Corrosion and stress corrosion cracking of steels in seawater and sea sand concrete environment

This study focuses on the electrochemical behavior and stress corrosion cracking (SCC) behavior of mild steels and stainless steels in various concrete environments and the role of silica addition in the corrosion and cracking of steels. Through studies, alkalinity is found to play a vital role in stainless steels corrosion and the chloride is detrimental to mild steel. Silicate addition to an aqueous corrosive environment can cause the formation of ferrosilite or the formation of hydrated calcium silicate gel. Various silicate addition will have different impacts on the corrosion and SCC behaviour of steels.