Corrosion of Steel in Concrete

Corrosion of Steel in Concrete PDF Author: Luca Bertolini
Publisher: John Wiley & Sons
ISBN: 3527651713
Category : Technology & Engineering
Languages : en
Pages : 389

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Book Description
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 PDF Author: Luca Bertolini
Publisher: John Wiley & Sons
ISBN: 3527651713
Category : Technology & Engineering
Languages : en
Pages : 389

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Book Description
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.

Transport Processes in Concrete

Transport Processes in Concrete PDF Author: Robert Cerny
Publisher: CRC Press
ISBN: 9780415242646
Category : Technology & Engineering
Languages : en
Pages : 560

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Book Description
Transport Processes in Concrete presents a comprehensive survey of the physical and chemical processes and transport mechanisms in concrete, and analyses their significance for the movement of heat, moisture and chemical compounds. A critical analysis of the available mathematical models is given, and from this analysis the most suitable models to describe transport processes in concrete are selected. The authors provide an overview of methods for determining field variables and transport and storage parameters, and demonstrate the practical application of computational modelling of transport processes in the design of concrete structures. This book presents a practical methodology for researchers and practitioners in the field of concrete technology and durability.

Water Transport in Brick, Stone and Concrete

Water Transport in Brick, Stone and Concrete PDF Author: Christopher Hall
Publisher: CRC Press
ISBN: 020386221X
Category : Technology & Engineering
Languages : en
Pages : 381

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Book Description
This book provides a unified description of transport processes involving saturated and unsaturated flow in inorganic building materials and structures. It emphasizes fundamental physics and materials science, mathematical description, and experimental measurement as a basis for engineering design and construction practice. Water Transport in Brick

Transport Properties of Concrete

Transport Properties of Concrete PDF Author: Peter A. Claisse
Publisher: Woodhead Publishing
ISBN: 0128226781
Category : Technology & Engineering
Languages : en
Pages : 330

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Book Description
Transport Properties of Concrete: Modelling the Durability of Structures, Second Edition, covers how to measure transport properties and use the results to model performance. The transport properties of concrete and measurements of the ability of ions and fluids to move through the material. These properties largely determine the durability of concrete and of steel embedded within it, as well as the effectiveness of structures such as waste containment barriers. The book provides a comprehensive examination of the subject and will be of use to all concerned with the durability and effectiveness of concrete structures. - Includes a new chapter on modelling the durability of concrete structures showing how both diffusion and pressure driven flow should be included - Covers the problems that occur when carrying out transport tests on concrete incorporating both traditional and newer cement replacements - Shows how properties such as permeabilty which are needed for modelling may be derived from in situ tests on structures

Resistance of Concrete to Chloride Ingress

Resistance of Concrete to Chloride Ingress PDF Author: Luping Tang
Publisher: CRC Press
ISBN: 0203882415
Category : Technology & Engineering
Languages : en
Pages : 260

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Book Description
Chloride ingress in reinforced concrete induces corrosion and consequent spilling and structural weakness, and it occurs world-wide and imposes an enormous cost. Yet it can be resisted by using test methods and relevant models for service life prediction.Resistance of Concrete to Chloride Ingress sets out current understanding of chloride transport

Modelling of Concrete Performance

Modelling of Concrete Performance PDF Author: Rajesh Chaube
Publisher: CRC Press
ISBN: 9780367863845
Category :
Languages : en
Pages : 328

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Book Description
The intial defects induced at early age of concrete hardening: thermal strains, shrinkage, creep and the associated risks of cracking are one of the governing factors for long-term performance of concrete. Proposing a simplified but intergrated scenario of concrete life cycle simulation method, this book examines and explains the vast amount of experimental observations related to hardening concrete using a common set of physical laws. The methods used focus on the three primary processes common to the development of all cementitious materials: hydration, moisture transport and structure formation. The authors describe an intergrated theoretical and computational platform from which to examine and assess the quality and structural durability of concrete at an early age. This represents a new approach to the problem of evaluating durability performance and presents a practical methodology for researchers and practitioners in the field of concrete technology. The proposed scheme may be used in practical computational simulation methods, with the relevant software available on the Internet, and is a valuable guide to those engaged in concrete design.

