Service Life and Durability of Reinforced Concrete Structures

Service Life and Durability of Reinforced Concrete Structures PDF Author: Carmen Andrade
Publisher: Springer
ISBN: 9783030079697
Category : Technology & Engineering
Languages : en
Pages : 0

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Book Description
This volume contains the proceedings of the 8th International PhD Student Workshop on Service Life and Durability of Reinforced Concrete Structures that was held in Marne-la-Vallée, France, on September the 26th and 27th 2016. Topics discussed in the book are related to durability performance of reinforced concrete, service life modelling, prevention, protection and repair. Reinforced concrete structures may prove to be very durable, however, their gradual degradation over time impairing both serviceability and structural safety is still a matter of great practical concern in view of the large economic consequences for assessment, maintenance and repair. Corrosion of steel reinforcement is considered to be the most detrimental process responsible for structural deterioration. Many studies are in progress to develop a comprehensive engineering approach for assessment of the initiation and the propagation period of corrosion in both uncracked and cracked concrete. Modelling of chloride penetration and carbonation has attracted a great deal of attention in recent years, however, there is still much debate on several essential aspects such as the chloride threshold level. ASR, and acid, sulphate and frost attack and other mechanisms remain important areas of study. In addition, the interaction between different degradation mechanisms requires further understanding. The worskhop was organised under the auspices of RILEM EAC (Educational Activities Committee), with the aim to bring together young researchers in the field of durability of concrete.

Service Life and Durability of Reinforced Concrete Structures

Service Life and Durability of Reinforced Concrete Structures PDF Author: Carmen Andrade
Publisher: Springer
ISBN: 9783030079697
Category : Technology & Engineering
Languages : en
Pages : 0

Get Book Here

Book Description
This volume contains the proceedings of the 8th International PhD Student Workshop on Service Life and Durability of Reinforced Concrete Structures that was held in Marne-la-Vallée, France, on September the 26th and 27th 2016. Topics discussed in the book are related to durability performance of reinforced concrete, service life modelling, prevention, protection and repair. Reinforced concrete structures may prove to be very durable, however, their gradual degradation over time impairing both serviceability and structural safety is still a matter of great practical concern in view of the large economic consequences for assessment, maintenance and repair. Corrosion of steel reinforcement is considered to be the most detrimental process responsible for structural deterioration. Many studies are in progress to develop a comprehensive engineering approach for assessment of the initiation and the propagation period of corrosion in both uncracked and cracked concrete. Modelling of chloride penetration and carbonation has attracted a great deal of attention in recent years, however, there is still much debate on several essential aspects such as the chloride threshold level. ASR, and acid, sulphate and frost attack and other mechanisms remain important areas of study. In addition, the interaction between different degradation mechanisms requires further understanding. The worskhop was organised under the auspices of RILEM EAC (Educational Activities Committee), with the aim to bring together young researchers in the field of durability of concrete.

Concrete Permeability and Durability Performance

Concrete Permeability and Durability Performance PDF Author: Roberto J. Torrent
Publisher: CRC Press
ISBN: 0429012918
Category : Technology & Engineering
Languages : en
Pages : 536

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Book Description
Durability and service life design of concrete constructions have considerable socio-economic and environmental consequences, in which the permeability of concrete to aggressive intruders plays a vital role. Concrete Permeability and Durability Performance provides deep insight into the permeability of concrete, moving from theory to practice, and presents over 20 real cases, such as Tokyo’s Museum of Western Art, Port of Miami Tunnel and Hong Kong-Zhuhai-Macao sea-link, including field tests in the Antarctic and Atacama Desert. It stresses the importance of site testing for a realistic durability assessment and details the "Torrent Method" for non-destructive measurement of air-permeability. It also delivers answers for some vexing questions: Should the coefficient of permeability be expressed in m2 or m/s? How to get a "mean" pore radius of concrete from gas-permeability tests? Why should permeability preferably be measured on site? How can service life of reinforced concrete structures be predicted by site testing of gas-permeability and cover thickness? Practitioners will find stimulating examples on how to predict the coming service life of new structures and the remaining life of existing structures, based on site testing of air-permeability and cover thickness. Researchers will value theoretical principles, testing methods, as well as how test results reflect the influence of concrete mix composition and processing.

