Einfach lieben

Hausmann, Albrecht

doi:10.1007/978-3-476-04357-3_3

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been reported that the pH of the testing solution has a significant influence on the corrosion potential ( E corr ) of steel and plays a dominating role for breakdown of the passivity of the steel . In this research, the effect of three MHTs (i.e., Mg(2)AlNO 2 , Mg(2)AlpAB, Mg(2)Al11AUA) on pH of the alkaline solution including the possible carbonation by the airborne CO 2 was investigated under the designated testing condition (i.e., aerated alkaline stagnant solutions).…”

Section: Resultsmentioning

confidence: 99%

Modified hydrotalcites for improved corrosion protection of reinforcing steel in concrete – preparation, characterization, and assessment in alkaline chloride solution

Yang

Fischer²,

Cerezo

et al. 2015

Materials & Corrosion

View full text Add to dashboard Cite

Six Mg-Al hydrotalcites (Mg/Al ¼ 2 and 3) were synthesized through the modification of two carbonate hydrotalcites (i.e., Mg(2)Al-CO 3 and Mg(3)Al-CO 3 ) by two amino acids (11-aminoundecanoic acid and p-aminobenzoic acid) and sodium nitrite. They were characterized by means of XRD, FTIR, TG/DSC, and elemental analysis. The ion exchange of the modified hydrotalcites (MHTs) were investigated in alkaline chloride solution and the results showed that ion exchange occurred between free chloride ions and the intercalated inhibitive anions in MHT.The corrosion inhibition of three MHTs (Mg/Al ¼ 2) was evaluated based on the open circuit potential and linear polarization resistance evolution of steel coupons in 0.1 M NaOH solution stepwise enriched with chlorides and the results showed that MHT, in particular, Mg(2)Al-pAB exhibited an improved corrosion inhibiting effect in terms of a higher chloride threshold compared to its constituent free inhibitor ions (i.e., pAB). This study confirms the dual protection that MHT, in particular, Mg(2)Al-pAB, offers to the steel: capturing chlorides and simultaneously releasing the intercalated inhibitors to further protect the steel from corrosion.

show abstract

Section: Resultsmentioning

confidence: 99%