Composition of corrosion products

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Table of contents

Chapter 1. Introduction
1.1 Backgrounds and significances
1.2 Literatures review
1.2.1 Corrosion morphology of strands
1.2.2 Corrosion-induced concrete cracking
1.2.3 Bond strength degradation of corroded strands
1.2.4 Corrosion-induced prestress loss
1.2.5 Flexural capacity of corroded PC beams
1.3 Discussions of existing researches
1.4 Layout of the dissertation
1.5 Summary
Chapter 2. Concrete Cracking Prediction Including the Filling Proportion of Strand Corrosion Products
2.1 Introduction
2. 2 Experimental program
2.2.1 Specimen details
2.2.2 Accelerated corrosion of the strand
2.2.3 Crack width and corrosion loss measurement
2.3 Experimental results and discussions
2.3.1 Corrosion morphology, cracking propagation, and corrosion loss
2.3.2 Filling of corrosion products in cracks
2.4 Prediction model of crack propagation
2.4.1 Corrosion products at the micro-crack formation
2.4.2 Crack width on the concrete surface
2.4.3 Validation of the prediction model
2.5. Conclusions
Chapter 3 Crack Width Prediction under Combined Prestress and Strand Corrosion . 
3.1 Introduction
3.2 Experimental program
3.2.1 Details of specimens
3.2.2 Accelerated corrosion and corrosion product measurement
3.2.3 Measurement of crack width and corrosion loss
3.3 Experimental results and discussions
3.3.1 Expansion ratio of strand corrosion products
3.3.2 Crack propagation under various prestress
3.4 Prediction of corrosion-induced cracking in PC beams
3.4.1 Model for corrosion-induced cracking
3.4.2 Model validation
3.5 Conclusions
Chapter 4 Prestress Loss Prediction in Pre-tensioned Concrete Structures with Corrosive Cracking
4.1 Introduction
4.2 Model for prestress loss in corroded PT structures
4.2.1 Concrete cracking induced by strand corrosion
4.2.2 Bond degradation due to strand corrosion
4.2.3 Corrosion-induced prestress loss
4.3 Evaluation of effective prestress in corroded PT beams
4.3.1 Specimen details
4.3.2 Accelerated corrosion and corrosion loss measurement
4.3.3 Effective prestress evaluation under various stress levels
4.3.4 Validation on prestress loss model
4.4 Conclusions
Chapter 5 Flexural Capacity Prediction of Corroded PC Beams Incorporating Bond Degradation
5.1 Introduction
5.2 Concept of flexural capacity model
5.3 Bond strength of corroded strand considering flexural cracks
5.3.1 Corrosion-induced cracking and bond degradation
5.3.2 Equivalent bond strength considering flexural cracks
5.4 Calculation procedure of flexural capacity
5.5 Model validation
5.6 Conclusions
Chapter 6 Conclusions and Perspectives
6.1 Conclusions
6.2 Perspectives
References