Model Code for Service Life Design

Model Code for Service Life Design PDF Author: fib Fédération internationale du béton
Publisher: fib Fédération internationale du béton
ISBN: 9782883940741
Category : Technology & Engineering
Languages : en
Pages : 128

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Book Description
fib Bulletin 34 addresses Service Life Design (SLD) for plain concrete, reinforced concrete and pre-stressed concrete structures, with a special focus on design provisions for managing the adverse effects of degradation. Its objective is to identify agreed durability related models and to prepare the framework for standardization of performance based design approaches. Four different options for SLD are given: - a full probabilistic approach, - a semi probabilistic approach (partial factor design), - deemed to satisfy rules, - avoidance of deterioration. The service life design approaches described in this document may be applied for the design of new structures, for updating the service life design if the structure exists and real material properties and/or the interaction of environment and structure can be measured (real concrete covers, carbonation depths), and for calculating residual service life. The bulletin is divided into five chapters: 1. General 2. Basis of design 3. Verification of Service Life Design 4. Execution and its quality management 5. Maintenance and condition control It also includes four informative annexes, which give background information and examples of procedures and deterioration models for the application in SLD. The format of Bulletin 34 follows the CEB-FIP tradition for Model Codes: the main provisions are given on the right-hand side of the page, and on the left-hand side, the comments. Note: An Italian translation of Bulletin 34 is also available; contact us for further details.

Durability of Concrete and Cement Composites

Durability of Concrete and Cement Composites PDF Author: Chris L. Page
Publisher: Elsevier
ISBN: 1845693396
Category : Technology & Engineering
Languages : en
Pages : 415

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Book Description
Whilst most structures made using concrete and cement-based composites have not shown signs of premature degradation, there have been notable exceptions. In addition, there is increasing pressure for new structures to remain in serviceable condition for long periods with only minimal maintenance before being recycled. All these factors have highlighted the issues of what affects the durability of these materials in different circumstances and how material properties can be measured and improved. Durability of concrete and cement composites summarises key research on these important topics.After an introductory chapter, the book reviews the pore structure and chemistry of cement-based materials, providing the foundation for understanding the particular aspects of degradation which are discussed in the following chapters. These include dimensional stability and cracking processes, chemical and microbiological degradation of concrete, corrosion of reinforcing and prestressing steels, deterioration associated with certain aggregates, effects of frost and problems involving fibre-reinforced and polymer-cement composites.With its distinguished international team of contributors, Durability of concrete and cement composites is a standard reference for all those concerned with improving the service life of structures using these materials. - Analyses a range of materials such as reinforced steel in concrete, pre-stressed concrete and cement composites - Discusses key degradation phenomena such as cracking processes and the impact of cold weather conditions - A standard reference for those concerned with improving the service life of structures using concrete and cement based composites

Concrete Durability

Concrete Durability PDF Author: Thomas Dyer
Publisher: CRC Press
ISBN: 0203862112
Category : Technology & Engineering
Languages : en
Pages : 420

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Book Description
Written specifically for the young professional and addressing a growing need for a long service life with minimal maintenance, Concrete Durability takes a whole new look at the whole-life performance of structures. This text examines physical and chemical issues that can threaten the durability of concrete. It explores available options for achiev

Corrosion in Reinforced Concrete Structures

Corrosion in Reinforced Concrete Structures PDF Author: H Böhni
Publisher: Elsevier
ISBN: 1845690435
Category : Technology & Engineering
Languages : en
Pages : 263

