Reinforcing Steel with increased Corrosion Resistance as a Measure against Chloride induced Corrosion of Reinforced Concrete.

摘要

The effect, on the chloride-induced corrosion initiation time, of using different grades of reinforcing steel in concrete elements is evaluated. The corrosion initiation times were determined numerically for three types of reinforcement for different combinations of concrete cover quality and thickness, and exposure zone. The results show that high performance steel rebars (i. e. steel with improved corrosion resistance, stainless steel) significantly improve the corrosion resistance of concrete elements. Sufficient corrosion protection of steel reinforcement is obtained through a combination of measures regarding the quality of cover concrete and the type of reinforcing steel.