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Self Compacting Concrete / Edition 1
     

Self Compacting Concrete / Edition 1

by Ahmed Loukili
 

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ISBN-10: 1848212909

ISBN-13: 9781848212909

Pub. Date: 08/30/2011

Publisher: Wiley

Self-Compacting Concrete (SCC) is a relatively new building material. Nowadays, its use is progressively changing the method of concrete placement on building sites.
However, the successful use of SCC requires a good understanding of the behavior of this material, which is vastly different from traditional concrete. For this purpose, a lot of research has been

Overview

Self-Compacting Concrete (SCC) is a relatively new building material. Nowadays, its use is progressively changing the method of concrete placement on building sites.
However, the successful use of SCC requires a good understanding of the behavior of this material, which is vastly different from traditional concrete. For this purpose, a lot of research has been conducted on this area all over the world since 10 years.
Intended for both practitioners and scientists, this book provides research results from the rheological behavior of fresh concrete to durability.

Product Details

ISBN-13:
9781848212909
Publisher:
Wiley
Publication date:
08/30/2011
Series:
ISTE Series , #558
Pages:
288
Product dimensions:
6.30(w) x 9.30(h) x 0.80(d)

Table of Contents

Introduction ix

Chapter 1 Design, Rheology and Casting of Self-Compacting Concretes Sofiane Amziane Christophe Lanos Michel Mohret 1

1.1 Towards a fluid concrete 1

1.1.1 Area of application 6

1.2. SCC formulation basics 7

1.2.1 Overview 7

1.2.2. Specificity of SCC formulation 11

1.2.3 Design methods for SCC 17

1.3 SCC rheology 20

1.3.1 Fundamental concepts 20

1.3.2 Rheological characteristics: methods and ranges of measured values 26

1.3.3 Rheology at different scales 35

1.3.4 Evolution in rheology during casting - thixotropy 41

1.4 Industrial practices 42

1.4.1 Determining rheology during mixing and transport 42

1.4.2 Pumping 45

1.5 Forces exerted by SCCs on formworks 50

1.5.1 Important parameters 50

1.5.2 Changes in pressure against a formwork 51

1.5.3 Adapting the casting conditions 55

1.5.4 Modeling pressure 56

1.6 Bibliography 59

Chapter 2 Early Age Behavior Philippe Turcry Ahmed Loukili 67

2.1 Introduction 67

2.2 Hydration and its consequences 68

2.2.1 Hydration 68

2.2.2 Setting 69

2.2.3 Chemical shrinkage and endogenous shrinkage 69

2.2.4 Heat release, thermal contraction and the risk of cracking 70

2.3 Early age desiccation and its consequences: different approaches to the problem 70

2.4 Plastic shrinkage and drop in capillary pressure 74

2.4.1 Analysis of studied phenomena 74

2.5 Comparison of plastic shrinkage for SCCs and conventional concretes 79

2.5.1 Controlled drying 79

2.5.2 Forced drying 83

2.6 Influence of composition on free plastic shrinkage 86

2.6.1 Influence of the paste composition 86

2.6.2 Influence of the paste proportion 88

2.7 Cracking due to early drying 89

2.7.1 Experimental apparatus 89

2.7.2 Comparison of SCCs and conventional concretes 90

2.8 Summary 93

2.9 Bibliography 95

Chapter 3 Mechanical Properties and Delayed Deformations Thierry Vidal Philippe Turcry Stéphanie Staquet Ahmed Loukili 99

3.1 Introduction 99

3.2. Instantaneous mechanical properties 100

3.2.1 Time-evolution of compressive strength 100

3.2.2 Tensile strength 103

3.2.3 Elastic modulus 105

3.3 Differences in mechanical behavior 110

3.3.1 Free shrinkage 111

3.3.2 Restrained shrinkage 117

3.3.3 Evolution and prediction of delayed deformations under loading, creep deformations 119

3.4 Behavior of steel-concrete bonding 122

3.4.1 Anchorage capacity 123

3.4.2 Transfer capacity of reinforcement tensile stress to concrete and cracking 127

3.5 Bibliography 130

Chapter 4 Durability of Self-Compacting Concrete Emmanuel Roziere Abdelhafid Khelidj 141

4.1 Introduction 141

4.2 Properties and parameters that influence durability 143

4.2.1 Mechanical strength 143

4.2.2 Porosity and properties of the porous network 147

4.2.3 Absorption 151

4.3 Transport phenomena 152

4.3.1 Permeability 152

4.3.2 Diffusion 156

4.4 Degradation mechanisms 159

4.4.1 Reinforcement bar corrosion risk 159

4.4.2 Aggressive water 173

4.5 Conclusion 202

4.6 Bibliography 203

Chapter 5 High Temperature Behavior of Self-Compacting Concretes Hana Fakes Sébastien Remond Albert Noumowé Geert De Schutter 215

5.1 Introduction 215

5.2 Changes in SCC microstructure and physico-chemical properties with temperature 216

5.2.1 Physico-chemical properties 216

5.3 Mechanical behavior of SCCs at high temperature 240

5.3.1 Changes in compressive strength 240

5.3.2 Elastic modulus 246

5.4 Thermal stability 247

5.5 Conclusion 252

5.6 Bibliography 253

Glossary 259

List of Authors 261

Index 263

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