Corrosion of Steel in Concrete

Corrosion of Steel in Concrete
Author: Luca Bertolini
Publisher: John Wiley & Sons
Total Pages: 389
Release: 2013-02-26
Genre: Technology & Engineering
ISBN: 3527651713

Steel-reinforced concrete is used ubiquitously as a building material due to its unique combination of the high compressive strength of concrete and the high tensile strength of steel. Therefore, reinforced concrete is an ideal composite material that is used for a wide range of applications in structural engineering such as buildings, bridges, tunnels, harbor quays, foundations, tanks and pipes. To ensure durability of these structures, however, measures must be taken to prevent, diagnose and, if necessary, repair damage to the material especially due to corrosion of the steel reinforcement. The book examines the different aspects of corrosion of steel in concrete, starting from basic and essential mechanisms of the phenomenon, moving up to practical consequences for designers, contractors and owners both for new and existing reinforced and prestressed concrete structures. It covers general aspects of corrosion and protection of reinforcement, forms of attack in the presence of carbonation and chlorides, problems of hydrogen embrittlement as well as techniques of diagnosis, monitoring and repair. This second edition updates the contents with recent findings on the different topics considered and bibliographic references, with particular attention to recent European standards. This book is a self-contained treatment for civil and construction engineers, material scientists, advanced students and architects concerned with the design and maintenance of reinforced concrete structures. Readers will benefit from the knowledge, tools, and methods needed to understand corrosion in reinforced concrete and how to prevent it or keep it within acceptable limits.

Corrosion of Steel in Concrete

Corrosion of Steel in Concrete
Author: John P. Broomfield
Publisher: CRC Press
Total Pages: 305
Release: 2023-01-31
Genre: Technology & Engineering
ISBN: 1000822486

Corrosion of Steel in Concrete: Understanding, Investigation and Repair is a guide for designing, constructing and maintaining reinforced concrete structures, such as buildings and bridges which are subject to reinforcement corrosion. It presents the basics of theory and practice in steel corrosion in concrete and reviews the latest research and developments, such as progress on measuring the corrosion threshold for chloride-induced corrosion. This third edition compares the currently proliferating major national and international standards and guidance documents. New developments are considered, such as hybrid anodes for electrochemical treatment and the latest research and developments in assessment, such as the use of ground penetrating radar to measure the chloride content of the concrete cover. It overhauls coverage of electrochemical repair and rehabilitation techniques and outlines recent innovations in structural repair and construction and investigates their implications for durability. The book is ideal for practitioners and graduate students in structural engineering and concrete technology.

Corrosion of Steel in Concrete

Corrosion of Steel in Concrete
Author: J.P. Broomfield
Publisher: CRC Press
Total Pages: 263
Release: 1996-12-12
Genre: Architecture
ISBN: 0203475283

The corrosion of reinforcing steel in concrete is a major problem facing civil engineers and surveyors throughout the world today. There will always be a need to build stuctures in corrosive environments and it is therefore essential to address the problems that result. Corrosion of Steel in Concrete provides information on corrosion of steel in at

Concrete Recycling

Concrete Recycling
Author: Francois de Larrard
Publisher: CRC Press
Total Pages: 636
Release: 2019-03-04
Genre: Technology & Engineering
ISBN: 1351052810

François de Larrard is Scientific Director of the R&D centre of the LafargeHolcim group and Scientific Director of the French national project Recybéton. He formerly spent almost thirty years at IFSTTAR (formerly LCPC). He has been granted both the Robert l'Hermite medal and the G.H. Tattersall award by RILEM, and is author of two books, including Concrete Mixture-Proportioning which is also published by Taylor & Francis.

