RECENT DEVELOPMENT OF NEW TECHNOLOGIES FOR PREPARATION AND ANTI-CORROSION OF REINFORCED CONCRETE

Recent development of high-strength concrete enables high-rise buildings being constructed by concrete instead of steel. A kind of new concrete, that does not need vibration consolidation, a necessary technique in traditional construction, has been developed. During such development of concrete technologies in the past 20 years, some quality problems such as cracking of concrete, corrosion of steel reinforcements and alkali-aggregate reaction have been met. In this paper, those problems of concrete engineering are discussed and corrosion protection technology for prolonging the life time of concrete structures is introduced.