel reinforcement due to carbonation of concrete. To know a depth of carbonation incover, the carbonation depth and cover are measured by exposing and sampling the concrete.
These methods provide information at a sampling point. We developed a method forevaluating reinforcing steel corrosion that would be efficient due to the combined use of radarand drilling using the half-cell potential method. We applied the method on a reinforcedconcrete structure.

 Key Words :corrosion, carbonation, drilling, radar, half-cell potential㪈㪅㩷 䈲䈛䉄䈮㩷䈇䉎䇯⥄ὼ㔚૏ᴺ䈲䇮ㄭᐕ᷹ቯᣇᴺ䈏ⷙᩰൻ䈘䉏   䇮䈘䉌ᚒ䈏࿖䈮䈍䈇䈩䇮㋕╭䉮䊮䉪䊥䊷䊃᭴ㅧ‛䈱㋕╭⣣㘩䈏໧䈮ታ᭴ㅧ‛䈻䈱ㆡ↪䈏Ⴧട䈜䉎䉅䈱䈫ᦼᓙ䈘䉏䉎䈏䇮᷹ቯ୯㗴 䈫䈭䉎ਥ 䈭ഠ ൻ ᯏ ᭴ 䈫䈚䈩䇮ਛ ᕈ ൻ 䉇Ⴎ ኂ 䈭䈬䈏䈅䈕䉌䉏䈏䈎䈹䉍䉮䊮䉪䊥䊷䊃䈱ᕈ⾰䈮ᓇ㗀䉕ฃ䈔䉎䈢䉄䇮ฦ⒳䈱⵬ᱜ䉎䇯ਛ ᕈ ൻ 䈲䇮ᄢ ᳇ ਛ 䈱ੑ ㉄ ൻ ὇ ⚛ 䈏䉮䊮䉪䊥䊷䊃ౝ 䈮ᶐ ౉ᣇᴺ䈏ឭ᩺䈘䉏䈩䈇䉎 6) 䇯䈚䇮᳓ ㉄ ൻ 䉦䊦䉲䉡䊛䈱㉄ ൻ 䈮䉋䉎὇ ㉄ 䉦䊦䉲䉡䊛䈏↢ ᚑ 䈘䈠䈖䈪䇮ᧄ⎇ⓥ䈪䈲䇮㔚⏛ᵄ䊧䊷䉻ᴺ䋨એਅ䇮䊧䊷䉻ᴺ䈫๭䉏䇮⚦ሹṁᶧਛ䈱 pH 䈏ૐਅ䈜䉎⃻⽎䈪䈅䉎䇯䈖䉏䈮䉋䉍䇮䉮䈹䋩䈫䊄䊥䊦೥ ሹ ᴺ 䉕⥄ ὼ 㔚 ૏ ᷹ ቯ ᤨ 䈮ᵴ ↪ 䈜䉎䈖䈫䈮䉋䉍䇮䊮䉪䊥䊷䊃ౝㇱ䈱㍑᧚⣣㘩䈏ㅴⴕ䈚䇮䈵䈶ഀ䉏䈱⊒↢䇮䈎䈹䉍⥄ὼ㔚૏᷹ቯ૞ᬺ䈱ല₸ൻ䉕࿑䈦䈢䋨࿑䋭㪈䋩䇯䉁䈢䇮䊧䊷䉻䈱೸㔌䊶೸⪭䇮㍑᧚䈱ᢿ㕙ᰳ៊䈮䉋䉎⠴⩄ജ䈱ૐਅ䈭䈬䇮᭴

ᴺ䈮䉋䉎᷹ቯ⚿ᨐ䈫䊄䊥䊦೥ሹᴺ䉕↪䈇䈩ਛᕈൻᱷ䉍䉕㕙⊛ㅧ‛䈅䉎䈇䈲ㇱ᧚䈱⠴ਭᕈ⢻䈱ૐਅ䈏↢䈛䉎 䇯䈮ᛠ ី䈚䇮ਛᕈ ൻ ᱷ 䉍ಽ Ꮣ࿑ 䉕૞ ᚑ䈚䈢䇯䈖䈱ਛ ᕈ ൻᱷ䉍ಽਛ ᕈ ൻ 䈮㑐䈜䉎⺞ ᩏ 䈫䈚䈩䇮䊐䉢䊉䊷䊦䊐䉺䊧䉟䊮ᴺ 䈮䉋䉎Ꮣ ࿑ 䈫⥄ ὼ 㔚 ૏ ಽ Ꮣ ࿑ 䈫䉕㊀ 䈰ว 䉒䈞䉎䈖䈫䈮䉋䉍䇮䉮䊮䉪䊥ਛᕈൻᷓ䈘᷹ቯ䈏৻⥸⊛䈮ⴕ䉒䉏䈩䈇䉎䇯䊐䉢䊉䊷䊦䊐䉺䊧䉟䊷䊃ਛ䈱㋕╭⣣㘩⁁ᴫ䉕᦭ല䈮⹏ଔ䈜䉎䈖䈫䈏䈪䈐䈢䈱䈪ႎ䊮ᴺ䈮䉋䉎ਛᕈൻᷓ䈘᷹ቯ䈲䇮᭴ㅧ‛䈱䈲䈧䉍▎ᚲ䉇䉮䉝⹜๔䈜䉎䇯ᢱ 䈮ኻ䈚䈩ⴕ䉒䉏䉎䇯䈖䉏䉌䈱⹜ 㛎⚿ ᨐ 䈲䇮ା㗬 ᕈ䈏㜞䈇䉅䈱䈱䇮ዊⷙᮨ䈪䈲䈅䉎䈏⎕უ⹜㛎䈪䈅䉎䈢䉄䇮᭴ㅧ⠴ജ਄໧㪉㪅㩷 ኻ⽎᭴ㅧ‛䈫᷹ቯ▸࿐㩷㗴 䈫䈭䉌䈭䈇႐ ว 䈪䉅䈲䈧䉍䉇䉮䉝ណ ข 䈮ኻ 䈜䉎ᚲ ᦭ ⠪ 䈍䉋ኻ⽎᭴ㅧ‛䈲䇮ᤘ๺ 30 ᐕઍೋᦼ䈮ᑪ⸳䈘䉏䈢㋕╭䉮䊮䉪䈶▤ℂ⠪䈱ᔃℂ⊛ᛶ᛫䈏ᄢ䈐䈇႐ว䈏䈅䉎䇯䈖䈱䈢䉄䇮᭴ㅧ䊥䊷䊃᭴ㅧ‛䈪䈅䉎䇯ኻ⽎‛䈮䈲䇮᏷ 0.1䌾0.2mm ⒟ᐲ䈱䈵‛䈻䈱៊்䉕ᦨዊ㒢䈮ᛥ䈋䉎ᚻᴺ䈫䈚䈩䇮䊄䊥䊦೥ሹᴺ䈮䉋䉎䈶ഀ䉏䈏ᢔ⷗䈘䉏䇮㋕╭⣣㘩䈮䉋䉎೸㔌䊶೸⪭▎ᚲ䉅⷗䉌䉏ਛᕈൻᷓ䈘᷹ቯᣇᴺ䈏 ␠ ᣣᧄ㕖⎕უᬌᩏදળ䈪ⷙᩰൻ䈢䇯䈖䈱᭴ㅧ‛䈱⚂ 2m㬍2m 䈱▸࿐䈮ኻ䈚䈩㔚⏛ᵄ䊧䊷䉻䈘䉏䈩䈇䉎 䇯⣣㘩䈱㐿ᆎ䈫ਛᕈൻ䈱㑐ଥ䈲䇮㋕╭䈱䈎䈹䉍ෘ䈘䈫ਛᕈൻᴺ䈍䉋䈶䊄䊥䊦೥ሹᴺ䇮⥄ὼ 㔚૏ᴺ 䉕ㆡ ↪ 䈚䈢䇯᷹ቯ ▸ ࿐䈫ᄌ⁁䉕౮⌀䋭㪈 䈮ᢛℂ䈜䉎䇯ᷓ䈘䈱Ꮕ䈪ቯ⟵䈘䉏䉎ਛᕈൻᱷ䉍䈮䉋䈦䈩ᬌ⸛䈘䉏䈩䈍䉍䇮Ⴎಽ䉕฽䉁䈭䈇䉮䊮䉪䊥䊷䊃䈪⚂ 8mm䇮Ⴎಽ䉕฽䉃䉮䊮䉪䊥䊷䊃䈪⚂ 20mm 