Adhesion Problems in the Recycling of Concrete

Adhesion Problems in the Recycling of Concrete
Author: Pieter C. Kreijger
Publisher: Springer Science & Business Media
Total Pages: 396
Release: 2013-03-09
Genre: Technology & Engineering
ISBN: 1461583128

The building explosion during the years 1945-1960 will inevitably lead to increased demolition in the next decades since the lifetime distribution of structures no longer fulfills its functional social requirements in an acceptable way. In the building period mentioned there was a great increase in reinforced and prestressed concrete construction. Consequently there is now more and more concrete to be demolished. Increasingly severe demands will be made upon demolition technology, including the demand for human- and environment-friendly techniques. On the other hand, the possibility of disposing of debris by dumping is steadily diminishing, especially close to major cities and generally in countries with a high population density. At the same time in such countries and in such urban areas a shortage of aggregates for making concrete will develop as a result of restrictions on aggregate working because of its effect on the environment and because of the unavailability of aggregate deposits due to urban development. From the foregoing it follows that recycling and re-use of environment- and human-friendly demolished and fragmented building rubble should be considered. The translation of this general problem into terms of materials science is possible by forming clear ideas of adhesion and cohesion: the whole process of demolition, fragmentation, and recycling or re-use of concrete is to break the bonding forces between atoms and molecules and to form new bonds across the interfaces of various particles of either the same nature or a different nature.

Concrete Corrosion and Concrete Protection

Concrete Corrosion and Concrete Protection
Author: Imre Biczók
Publisher:
Total Pages: 556
Release: 1967
Genre: Technology & Engineering
ISBN:

Contents - Preface to the English edition - Preface to the German edition - Introduction - CHAPTER I. - The basic materials of concrete - A) Cements and their resistance to corrosion - 1. The composition of cements - 2. The hydration of cement - 3. The resistance of various cements to chemical attack - B) Aggregates - 1. Sand - 2. Gravel - 3. Crushed stone - 4. Blast-furnace slag - 5. Coal slag - 6. Other aggregates - 7. Conclusion - C) Mixing water - CHAPTER II. - Groundwater - A) Engineering hydrology - 1. Determination of the highest groundwater table - 2. Determination of variations in the highest groundwater table - 3. Groundwater flow - 4. Hydrochemical groundwater maps - B) Groundwater sampling - C) Soil sampling - D) The reliability of analytical data of groundwater and soil samples - E) Investigation of groundwater and soil properties - CHAPTER III. - The corrosion and protection of concrete - A) The investigation of concrete corrosion - 1. Corrosion research 2. Rapid methods of corrosion testing - 3. The performance of corrosion tests - 4. Summary - B) General aspects of corrosion - C) Leaching corrosion of concrete due to soft water - 1. The hardness of water and its effect - 2. The effects of soft river water and groundwater in motion - 3. Effects of soft water seeping under pressure - 4. The effect of warm soft water - 5. The effect of cement type - 6. The effect of concrete density - 7. Effect of the concrete surface - 8. Dimensions and age of concrete - 9. Protective measures against the leaching action of water - D) Concrete corrosion due to attacking compounds - CHAPTER IV. Factors increasing or reducing corrosion - A) Corrosion of concrete due to flowing groundwater - B) The corrosive effect of warm groundwater - C) Corrosion due to fluctuations of the groundwater table - D) Corrosion in the range of evaporation - E) Thin-walled concrete objects, concrete canals, piles etc - 1. Cases of corrosion - 2. Protective measures - F) The effect of air oxidation - G) Microbiological corrosion (caused by sulphur bacteria) - 1. Sulphate-forming bacteria - 2. Sulphate-reducing bacteria - 3. Attempt at bacterial protection of concrete - 4. Iron organisms - CHAPTER V. Detailed discussion of protective measures against corrosive effects - A) Passive protective measures - 1. Selection of the suitable concrete mix and method of placement - 2. Surface treatments - 3. Other methods of protection - 4. Perfect sealing (waterproofing) - B) Active protective measures - 1. Exclusion of aggressive water - 2. Neutralization of aggressive water by chemical and biological methods - C) Repair of damaged concrete - Conclusion - Bibliography - Index -