钢筋锈蚀引起的混凝土开裂 本书特色
Steel Corrosion-Induced Concrete Cracking presents the results of the authors' research into the origins,mechanisms, and the development of steel corrosion-induced cracking iconcrete. The book fills aimportant gap ithe literature by providing comprehensive analysis of the concrete cracking process that is specificallycaused by steel corrosion.
Steel Corrosion-Induced Concrete Cracking enables industry engineers and researchers ithe field of concretestructures and durability to improve the serviceability limit state of the structures they desigby enablingthem: to identify the mechanisms of deterioration/steel corrosion; to more accurately calculate the lifecycle ofreinforced concrete; to mitigate cracking and spalling; and to identify and theavoid practices which lead toearly corrosion-induced cracking, and/or accelerate the propagatioof cracks.
钢筋锈蚀引起的混凝土开裂 内容简介
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钢筋锈蚀引起的混凝土开裂 目录
Foreword
Preface
Acknowledgments
List of Figures
List of Tables
1. Introduction
1.1 Background
1.2 Empirical Models
1.2.1 Critical Steel Corrosioat Surface Cracking
1.2.2 Crack Width at the Concrete Surface
1.2.3 Discussioothe Empirical Models
1.3 Analytical Models
1.3.1 Three-Stage Corrosion-lnduced Cracking Model
1.3.2 CorrosioProducts Filling Stage
1.3.3 Concrete Cover Stressing and Cracking
1.3.4 Rust Filling iCorrosion-lnduced Cracks
1.4 Contents of This Book
References
2.Steel CorrosioiConcrete
2.1 Introduction
2.2 Mechanisms of Steel CorrosioiConcrete
2.2.1 CorrosioProcess
2.2.2 CorrosioRate
2.2.3 Passivation
2.3 Steel CorrosioInduced by Carbonatioor Chloride Attack
2.3.1 Carbonation-Induced Corrosion
2.3.2 Chloride-Induced Corrosion
2.4 CorrosioProducts
2.5 Steel Corrosion-Induced Concrete Damage
2.6 Conclusions
References
3.The ExpansioCoefficients and Modulus of Steel CorrosioProducts
3.1 Introduction
3.2 ExpansioCoefficient of Steel CorrosioProducts
3.2.1 Experimental Program
3.2.2 Tested Results
3.2.3 Compositioof Rust Samples
3.2.4 ExpansioCoefficient of Rust Samples
3.3 Modulus of Steel CorrosioProducts iConcrete
3.3.1 Experimental Program
3.3.2 Loading and Unloading Stress-StraiCurve
3.3.3 Tested Data of Cyclic Low-CompressioTest
3.3.4 Modulus of Rust
3.4 Conclusions
References
4.Damage Analysis and Cracking Model of Reinforced Concrete Structures with Rebar Corrosion
4.1 Introduction
4.2 Basic Concrete Cracking Model Due to Steel Corrosion
4.3 Noncracking Stage of Corrosion-Induced Concrete Cracking Process Cracking Process
4.4.1 Intact Part
4.4.2 Cracked Part
4.5 Corrosion-Induced Expansive Pressure
4.5.1 RelatioBetweeExpansive Pressure and Steel Corrosion
4.5.2 Variatioof Expansive Pressure
4.5.3 Effect of Concrete Cover Thickness
4.5.4 Effect of Steel Bar Diameter
4.5.5 Effect of Concrete Quality
4.6 Discussioothe Radial Loss of Steel Bar
4.6.1 Steel Loss Varying with the Crack Length
4.6.2 Effect of Concrete Cover Thickness
4.6.3 Effect of Steel Bar Diameter
4.6.4 Effect of Rust ExpansioCoefficient
4.6.5 Effect of Concrete Quality
4.7 Conclusions
References
5.Mill Scale and CorrosioLayer at Concrete Surface Cracking
5.1 Introduction
