Research Article

Evaluation of Corrosion Resistance of Corrosion Inhibitors for Concrete Structures by Electrochemical Testing in Saturated Ca(OH)2 Solutions with NaCl and Na2SO4

Table 1

Physical properties of corrosion inhibitors.

Corrosion inhibitorValue
Specific gravitypHViscosity (cP)Solid content (wt.%)

Lithium nitrite (LiNO2)1.05212.848.075.0
Diethanolamine (HN(CH2CH2OH)2)1.09712.2110.090.0
Methyl diethanolamine (C₅H₁₃NO₂)1.03811.2611.090.0
4-Aminobutyric acid (H2N(CH2)3COOH)1.1107.999.080.0