JPS6210948B2 - - Google Patents

Info

Publication number

JPS6210948B2

JPS6210948B2 JP2947280A JP2947280A JPS6210948B2 JP S6210948 B2 JPS6210948 B2 JP S6210948B2 JP 2947280 A JP2947280 A JP 2947280A JP 2947280 A JP2947280 A JP 2947280A JP S6210948 B2 JPS6210948 B2 JP S6210948B2

Authority

JP

Japan

Prior art keywords

mortar

steel

concrete

aqueous solution

hydroxybenzotriazole

Prior art date

1980-03-08

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

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• 229910000831 Steel Inorganic materials 0.000 claims description 30
• 239000010959 steel Substances 0.000 claims description 30
• 239000004570 mortar (masonry) Substances 0.000 claims description 21
• 239000000463 material Substances 0.000 claims description 20
• 239000007864 aqueous solution Substances 0.000 claims description 18
• 239000004567 concrete Substances 0.000 claims description 17
• JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 15
• AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 14
• 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 14
• 239000000920 calcium hydroxide Substances 0.000 claims description 14
• ASOKPJOREAFHNY-UHFFFAOYSA-N 1-Hydroxybenzotriazole Chemical compound C1=CC=C2N(O)N=NC2=C1 ASOKPJOREAFHNY-UHFFFAOYSA-N 0.000 claims description 13
• 150000001875 compounds Chemical class 0.000 claims description 11
• 230000002265 prevention Effects 0.000 claims description 8
• 238000000034 method Methods 0.000 claims description 5
• 239000004568 cement Substances 0.000 description 13
• 229910001294 Reinforcing steel Inorganic materials 0.000 description 7
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
• AZFNGPAYDKGCRB-XCPIVNJJSA-M [(1s,2s)-2-amino-1,2-diphenylethyl]-(4-methylphenyl)sulfonylazanide;chlororuthenium(1+);1-methyl-4-propan-2-ylbenzene Chemical compound [Ru+]Cl.CC(C)C1=CC=C(C)C=C1.C1=CC(C)=CC=C1S(=O)(=O)[N-][C@@H](C=1C=CC=CC=1)[C@@H](N)C1=CC=CC=C1 AZFNGPAYDKGCRB-XCPIVNJJSA-M 0.000 description 6
• 238000005260 corrosion Methods 0.000 description 6
• 230000000694 effects Effects 0.000 description 6
• 239000000835 fiber Substances 0.000 description 6
• 235000010289 potassium nitrite Nutrition 0.000 description 6
• 239000004304 potassium nitrite Substances 0.000 description 6
• 150000002826 nitrites Chemical class 0.000 description 5
• 239000004576 sand Substances 0.000 description 5
• 230000007797 corrosion Effects 0.000 description 4
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
• 230000002378 acidificating effect Effects 0.000 description 2
• 230000000052 comparative effect Effects 0.000 description 2
• 239000011150 reinforced concrete Substances 0.000 description 2
• 150000003839 salts Chemical class 0.000 description 2
• 238000004381 surface treatment Methods 0.000 description 2
• 230000032683 aging Effects 0.000 description 1
• 230000009286 beneficial effect Effects 0.000 description 1
• 239000011575 calcium Substances 0.000 description 1
• DZPYZQDOGIPDDF-UHFFFAOYSA-N calcium;1-hydroxybenzotriazole Chemical compound [Ca].C1=CC=C2N(O)N=NC2=C1 DZPYZQDOGIPDDF-UHFFFAOYSA-N 0.000 description 1
• 238000010276 construction Methods 0.000 description 1
• 238000007796 conventional method Methods 0.000 description 1
• 230000007423 decrease Effects 0.000 description 1
• 230000002542 deteriorative effect Effects 0.000 description 1
• 238000007598 dipping method Methods 0.000 description 1
• 238000002474 experimental method Methods 0.000 description 1
• 239000011210 fiber-reinforced concrete Substances 0.000 description 1
• 239000011888 foil Substances 0.000 description 1
• 230000008595 infiltration Effects 0.000 description 1
• 238000001764 infiltration Methods 0.000 description 1
• 229910052742 iron Inorganic materials 0.000 description 1
• 238000004898 kneading Methods 0.000 description 1
• 239000000203 mixture Substances 0.000 description 1
• 230000003014 reinforcing effect Effects 0.000 description 1
• 239000000243 solution Substances 0.000 description 1
• 238000005507 spraying Methods 0.000 description 1
• 239000006228 supernatant Substances 0.000 description 1
• 230000002195 synergetic effect Effects 0.000 description 1
• 230000001988 toxicity Effects 0.000 description 1
• 231100000419 toxicity Toxicity 0.000 description 1