Improvement of intelligent corrosivity-detection and corrosion-protection for reinforcing steel

A series of Mg-Al alloys were fabricated by means of magnetron-sputtering, aiming to improve the intelligence of Mg as a smart concrete corrosivity-detector and corrosion-protector. The effect of Al alloying on Mg dissolution in a simulated concrete pore solution (SCPS) without and with Cl- contamination was systematically investigated. The results showed that proper Al alloying could significantly enhance the intelligence of Mg in corrosivity-detection and corrosion-protection by reducing the self-dissolution, avoiding the over-protection, sensitively probing increased corrosivity, and effectively protect the steel activated by chlorides.

Automated summary

Proper Al alloying can significantly enhance the intelligence of Mg in corrosion detection and protection by reducing self-dissolution, avoiding over-protection, sensitively probing increased corrosivity, and effectively protecting steel activated by chlorides.