5.2 Experimental Program
5.2.1 Reinforced Concrete Specimens
5.2.2 Accelerated Steel Corrosion
5.2.3 Sample Preparation
5.2.4 Observatioand Measurement
5.3 Rust Distributions ithe Cracking Sample
5.4 Mill Scale
5.5 CorrosioLayer Thickness at Surface Cracking of Concrete Cover
5.5.1 At Outer Surface Cracking
5.5.2 At Inner Surface Cracking
5.6 Conclusions
References
6. Rust DistributioiCorrosion-Induced Cracking Concrete
6.1 Introduction
6.2 Experimental Program
6.2.1 Reinforced Concrete Specimen
6.2.2 Curing and Exposure History
6.2.3 Sample Preparation
6.2.4 Observatioand Measurements
6.3 Rust Distributions at the Steel-Concrete Interfaces
6.4 Distributioof the CorrosioProducts-Filled Paste
6.5 Rust DistributioiCorrosion-Induced Cracks
6.5.1 Rust DistributioiCracks by Digital Microscope
6.5.2 Rust Filling iCracks by SEM
6.5.3 Discussioof Rust Filling Corrosion-Induced Cracks
6.6 Rust Development iConcrete Cracks
6.7 Conclusions
References
7. Nonuniform Distributioof Rust Layer Around Steel Bar iConcrete
7.1 Introduction
7.2 Steel Corrosioand Corrosion-Induced Cracks
7.3 GaussiaModel to Describe the Nonuniform Rust Layer
7.4 Comparing the Proposed GaussiaModel With Other Models
7.5 Parameters iGaussiaModel
7.5.1 λ3: Uniform Coefficient of the Rust Layer
7.5.2 λ1: Nonuniform Coefficient of the Rust Layer
7.5.3 λ2: Spread Coefficient of Rust Layer
7.5.4 Relationships Among Parameters Before Concrete Surface Cracking
7.6 Conclusions
References
8. Crack Shape of Corrosion-Induced Cracking ithe Concrete Cover
8.1 Introduction
8.2 Experimental Program
8.2.1 Reinforced Concrete Specimens
8.2.2 Accelerated CorrosioHistory
8.2.3 Sample Preparation
8.2.4 Observatioand Measurement
8.3 Crack Shape
8.3.1 Crack Width Model
8.3.2 a1: Crack Width VariatioCoefficient
8.3.3 a2: Crack Width Coefficient at the Surface of the Steel Bar
8.4 Crack Width and CorrosioLayer Thickness
8.4.1 Relationship BetweeCrack Width, Wi, and CorrosioLayer Thickness, TCL
8.4.2 Wc: Critical Crack Width at Concrete Outer Surface Cracking
8.4.3 Ws: Crack Width othe Surface of Concrete Cover
8.5 Relationship of CorrosioLayer Thickness TcL and Crack Width VariatioCoefficient a1
8.6 Crack Shape iDifferent Types of Concrete
8.7 Conclusions
References
9. Development of CorrosioProducts-Filled Paste at the Steel-Concrete Interface
9.1 Introduction
9.2 Influence of Cracks oCP Thickness
9.3 RelatioBetweeTcp and TCL Excluding the Effect of Inner Cracks
9.4 RelatioBetweeTcp and TCL Including the Inner Cracks
9.5 Conclusions
References
10. Steel Corrosion-Induced Concrete Cracking Model
10.1 Introduction
10.2 Corrosion-Induced Concrete Surface Cracking Model Considering CP
10.2.1 Cracking Process Description
10.2.2 Tcp-TCL Model
10.2.3 Nominal Ratio Betweethe CorrosioProducts Volume and the Basic Steel Volume
10.3 Time From CorrosioInitiatioto Concrete Surface Cracking
10.3.1 Faraday's Law
10.3.2 CorrosioRate
10.4 Discussioof Nonuniform CorrosioSituation
10.5 Discussioof Influence of Loading othe Cracking Model
10.5.1 Force Contributed by the Mechanical Interlocking
10.5.2 Intersecting Cracks and Localized Corrosion
10.6 Conclusions
References
Notations
Index