䈫䈘䉏䈩䈇䉎 䋳䋩 䇯৻ᣇ䇮䉮䊮䉪䊥䊷䊃ਛ䈱㋕╭⣣㘩䉕⺞ᩏ䈜䉎ᚻᴺ䈫䈚䈩䇮⥄ὼ㔚૏ᴺ䉇ಽᭂᛶ᛫ᴺ䈭䈬䈱㔚᳇ൻቇ⊛ᚻᴺ䈏ᵈ⋡䈘䉏䈩֣֣֣֣֣֣֣֣֣֣֣֣֣֣֣֣֣֣֣֣֣֣֣֣֣֣䋪㩷 ␠ળⅣႺ䉣䊮䉳䊆䉝䊥䊮䉫੐ᬺㇱ㩷 䍵䍐䍪䍙䍐䍖䍷䍭䍦䍚䍼䍰䍻䍢ㇱㇱ㩷㩷㪈㪊㪐㩷鉄筋腐食調査手法の高度化に関する研究

䊧䊷䉻 ᴺ䈮䉋䉎 ㋕╭ ૏⟎ 䈱ᛠី䊄䊥 䊦 ೥ ሹ 䈮 䉋 䉎 ⹜ 㛎䊶䈎䈹䉍ෘ᷹ቯ䊶ਛᕈൻᷓ䈘᷹ቯ䊶䉮䊮䉪䊥䊷䊃ਛ䈱฽᳓₸᷹ቯ⥄ ὼ 㔚 ૏ ᷹ ቯ 䈱 䈢 䉄䈱 ૞ ᬺ 䊶 ⹜ 㛎䊶㍑᧚ห჻䈱ዉㅢ⏕⹺䊶㍑᧚䈫㔚૏Ꮕ⸘䈱ធ⛯






⥄ὼ 㔚૏ 䈱᷹ ቯ౮⌀䋭㪈㩷 ᷹ቯኻ⽎䈫ᄌ⁁㩷࿑䋭㪈㩷 ㋕╭⣣㘩⺞ᩏ䈱ᵹ䉏㩷㪊㪅㩷 ᷹ቯᣇᴺ㩷䋨㪈䋩㩷 䊧䊷䉻ᴺ䈮䉋䉎㋕╭૏⟎䈱ᛠី䊧䊷䉻ᴺ䈮䉋䉍䇮䉮䊮䉪䊥䊷䊃ਛ䈱㋕╭૏⟎䉕㕙⊛䈮ᛠី䈚䈢䇯᷹ቯ䈮䈲䇮ᒰ␠䈏⁛⥄䈮㐿⊒䈚䈢ᄙ⋡⊛䊧䊷䉻⸘᷹䉲䉴䊁䊛䉕૶ ↪ 䈚䈢䇯ᄙ ⋡ ⊛ 䊧䊷䉻⸘ ᷹ 䉲䉴䊁䊛䈲䇮100䇮400䇮600䇮800䇮1,000䇮1,500MHz 䉁䈪䈱౐⒳㘃䈱๟ᵄᢙ䈏⇣䈭䉎 䉝 䊮 䊁 䊅 䉕 ᦭ 䈚 䈩 䈍 䉍 䇮 ᧄ ኻ ⽎ ‛ 䈮 ኻ 䈚 䈩 䈲 1,000 䇮
1,500MHz 䈱䉝䊮䊁䊅䉕૶↪䈚䈢䋨౮⌀䋭㪉䋩䇯ᧄ䉲䉴䊁䊛䈲䇮࿑䋭㪉䇮㪊 䈮␜䈜䉋䈉䈮䇮ၮḰᵄ䈍䉋䈶⋥ធᵄ䇮෻኿ᵄ䉕หᤨ䈮᷹ቯ䈜䉎䈖䈫䈮䉋䉍䇮ኻ⽎䉮䊮䉪䊥䊷䊃䈱⺃㔚₸䉕᷹ቯ䈚䇮♖ᐲ䈱㜞䈇䉮䊮䉪䊥䊷䊃ෘ䈘᷹ቯ䉕น⢻䈮䈚䈩䈇䉎  䇯䋨㪉䋩㩷 䊄䊥䊦೥ሹᴺ䈮䉋䉎᷹ቯ䈍䉋䈶⹜㛎㩷㩷㪈㪀㩷 䈎䈹䉍ෘ䈘᷹ቯ

䊧䊷䉻ᴺ 䈪ᛠ ី 䈚䈢㋕ ╭ ૏ ⟎ 䈮ኻ 䈚 䈩䊄䊥䊦೥ ሹ 䉕ⴕ 䈦䈢䇯䊄䊥䊦䈏㋕╭䈮㆐䈚䈢૏⟎䈪೥ሹ䉕஗ᱛ䈚䇮ሹ㐳䉕䊉䉩䉴䈪᷹ቯ䈜䉎䈖䈫䈮䉋䉍䈎䈹䉍ෘ䈘䉕ᛠី䈚䈢䇯㩷㩷㪉㪀㩷 ਛᕈൻᷓ䈘᷹ቯ䊄䊥䊦೥ሹ䈱㓙䈮ਛᕈൻᷓ䈘䉕᷹ቯ䈚䈢䇯ਛᕈൻᷓ䈘䈱᷹ቯ䈲䇮 ␠ ᣣᧄ㕖⎕უᬌᩏදળⷙᩰ䇸䊄䊥䊦೥ሹ☳䉕↪䈇䈢䉮䊮䉪䊥䊷䊃᭴ ㅧ ‛ 䈱ਛ ᕈ ൻ ᷓ 䈘⹜ 㛎 ᣇ ᴺ 䇹䉕ෳ ⠨ 䈮ታ ᣉ 䈚䈢䇯㩷㩷㪊㪀㩷 ㋕╭ห჻䈱ዉㅢ⏕⹺䈎䈹䉍ෘ䈘䉕᷹ቯ䈚䈢䊄䊥䊦ሹ䉕೑↪䈚䈩㈩⟎䈏⇣䈭䉎㋕╭ห ჻ 䈱ዉ ㅢ 䉕⏕ ⹺ 䈚䈢䇯ዉㅢ ⏕ ⹺ 䈮䈲䇮䊂䉳䉺䊦䊁䉴䉺䊷䉕↪䈇䈢䇯䈖䉏䈮䉋䉍䇮᷹ቯኻ⽎▸࿐ౝ䈱㋕╭ห჻䈏㔚᳇⊛䈮䈧䈭䈏䈦䈩䈇䉎䈖䈫䉕⏕⹺䈚䈢䇯࿑䋭㪉㩷 䊧䊷䉻⸘᷹᭎ᔨ࿑㩷140౮⌀䋭㪉㩷 ᄙ⋡⊛䊧䊷䉻⸘᷹䉲䉴䊁䊛㩷࿑䋭㪊㩷 䊧䊷䉻ᵄᒻ᭎ᔨ࿑㩷䈖䈉䈋䈇䊐䉤䊷䊤䊛╙ 㪈㪈 ภ㩷 㪆㩷㪉㪇㪇㪊㪅㪈㩷䋨㪊䋩㩷 ⥄ὼ㔚૏䈱᷹ቯ䈱⋥਄䈪⿛ᩏ䈘䈞䈩㔚૏䉕᷹ቯ䈚䈢䇯᷹ቯ䊏䉾䉼䈲⚂ 10cm㩷㩷㪈㪀㩷 ᾖว㔚ᭂ䈪䈅䉎䇯⥄ὼ㔚૏᷹ቯ䈲䇮ᾖว㔚ᭂ䈫䈚䈩㋦㔚ᭂ䉕૶↪䈚䈢䇯᷹ቯ೨䈮䇮㘻๺⎫㉄㌃㔚ᭂ䈫㋦㔚ᭂ䈱䉨䊞䊥䊑䊧䊷䉲䊢䊮䉕ⴕ䈇䇮㪋㪅㩷 ᷹ቯ⚿ᨐ㩷㘻๺⎫㉄㌃㔚ᭂ឵▚୯䉕᳞䉄䈢਄䈪䇮᷹ቯ䉕ታᣉ䈚䈢䇯䋨㪈䋩㩷 䊧䊷䉻ᴺ㩷㩷㪉㪀㩷 䉮䊮䉪䊥䊷䊃⴫㕙䈱೨ಣℂ㩷㩷㪈㪀㩷 䊧䊷䉻↹௝䈫ᵄᒻ᷹ቯኻ⽎䈱䉮䊮䉪䊥䊷䊃㕙䈏ੇ῎⁁ᘒ䈮䈅䉍䇮ධะ䈐䈪䈅䈦䊧䊷䉻↹௝䈫ᵄᒻ䈱଀䉕࿑䋭㪋 䈮␜䈜䇯࿑䋭㪋 䈪䇮䉝䊮䊁䊅䈢䈱䈪䇮৻ ᤨ 㑆 ⒟ ᐲ 䈱ᢿ ⛯ ⊛ 䈭ྃ 㔵 ᢔ ᳓ 䈪䇮䉮䊮䉪䊥䊷䊃⴫⿛ᩏ〒㔌䈱Ⴧട䈮ኻ䈚䇮ၮḰᵄ䈍䉋䈶⋥ធᵄ䈱೔㆐ᤨ㑆䈲㕙䈱ḨẢ⁁ᘒ䉕ᓧ䈢䇯⥄ὼ㔚૏䈱᷹ቯᤨ䈮䇮Ꮢ⽼䈱㔚᳇ᛶ৻ቯ䈪䈅䉎䈏䇮㋕╭䈎䉌䈱෻኿ᵄ䈮䈲䇮೔㆐ᤨ㑆䈱ㆃᑧ䈏⷗᛫ ᑼ 䈱฽ ᳓ ₸ ⸘ 䈮䉋䉍䉮䊮䉪䊥䊷䊃⴫ ጀ ㇱ 䈱฽ ᳓ ₸ 䉕᷹ ቯ 䈚䉌䉏䉎䇯䈢䇯㩷㩷㪉㪀㩷 ㈩╭䈫䈎䈹䉍ෘ䈘ಽᏓ㩷㩷㪊㪀㩷 ⥄ὼ㔚૏䈱᷹ቯ䊧䊷䉻ᴺ䈪ᛠី䈚䈢㋕╭૏⟎䉕࿑䋭㪌 䈮␜䈜䇯䉁䈢䇮ᮮ╭⥄ὼ㔚૏䈱᷹ቯ䈲䇮Ꮢ⽼䈱㔚૏Ꮕ⸘䉕૶↪䈚䈢䇯᷹ቯ▎䈱䈎䈹䉍ෘ䈘䉕▚಴䈚䈢⚿ᨐ䉕࿑䋭㪍 䈮ᢛℂ䈜䉎䇯࿑䋭㪍 䈮␜ᚲ䈲⴫㕙䈮ㄭ䈇ᮮ╭䈮ኻ䈚䈩ⴕ䈇䇮࿁ォᑼᾖว㔚ᭂ䉕ᮮ╭䈜䉋䈉䈮䇮᷹ ቯ ▸ ࿐ 䈱Ꮐ ਄ 䈎䉌ฝ ਅ 䈱ᣇ ะ 䈮䇮䈎䈹䉍ෘ 䈘䈏ዊ䈘䈒䈭䉎௑ะ䈏⷗䉌䉏䉎䇯㩿㫅㫊㪀 