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Book Description
Reinforced concrete has the potential to be very durable and capable of withstanding a variety of adverse environmental conditions. However, failures in the structures do still occur as a result of premature reinforcement corrosion. In this authoritative book the fundamental aspects of this complex process are analysed; focusing on corrosion of the reinforcing steel, and looking particularly, at new scientific and technological developments.Monitoring techniques, including the newly developed online-monitoring, are examined, as well as the numerical methods used to simulate corrosion and perform parameter studies. The influence of composition and microstructure of concrete on corrosion behaviour is explored. The second half of the book, which deals with corrosion prevention methods, starts with a discussion on stainless steels as reinforcement materials. There are comprehensive reviews of the use of surface treatments and coatings, of the application of corrosion inhibitors and of the application of electrochemical techniques. In each case the necessary scientific fundamentals are explained and practical instances of use are looked at. This is an invaluable guide for engineers, materials scientists and researchers in the field of structural concrete. - Fundamental aspects of corrosion in concrete are analysed in detail - Explores how to minimise the effects of corrosion in concrete - Invaluable guide for engineers, materials scientists and researchers in the field of structural concrete

Durability of Engineering Structures

Durability of Engineering Structures PDF Author: J Bijen
Publisher: Elsevier
ISBN: 1855738562
Category : Technology & Engineering
Languages : en
Pages : 277

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Book Description
Civil engineering failures currently amount to 5 to 10 % of the total investment in new buildings and structures. These failures not only represent important cost considerations, they also have an environmental burden associated with them. Structures often deteriorate because not enough attention is given during the design stage and most standards for structural design do not cover design for service life. Designing for durability is often left to the structural designer or architect who may not have the necessary skills, and the result is all too often failure, incurring high maintenance and repair costs. Knowledge of the long-term behaviour of materials, building components and structures is the basis for avoiding these failures.Durability of engineering structures uses on the design of buildings for service life, effective maintenance and repair techniques in order to reduce the likelihood of failure. It describes the in situ performance of all the major man-made materials used in civil engineering construction - metals (steel and aluminium), concrete and wood. In addition some relatively new high-performance materials are discussed - high-performance concrete, high-performance steel and fibre-reinforced polymers (FRP). Deterioration mechanisms and the measures to counteract these, as well as subsequent maintenance and repair techniques are also considered and the latest standards on durability and repair are explained.Strategies for durability, maintenance and repair, including life cycle costing and environmental life cycle assessment methods are discussed. Finally practical case studies show how repairs can be made and the best ways of ensuring long term durability. This book is aimed at students in civil engineering, engineers, architects, contractors, plant managers, maintenance managers and inspection engineers. - Explains the reasons why structures often deteriorate before they should because of poor design - Shows how to design structures effectively for service life - Considers durability characteristics of standard and high performance construction materials

Durability of Concrete

Durability of Concrete PDF Author: Mark Alexander
Publisher: CRC Press
ISBN: 1351644696
Category : Technology & Engineering
Languages : en
Pages : 339

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Book Description
This book provides an up-to-date survey of durability issues, with a particular focus on specification and design, and how to achieve durability in actual concrete construction. It is aimed at the practising engineer, but is also a valuable resource for graduate-level programs in universities. Along with background to current philosophies it gathers together in one useful reference a summary of current knowledge on concrete durability, includes information on modern concrete materials, and shows how these materials can be combined to produce durable concrete. The approach is consistent with the increasing focus on sustainability that is being addressed by the concrete industry, with the current emphasis on ‘design for durability’.

Construction Materials and Structures

Construction Materials and Structures PDF Author: S.O. Ekolu
Publisher: IOS Press
ISBN: 1614994668
Category : Technology & Engineering
Languages : en
Pages : 1562

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Book Description
The two volumes of these Proceedings contain about 200 conference papers and 10 keynote papers presented at the First International Conference on Construction Materials and Structures, held in Johannesburg, South Africa from 24 to 26 November 2014. It includes sections on Materials and characterization; Durability of construction materials; Structural implications, performance, service life; Sustainability, waste utilization, the environment; and Building science and construction.

Design of Durable Concrete Structures

Design of Durable Concrete Structures PDF Author: Stuart Matthews
Publisher: Bre Press
ISBN: 9781848061750
Category : Concrete construction
Languages : en
Pages : 0

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Book Description
Provides understanding of the complex phenomena governing durability and long-term performance of concrete structures, as a basis for service-life design, focusing on the behaviour of the structure and its interaction with its environment.