Fundamentals of Durable Reinforced Concrete

Fundamentals of Durable Reinforced Concrete PDF Author: Mark G. Richardson
Publisher: CRC Press
ISBN: 0203223195
Category : Technology & Engineering
Languages : en
Pages : 273

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Book Description
Durability failures in reinforced concrete structures are wasteful of resources and energy. The introduction to practice of European Standard EN 206-1 represents a significant shift in emphasis on the need to explicitly consider each potential durability threat when specifying and producing concrete. Fundamentals of Durable Reinforced Concrete presents the fundamental aspects of concrete durability including reinforcement corrosion, carbonation, chloride ingress, alkali-aggregate reaction, freeze/thaw damage, sulphate attack, chemical attack, cracking, abrasion and weathering. The background to the durability exposure classes in EN 206-1 is also explained. Future directions in performance-based specifications and mathematical modelling of degradation are presented. This book will be of particular interest to specifiers applying the principles of the new European Standard EN 206-1 for the first time, to postgraduate researchers in mathematical modelling of degradation mechanisms, to undergraduates of engineering, architecture and building technology, and students of advanced concrete technology who require a concise source of reference on concrete durability.

Creep and Hygrothermal Effects in Concrete Structures

Creep and Hygrothermal Effects in Concrete Structures PDF Author: Zdeněk P. Bažant
Publisher: Springer
ISBN: 9402411380
Category : Technology & Engineering
Languages : en
Pages : 960

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Book Description
This comprehensive treatise covers in detail practical methods of analysis as well as advanced mathematical models for structures highly sensitive to creep and shrinkage. Effective computational algorithms for century-long creep effects in structures, moisture diffusion and high temperature effects are presented. The main design codes and recommendations (including RILEM B3 and B4) are critically compared. Statistical uncertainty of century-long predictions is analyzed and its reduction by extrapolation is discussed, with emphasis on updating based on short-time tests and on long-term measurements on existing structures. Testing methods and the statistics of large randomly collected databases are critically appraised and improvements of predictions of multi-decade relaxation of prestressing steel, cyclic creep in bridges, cracking damage, etc., are demonstrated. Important research directions, such as nanomechanical and probabilistic modeling, are identified, and the need for separating the long-lasting autogenous shrinkage of modern concretes from the creep and drying shrinkage data and introducing it into practical prediction models is emphasized. All the results are derived mathematically and justified as much as possible by extensive test data. The theoretical background in linear viscoelasticity with aging is covered in detail. The didactic style makes the book suitable as a textbook. Everything is properly explained, step by step, with a wealth of application examples as well as simple illustrations of the basic phenomena which could alternate as homeworks or exams. The book is of interest to practicing engineers, researchers, educators and graduate students.

Durability Design of Concrete Structures

Durability Design of Concrete Structures PDF Author: Kefei Li
Publisher: John Wiley & Sons
ISBN: 1118910125
Category : Technology & Engineering
Languages : en
Pages : 433

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Book Description
Comprehensive coverage of durability of concrete at both material and structural levels, with design related issues Links two active fields in materials science and structural engineering: the durability processes of concrete materials and design methods of concrete structures Facilitates communication between the two communities, helping to implement life-cycle concepts into future design methods of concrete structures Presents state-of-the-art information on the deterioration mechanism and performance evolution of structural concrete under environmental actions and the design methods for durability of concrete structures Provides efficient support and practical tools for life-cycle oriented structural design which has been widely recognized as a new generation of design philosophy for engineering structures The author has long experience working with the topic and the materials presented have been part of the author's current teaching course of Durability and Assessment of Engineering Structures for graduate students at Tsinghua University The design methods and approaches for durability of concrete structures are developed from newly finished high level research projects and have been employed as recommended provisions in design code including Chinese Code and Eurocode 2

Understanding the Rheology of Concrete

Understanding the Rheology of Concrete PDF Author: N Roussel
Publisher: Elsevier
ISBN: 0857095285
Category : Technology & Engineering
Languages : en
Pages : 379

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Book Description
Estimating, modelling, controlling and monitoring the flow of concrete is a vital part of the construction process, as the properties of concrete before it has set can have a significant impact on performance. This book provides a detailed overview of the rheological behaviour of concrete, including measurement techniques, the impact of mix design, and casting.Part one begins with two introductory chapters dealing with the rheology and rheometry of complex fluids, followed by chapters that examine specific measurement and testing techniques for concrete. The focus of part two is the impact of mix design on the rheological behaviour of concrete, looking at additives including superplasticizers and viscosity agents. Finally, chapters in part three cover topics related to casting, such as thixotropy and formwork pressure.With its distinguished editor and expert team of contributors, Understanding the rheology of concrete is an essential reference for researchers, materials specifiers, architects and designers in any section of the construction industry that makes use of concrete, and will also benefit graduate and undergraduate students of civil engineering, materials and construction. - Provides a detailed overview of the rheological behaviour of concrete, including measurement techniques, casting and the impact of mix design - The estimating, modelling, controlling and monitoring of concrete flow is comprehensively discussed - Chapters examine specific measurement and testing techniques for concrete, the impact of mix design on the rheological behaviour of concrete, particle packaging and viscosity-enhancing admixtures