㪇䊧䊷䉻વ៝ᤨ㑆㪉ၮḰᵄ䉮䊮䉪䊥䊷䊃⴫㕙㪋䊧䊷䉻વ៝ᤨ㑆䈱ᄌൻ㪍⋥ធᵄ෻኿ᵄ㪏㪈㪇㪇㪈㪇㪇㪌㪇䉝䊮䊁䊅⿛ᩏ〒㔌㪈㪌㪇 㩿㫄㫄㪀 䋨㤥䋩䋨⊕䋩⍫ශ䈱૏⟎䈮䈍䈔䉎ᵄᒻ࿑䋭㪋㩷 䊧䊷䉻↹௝䈫ᵄᒻ଀㩷㪋㪇㪄㪌㪇㪊㪇㪄㪋㪇㪉㪇㪄㪊㪇㪈㪇㪄㪉㪇㪇㪄㪈㪇㩿㫄㫄㪀࿑䋭㪌㩷 ផቯ㈩╭࿑䋨ታ✢ㇱ䋩㩷࿑䋭㪍㩷 䈎䈹䉍ෘ䈘ಽᏓ࿑㩷㪈㪋㪈㩷㋕╭⣣㘩⺞ᩏᚻᴺߩ㜞ᐲൻߦ㑐ߔࠆ⎇ⓥ䋨㪉䋩㩷 䊄䊥䊦೥ሹᴺ ਛᕈൻᷓ䈘᷹ቯ⚿ᨐ㩷㩷㪉㪀㩷 ⥄ὼ㔚૏ಽᏓ䊄䊥䊦೥ሹᴺ䈪ਛᕈൻᷓ䈘䉕᷹ቯ䈚䈢⚿ᨐ䈫䉮䉝䋨஥㕙䈍⥄ὼ㔚૏᷹ቯ⚿ᨐ䉕╬㔚૏✢࿑䈫䈚䈩␜䈜䋨࿑䋭㪐䋩䇯㔚䉋䈶ഀⵚ㕙䋩䈮䉋䉎⚿ᨐ䉕࿑䋭㪎 䈮ᢛℂ䈜䉎䇯࿑䋭㪎 䈮⷗䉌䉏૏䈱ಽᏓ䈲䇮ਅㇱ䈾䈬㔚૏䈏ඬ䈭䋨ዊ䈘䈒䈭䉎䋩௑ะ䈏⷗䉌䉏䉎䉋䈉䈮䇮ഀⵚ㕙䈪䈱᷹ቯ⚿ᨐ䇮䉮䉝஥㕙䈪䈱᷹ቯ⚿ᨐ䇮䊄䊥䉎䉅䈱䈱䇮㔚૏䈱ో䈩䈏-350mV એ਄䈱୯䉕␜䈚䈢䇯䊦೥ሹ䈮䉋䉎᷹ቯ⚿ᨐ䈱㗅䈪ขᓧ䈚䈢䊂䊷䉺䈱᏷䈏Ⴧᄢ䈚䈩䈇䉎䇯ᐔဋ୯䈮⌕⋡䈜䉎䈫䇮୘䇱䈱ᐔဋ୯䈏 15䌾20mm䈱▸࿐ౝ䈮෼䉁䈦䈩䈇䉎䇯䋨㪊䋩㩷 ⥄ὼ㔚૏ᴺ㩷㩷㪈㪀㩷 䉮䊮䉪䊥䊷䊃⴫ጀㇱ䈱฽᳓₸䊮䉪䊥䊷䊃ᷓ䈘 20mm䋩䈱฽᳓₸䈲⚂ 1.2%䈪䈅䉍䇮㕖Ᏹ䈮ੇ㪉㪌㪇㪄㪊㪇㪇㪉㪇㪇㪄㪉㪌㪇㪈㪌㪇㪄㪉㪇㪇㩿㫄㪭㩷㪚㪪㪜㪀῎ 䈚䈩䈇䉎⁁ ᘒ 䈪䈅䈦䈢䇯ྃ 㔵 ᢔ ᳓ ᓟ 䈲䇮⴫ ጀ 䈱฽ ᳓ ₸ 䈏㩿䋭㫄㪭㩷㪚㪪㪜㪀ྃ 㔵 ᢔ ᳓ ೨ ᓟ 䈱䉮䊮䉪䊥䊷䊃⴫ ጀ ㇱ 䈮䈍䈔䉎฽ ᳓ ₸ ᷹ ቯ⚿ᨐ䉕࿑䋭㪏 䈮␜䈜䇯ྃ㔵೨䈱䉮䊮䉪䊥䊷䊃⴫ጀ䋨࿑䋭㪏 䈱䉮3.0%೨ᓟ䈱⁁ᘒ䈮ផ⒖䈚䈩䈇䉎䇯 㪋㪇࿑䋭㪐㩷 ⥄ὼ㔚૏ಽᏓ࿑㩷ਛᕈൻᷓ䈘㩿㫄㫄㪀 㪊㪇㪌㪅㩷 ⠨ኤ㩷 㪉㪇䋨㪈䋩㩷 䊧䊷䉻ᴺ䈱䈎䈹䉍ෘ䈘᷹ቯ♖ᐲ䊧䊷䉻⸘᷹䈮䉋䉎ផቯ䈎䈹䉍ෘ䈘䈫䊄䊥䊦೥ሹ䈮䉋䉎䈎䈹䉍 㪈㪇ෘ䈘᷹ቯ⚿ᨐ䉕Ყセ䈚䈢䉅䈱䉕࿑䋭㪈㪇 䈮␜䈜䇯ਔ⠪䈱୯䈱Ꮕ䈲 4mm એౝ䈪䈅䈦䈢䇯ਔ⠪䉕Ყセ䈚䈢႐ว䇮䊧䊷䉻ᴺ䈮㪇䉋䉎䈎䈹䉍ෘ䈘䈏䇮䊄䊥䊦೥ሹ䈮䉋䉎䉅䈱䉋䉍䉅䇮䉇䉇ᄢ䈐䈇௑ᢿ㕙㪈 