Corrosion of Steel in Concrete: Prevention, Diagnosis, RepairReinforced concrete has been developed and applied extensively in the 20th century .It combines the good compressive strength of concrete with the high tensile strength of steel and has proven to be successful in terms of structural performance and durability. However, there are instances of premature failure of reinforced concrete and prestressed concrete components due to corrosion of the reinforcing steel with very high economic implications of such damage. This book focuses on the chloride and carbonation induced corrosion of steel in concrete, presenting transport mechanisms and electrochemical concepts. Other types of corrosion of steel and degradation of concrete are also treated. The main emphasis lies on design and execution aspects related to durability of new and existing structures. New methods and materials for preventative measures, condition assessment and repair techniques are discussed. This makes this book an invaluable reference for any engineer and materials scientist involved in research and practice of corrosion protection, rehabilitation and maintenance of reinforced concrete structures and components. Owners, designers and contractors will profit by this updated state of the art. |
Contents
Transport Processes in Concrete | 21 |
Degradation of Concrete | 49 |
Part II | 69 |
Chlorideinduced Corrosion | 91 |
Electrochemical Aspects | 109 |
Macrocells | 125 |
Hydrogeninduced Stresscorrosion Cracking | 147 |
3 | 152 |
Corrosion Inhibitors | 217 |
Surface Treatments | 231 |
Corrosionresistant Reinforcement | 249 |
1 | 271 |
Monitoring | 299 |
Part V | 313 |
4 | 324 |
2 | 330 |
Common terms and phrases
aggregate aggressive alkaline Andrade anodic applied areas attack bars Bertolini blast furnace blast furnace slag calcium capillary carbonated concrete cathodic prevention cathodic protection cement paste Chapter chemical chloride content chloride ions chloride penetration chloride threshold coating concrete cover Concrete Structures concrete surface corrosion inhibitors corrosion initiation Corrosion of Reinforcement Corrosion of Steel corrosion rate cracking crete current density decreases depassivation diffusion coefficient drying durability effect electrical resistivity electrochemical electrodes Elsener environment exposure Figure fly ash hydration hydrogen hydrogen embrittlement hydrophobic increase kg/m³ mA/m² macrocell mass of cement measured methods monitoring mortar mV SCE oxygen passive Pedeferri permeability pitting pitting corrosion polarization pore solution Portland cement pozzolanic Proc propagation R. B. Polder reaction realkalisation rebars reduce reinforced concrete reinforced-concrete structures repair material Rilem seawater silica fume stainless steel Steel in Concrete stray current sulfate temperature tests thickness tion values w/c ratio zone