Process for corrosion protection of steel reinforcement in reinforced concrete and reinforced concrete having improved corrosion resistance

摘要

"Process for corrosion protection of steel reinforcement in reinforced concrete and reinforced concrete having improved corrosion resistance.The invention provides a reinforced concrete with resistance to corrosion, where the content of spaces in the concrete on the surface of reinforcing steel is below 0.8%, preferably below 0.5%.More preferably less than 0.2% by area of steel and in which there is a layer of solid alkali, preferably of at least one micron thickness on the surface of the steel.The reinforced concrete preferably has a threshold level of chlorine of at least 0,5% preferably at least 0.8% by weight of cement.The invention also provides a procedure to reduce the corrosion of steel reinforcement in concrete.That includes the formation of a reinforced concrete in which the spaces on the surface of the steel is less than 0.5% by volume, and where there is a layer of solid alkali in the surface of the steel.The layer having at least one micron in thickness and coating at least 20% of the surface of the steel.