ᢿ㕙㪉 ᢿ㕙㪊 ஥㕙㪈 ஥㕙㪉 ஥㕙㪊 䊄䊥䊦ਛᕈൻᷓ䈘᷹ቯᣇᴺ࿑䋭㪎㩷 ਛᕈൻᷓ䈘᷹ቯ⚿ᨐ㩷䈩䈍䉍䇮䉮䊮䉪䊥䊷䊃䈱⺃㔚₸䈱⸳ቯ䈮䉋䉍䇮䈎䈹䉍ෘ䈘䈱୯䈏ੇ῎㪈ḨẢ㪉㪍㪌฽᳓₸䋨䋦䋩㪊㪉㪈㪇㪇㪉㪇㪋㪇㪍㪇䉮䊮䉪䊥䊷䊃ᷓ䈘䋨㫄㫄䋩࿑䋭㪏㩷 䉮䊮䉪䊥䊷䊃䈱฽᳓₸ಽᏓ㩷㪈㪋㪉㩷⇣䈭䉎䈖䈫䈮䈭䉎䇯ḨẢ㪈ḨẢ㪋㪋ੇ῎㪉ḨẢ㪊䊧䊷䉻䈮䉋䉎ផቯ䈎䈹䉍ෘ䈘䋨㫄㫄䋩㑆䈱⺒ข䉍ᣇᴺ䉇䉮䊮䉪䊥䊷䊃䈱⺃㔚₸⸳ቯ䈱ᓇ㗀䈏⠨䈋䉌䉏䉎䇯䉮䊮䉪䊥䊷䊃䈱⺃ 㔚 ₸ 䈲䇮㔚 ⏛ ᵄ 䈱વ ៝ ㅦ ᐲ 䈮ኻᔕ 䈚ะ 䈏⷗ 䉌䉏䈢䇯䈖䈱ේ ࿃ 䈫䈚䈩䇮䊧䊷䉻ᵄ ᒻ䈮䈍䈔䉎વ ៝ᤨ㪏㪇㪍㪇㪋㪇㪉㪇㪇㪇㪉㪇㪋㪇㪍㪇䊄䊥䊦೥ሹ䈮䉋䉎䈎䈹䉍ෘ䈘᷹ቯ⚿ᨐ䋨㫄㫄䋩࿑䋭㪈㪇㩷 䈎䈹䉍ෘ䈘ផቯ♖ᐲ㩷䈖䈉䈋䈇䊐䉤䊷䊤䊛╙ 㪈㪈 ภ㩷 㪆㩷㪉㪇㪇㪊㪅㪈㩷䋨㪉䋩㩷 ਛᕈൻᷓ䈘᷹ቯᣇᴺ䈫ਛᕈൻᱷ䉍䈖䈱䉋䈉䈮䇮⥄ὼ㔚૏ಽᏓ䈱䉂䈪䈲⣣㘩⁁ᴫ䉕ផቯ䈜䉎䈖䈫䈏࿎ 㔍 䈭႐ ว 䈮䇮ਛ ᕈ ൻ ᱷ䉍ಽ Ꮣ 䉕㊀ 䈰䉎䈖䈫䈮䉋䉍䇮⣣ 㘩㩷㩷㪈㪀㩷 ਛᕈൻᷓ䈘᷹ቯᣇᴺ䉮䉝䈮䉋䉎ਛ ᕈ ൻ ᷓ 䈘᷹ ቯ 䉕ⴕ 䈉႐ ว 䇮ഀ ⵚ 㕙 䈪䈱᷹ ቯ୯䈱䈳䉌䈧䈐䈏ዊ䈘䈒䇮ഀⵚ㕙䉕ኻ⽎䈫䈜䉎ᣇᴺ䈏᦭ല䈪䈅䉎䈖䈫䉕⏕⹺䈚䈢䋨࿑䋭㪎䋩䇯䉁䈢䇮䊄䊥䊦೥ሹ䈮䉋䉎ਛᕈൻᷓ䈘᷹ ቯ 䈮䈧䈇䈩䈲᷹ ቯ ૏ ⟎ 䈏⇣ 䈭䉎䈢䉄䇮䉮䉝䈱⚿ ᨐ 䈫⋥ ធᲧセ䈪䈐䈭䈇䈏䇮䊄䊥䊦೥ሹ䈲䉮䉝ណข䈮Ყ䈼䈩ዋ䈭䈇ഭജ⁁ᴫ䉕᦭ല䈮⹏ଔ䈜䉎䈖䈫䈏น⢻䈪䈅䉎䋨࿑䋭㪈㪊䋩䇯㪍㪅㩷 䉁䈫䉄㩷
ᧄ⎇ⓥ䈪ᓧ䉌䉏䈢⚿⺰䉕એਅ䈮೉⸥䈜䉎䇯㽲㩷 ᒰ␠䈏㐿⊒䈚䈢ᄙ⋡⊛䊧䊷䉻⸘᷹䉲䉴䊁䊛䈮䉋䉍䇮㋕╭䈪ᄙὐ䈱䊂䊷䉺䉕ណข䈪䈐䉎䈱䈪᦭ല䈭ᚻᴺ䈪䈅䉎䈫⠨䈋䉌䈱䈎䈹䉍ෘ䈘ಽᏓ䉕⚂ 4mm 䈱♖ᐲ䈪⴫␜䈜䉎䈖䈫䈏น䉏䉎䇯⢻䈪䈅䉎䇯㽳㩷 䊄䊥䊦೥ሹ ᴺ䈲䇮㋕╭䈱䈎䈹䉍ෘ䈘䈱᷹ቯ 䈫㋕╭ห჻ 䈱㩷㩷㪉㪀㩷 ਛᕈൻᱷ䉍ಽᏓ
