ABSTRACT
After damage due to reinforcement corrosion in carbonated concrete, repair principle W - limiting the water content of concrete - as specified in the Guidelines for Repair and Protection of Concrete Components issued by the German Committee on Reinforced Concrete [1], can be applied in the repair of concrete components. The repair principle involves sealing the concrete surface with a suitable surface protection system after exchanging and reprofiling the damaged concrete areas. As a result the water content in the concrete shall be reduced to such an extent as to bring the corrosion process at the reinforcement to a standstill. The effectiveness of surface coatings as corrosion protection systems has been investigated on carbonated concrete specimens via the simultaneous measurement of corrosion rates and electrolytic concrete resistivity.
