Wang, D;
Yue, Y;
Mi, T;
Yang, S;
McCague, C;
Qian, J;
Bai, Y;
(2020)
Effect of magnesia-to-phosphate ratio on the passivation of mild steel in magnesium potassium phosphate cement.
Corrosion Science
, 174
, Article 108848. 10.1016/j.corsci.2020.108848.
Preview |
Text
The influence of MP ration on the passivation behaviour of mild steel rebar in MKPC paste.pdf - Accepted Version Download (696kB) | Preview |
Abstract
The low pH of magnesium potassium phosphate (MKPC) has raised concerns over its capability to protect reinforcing steel. The passivation of mild steel in MKPC pore solutions was investigated in this study via electrochemical measurements, XPS and Raman spectroscopy. Results show that the passivity of mild steel in MKPC was comparable or even better than that in Portland cement. Although the passivity was dominated by the pH of MKPC, it also increases with increasing magnesium-to-phosphate (M/P) ratios. The formation of iron phosphate in the low pH MKPC (such as M/P 7) also made additional contributions to the passivity of steel.
| Type: | Article |
|---|---|
| Title: | Effect of magnesia-to-phosphate ratio on the passivation of mild steel in magnesium potassium phosphate cement |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.corsci.2020.108848 |
| Publisher version: | https://doi.org/10.1016/j.corsci.2020.108848 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Mild steel, Passivity, PhosphateM/P ratio, XPS, Raman spectroscopy |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10105784 |
Loading...
Loading...Loading...Loading...Archive Staff Only
 |
View Item |