䊧䊷䉻ᴺ䈮䉋䉍ᓧ䉌䉏䈢䈎䈹䉍ෘ䈘ಽᏓ䈮ਛᕈൻᷓ䈘䉕⠨ᘦ 䈚䇮ਛ ᕈ ൻ ᱷ 䉍ಽ Ꮣ 䉕ᓧ 䈢䋨࿑ 䋭㪈㪈䋩䇯ਛ ᕈ ൻ ᱷ 䉍䈱▚ ಴䈲䇮䈎䈹䉍ෘ䈘䈫ਛᕈൻᷓ䈘䋨䊄䊥䊦೥ሹᴺ䈱ᐔဋ䋺16mm䋩䈱
Ꮕ 䈮䉋䉍᳞ 䉄䈢䇯࿑ 䋭㪈㪈 䈮⷗ 䉌䉏䉎䉋䈉䈮䇮᷹ ቯ ▸ ࿐ 䈱⚂40%䈱▸࿐䈪䇮ਛᕈൻᱷ䉍䈏 10mm એਅ䉕␜䈚䇮㋕╭૏⟎䉁䈪ਛᕈൻ䈏㆐䈚䈩䈇䉎ㇱಽ䉅⷗䉌䉏䈢䇯ዉㅢ⹜㛎䇮ਛᕈൻᷓ䈘䉇฽᳓₸᷹ቯ䉕౗䈰䉎䈖䈫䈏䈪䈐䉎䈱䈪䇮⥄ὼ㔚૏᷹ቯ૞ᬺ䈱ല₸ൻ䈮᦭ല䈪䈅䉎䇯㩷 㩷㽴㩷 䊧䊷䉻ᴺ䈪ᓧ䉌䉏䉎䈎䈹䉍ෘ䈘䈫ਛᕈൻᷓ䈘᷹ቯ⚿ᨐ䈮䉋䉍䇮ਛᕈൻᱷ䉍ಽᏓ࿑䉕૞ᚑ䈜䉎䈖䈫䈏น⢻䈪䈅䉎䇯㩷㽵㩷 ਛ ᕈ ൻ ᱷ 䉍ಽᏓ ࿑ 䈫⥄ ὼ㔚૏ ಽ Ꮣ ࿑ 䉕㊀䈰ว 䉒䈞䉎䈖䈫䈮䉋䉍䇮㋕ ╭ ⣣ 㘩 ⁁ ᴫ 䉕᦭ ല 䈮⹏ ଔ 䈜䉎䈖䈫䈏น ⢻ 䈪䈅䉎䇯㩷੹࿁䈱ᬌ⸛䈪䈲䇮ਛᕈൻᱷ䉍ಽᏓ䉕ᓧ䉎䈢䉄䈮䇮䊄䊥䊦೥䋨㪊䋩㩷 ㋕╭⣣㘩䈱⹏ଔ

ሹᴺ䈪᷹ቯ䈚䈢ਛᕈൻᷓ䈘䈱ᐔဋ୯䉕↪䈇䈢䇯᷹ቯ▸࿐䈏ᧄ⺞ᩏኻ⽎䈱᷹ቯ⥄ὼ㔚૏䈲䇮㘻๺⎫㉄㌃㔚ᭂ឵▚䈪

-350mV એ਄䉕␜䈚䇮ASTM C 876 䈮䉋䉎⹏ଔ  䈪䈲ਇ⏕ቯ䈫䈭䉍䇮⣣㘩⁁ᴫ䉕್ᢿ䈜䉎䈖䈫䈏㔍䈚䈇䇯ᐢ䈇႐ว䈮䈲䇮ᄙ䈒䈱▎ᚲ䈪䊄䊥䊦೥ሹ䈮䉋䉎ਛᕈൻᷓ䈘᷹ቯ 䉕ታ ᣉ 䈚䇮ਛ ᕈ ൻ ᷓ 䈘ಽ Ꮣ 䉕᳞ 䉄䈢਄ 䈪䇮ਛ ᕈ ൻ ᱷ 䉍ಽᏓ࿑䉕૞ᚑ䈚䇮⥄ὼ㔚૏ಽᏓ䈫ኻᔕ䈘䈞䉎䈖䈫䈪㋕╭⣣㘩⹏䈠䈖䈪䇮ਛᕈൻᱷ䉍ಽᏓ࿑䈫⥄ὼ㔚૏ಽᏓ࿑䉕㊀䈰ว䉒䈞ଔ䉕ⴕ䈇䈢䈇䇯䈢䉅䈱䉕࿑䋭㪈㪉 䈮␜䈜䇯࿑ਛ䈱䉫䊧䊷䉴䉬䊷䊦䈲ㆡᒰ䈮⺞ᢛ䈚䈢䇯࿑䋭㪈㪉 䈮䈍䈇䈩䇮䉫䊧䊷䈱Ớ䈇ㇱಽ䈾䈬ਛᕈൻᱷ䉍䈏ዋ䈭䈒䈎䈧㔚૏䈏ඬ䈪䈅䉎䋨ዊ䈘䈒䈭䉎䋩௑ะ䉕␜䈜䇯ᧄ⺞ᩏ▸࿐ౝ䈮䈍䈇䈩ታᣉ䈚䈢䈎䈹䉍䉮䊮䉪䊥䊷䊃䈱䈲䈧䉍䈍䉋䈶⋡ⷞ⺞ᩏ䈮䉋䉎㋕╭䈱⣣㘩⁁ᴫ䈲䇮ਅㇱ䈮૏⟎䈜䉎㋕╭䈮⣣㘩䈏⷗䉌䉏䇮਄ㇱ䈮䈲⷗䉌䉏䈭䈎䈦䈢䇯䈖䈱䈖䈫䈲䇮࿑䋭㪈㪉 