The process of corrosion of the reinforcement protected with concrete made of cement containing high calcium fly ash

摘要

Tests on corrosion in the reinforcement protected with concrete made of cement containing high calcium fly ash, which takes place in the chloride environment, are described. The test results were compared to reinforcing steel behaviour in concrete made of ordinary Portland cement under the same conditions. The rate of corrosion processes was determined by the linear polarization method in loaded and cracked reinforced concrete elements, exposed to cyclic wetting in NaCl. The addition of high calcium fly ash to a new type of cement was found not to deteriorate its protective properties to reinforcing steel in concretes made of such a type of cement.