The passivation and corrosion of metal are significantly affected by its surface state and chemical characteristics. In practical engineering, the reinforcement is with mill scale or rust stains. Its passivation and corrosion are obviously different from the descaled one. This book briefly discusses the pseudo-passivation behavior and corrosion mechanisms of hot-rolled rebars with mill scale and provides the corresponding protection measures, which can be used as a reference for corrosion or civil engineers.

Shows the actual hot-rolled rebars with mill scale in concrete which may not produce the passive film as expected Shows rebar corrosion happens preferentially at the mill scale defects Proves rusty rebar is difficult to be re-passivated and ready to corrode when there is water or aggressive ions

Autorentext

Prof. Xinying Lu received his B.E. and Ph.D. degrees in Surface Science and Corrosion Engineering from University of Science and Technology Beijing, China, in 1988 and 1993, respectively, and did postdoc research in the Department of Materials Science and Engineering, Tsinghua University, Beijing, China, during 1993 to 1995. Then, he joined the Department of Civil Engineering of Tsinghua University.

Prof. Lu focuses on the research of rebar corrosion and concrete durability. His recent research interests include ultra-high-performance concrete, quantum chemical calculations and high-performance composites.

Inhalt
Preface.- Chapter 1 Passivation of iron.- Chapter 2 Determination methods of passivation.- Chapter 3 Passivity of rebars without mill scale.- Chapter 4 Mill scale of hot-rolled rebars.- Chapter 5 Passivation of hot-rolled rebars.- Chapter 6 Redox reactions of hot-rolled rebars.- Chapter 7 Corrosion of hot-rolled rebars.- Chapter 8 Protection of hot-rolled rebars.