䈱㋕╭⣣㘩⹏ଔ⚿ᨐ䈫ታ㓙䈱㋕╭⣣㘩⁁ᴫ䈮⦟䈇ኻᔕ䈏䈅䉎䈖䈫䉕␜䈚䈩䈇䉎䇯㪊㪇㪄㪋㪇㪉㪇㪄㪊㪇㪈㪇㪄㪉㪇㪇㪄㪈㪇㪄㪈㪇㪄㪇㩷㩷࿑䋭㪈㪈㩷 ਛᕈൻᱷ䉍ಽᏓ࿑㩷࿑䋭㪈㪉㩷 ㋕╭⣣㘩⹏ଔ଀㩷㪈㪋㪊㩷㋕╭⣣㘩⺞ᩏᚻᴺߩ㜞ᐲൻߦ㑐ߔࠆ⎇ⓥ૛ಹใ‫ڔ‬က࿑నඨౕ݁ખѾက࿑న༕ࣖన䉮䊮䉪䊥䊷䊃⴫㕙䈱↹௝䉁䈢䈲ᄌ⁁࿑࿑䋭㪈㪊㩷 ㋕╭⣣㘩⹏ଔᣇᴺ䈱৻଀㩷⻢ ㄉ 䋺⥄ ὼ 㔚 ૏ ᴺ 䈮㑐 䈚䈩䇮 ᩣ ྾ ࿖ ✚ ว ⎇ ⓥ ᚲ 䈱ᮮ ↰᳁䇮ᣣᧄ㒐ⲁᎿᬺ ᩣ 䈱ጊᧄ᳁䈮䈗ᜰዉ䈇䈢䈣䈐䉁䈚䈢䇯䈖ෳ⠨ᢥ₂㩷1)(␠)ᣣᧄ䉮䊮䉪䊥䊷䊃Ꮏቇදળ䋺䉮䊮䉪䊥䊷䊃⸻ᢿᛛⴚ㵬01[ၮ␆✬]䇮pp.32-33䇮2001. 3䈖䈮⸥䈚䈩䇮䈍␞䉕↳䈚਄䈕䉁䈜䇯 ␠ ᣣᧄ㕖⎕უᬌᩏදળ䋺NDIS3419 䊄䊥䊦೥ሹ䉕↪䈇䈢䉮䊮䉪䊥䊷䊃᭴ㅧ‛䈱ਛᕈൻᷓ䈘⹜㛎ᣇᴺ䇮1999. 8

 ␠ ᣣᧄ䉮䊮䉪䊥䊷䊃Ꮏቇදળ䋺䉮䊮䉪䊥䊷䊃⸻ᢿᛛⴚ㵬01[ၮ␆✬]䇮
pp.36-37䇮2001. 3

 ␠ ࿯ᧁቇળ䉮䊮䉪䊥䊷䊃ᆔຬળ⣣㘩㒐㘩ዊᆔຬળ䋺㋕╭⣣㘩䊶㒐㘩䈍䉋䈶⵬ୃ䈮㑐䈜䉎⎇ⓥ䈱⃻⁁䈫੹ᓟ䈱േะ䇮pp.113-129䇮
1997. 12 ␠ ࿯ᧁቇળ䉮䊮䉪䊥䊷䊃ᆔຬળ⣣㘩㒐㘩ዊᆔຬળ䋺㋕╭⣣㘩䊶㒐㘩䈍䉋䈶⵬ୃ䈮㑐䈜䉎⎇ⓥ䈱⃻⁁䈫੹ᓟ䈱േะ䋨䈠䈱 2䋩䇮
pp.247-256䇮2000. 126)૒䇱ᧁቁᒾ䇮㘵ፉ੧䇮┙᧻⧷ା䋺⥄ὼ㔚૏䈮䉋䉎㋕╭⣣㘩್ቯ䈮㑐䈜䉎৻⠨ኤ䇮䉮䊮䉪䊥䊷䊃Ꮏቇදળᐕᰴ⺰ᢥႎ๔㓸䇮Vol.18䇮No.
1䇮pp. 801-806䇮1996.67)

ᄥ↰⾗㇢䇮ศ↰ౖ᣿䇮⮮ේ㋕ᦶ䇮᧻ጊ౏ᐕ䇮㊄ᧄᐽብ䋺䊧䊷䉱䊶䊧
䊷䉻ᴺ䈮䉋䉎᳓〝䊃䊮䊈䊦䈱⠧᧎ൻ⹏ଔ䇮᭴ㅧ‛䈱⸻ᢿ䈮㑐䈜䉎䉲䊮䊘䉳䉡䊛⺰ᢥ㓸䇮pp.17-22䇮1998.78)

ASTM C 876-91 䋺 Standard Test Method for Half-Cell
Potentials for Uncoated Steel in Concrete, 1999㪈㪋㪋㩷