C - Chemistry – Metallurgy – 23 – F
Patent
C - Chemistry, Metallurgy
23
F
25/110, 31/41
C23F 11/10 (2006.01) C04B 41/46 (2006.01) C04B 41/52 (2006.01) C04B 41/62 (2006.01) C09D 5/08 (2006.01)
Patent
CA 2271529
The present invention provides methods and compositions for the reduction of the corrosion rate of already corroding steel reinforcements embedded in a hardened concrete structure as well as for the protective corrosion inhibition of uncorroded steel reinforcements embedded in a hardened concrete structure exposed to aggressive environments. The inventive new compositions employed for the novel method are essentially based on one or more amino- and/or hydroxyalkylamino compound(s), which are partially or completely neutralized with one or more inorganic acids) and/or derivatives thereof and/or aliphatic carboxylic- and/or aromatic carboxylic acid(s), one or more surfactants) and one or more water-based or water-thinnable water repellent agent(s) selected from the group of organoslllcones.
Burge Theodor A.
Mader Urs
Marazzani Beat
Osler Hoskin & Harcourt Llp
Sika Ag Vorm. Kaspar Winkler & Co.
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