
Probabilistic service life model of RC structures subjected to the combined effect of chloride-induced corrosion and cyclic loading
By Emilio Bastidas ArteagaLength6h 31m
About this audiobook
One of the advantages of reinforced concrete (RC) structures is its durability. However, when they are exposed to aggressive environments (e.g., chloride penetration) and cyclic loading, its performance can be significantly affected. Modeling deterioration produced by chloride penetration is useful to ensure optimal levels of serviceability and safety. The main purpose of this book is to propose a new model for lifetime assessment of RC structures subjected to deterioration produced by the combined action of corrosion and fatigue. The formulation of the model is based on a state of the art review on modeling of this kind of deterioration. Furthermore, taking into account the importance of the uncertainty related to the whole deterioration process, this book also presents a stochastic framework for this problem. Finally, several practical examples illustrate the effects of the corrosion-fatigue process in the reduction of life-cycle of RC structures.
Audiobook details
GenreScience and Nature
Length6 hrs 31 mins
Narrated byListen with 1,000+ voices
FormateBook with Audio
Publish dateJan 1, 2010
LanguageEnglish
Table of contents
1PUBLICACIONES DE LA FACULTAD DE INGENIERÍA
2September 2009 Departamento de Ingeniería Civil y Ambiental
3G´omez D´ıaz; Vicedecano para el Sector Externo, Gonzalo Torres Ca-
4these institutions for their financial support.
5Summary
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6La durabilidad de las estructuras del concreto reforzado (CR) situadas
7Este estudio propone un nuevo modelo para la determinaci´on del
82.6.2. Principles of corrosion-fatigue .....................
93.3. Interaction between corrosion and concrete cracking ......
104.2.1. Probability of corrosion initiation ..................
114.5.1. Exposure to chlorides from sea water...............
12xix
135.5.3. Effects of corrosion-fatigue on total lifetime .......
14A.3. Methods for reliability assessment.......................
15Chapter 1
161.1. Background
17ration results from the existence and use of the structure (e.g., service
18models for prediction and strategies for periodic inspection and main-
191.2. rc deterioration due to corrosion and fatigue
20Chloride penetration results from a complex interaction between phy-
21(Saetta et al., 1993):
221.3. research objectives
23Chapter 2
24Physical and mechanical Mechanical
252.3. chloride ingress into concrete
26significant increment in the corrosion rate as a result of the increase
272.3. chloride ingress into concrete
28differential equation (PDE) for each physical problem (chloride trans-
29sion by concrete and by a protective passive layer of corrosion products
30Figure 2.3. Corrosion processes
31𝐴𝑠𝑡
32𝐴𝑝𝑖𝑡(𝑡) =
33− 𝑏𝑝
34Corrosion rate (𝜇A/cm2)
352.4. corrosion of reinforcement
362.5. Concrete cracking
37Tensile strength of concrete (MPa)
38(2002) results in an increase in the critical value for concrete cracking
39Cover Corrosion
40Andrade et al. (1993)
41cycles with amplitude lower than the instantaneous strength of material.
42Figure 2.9.
432.6.2. Principles of corrosion-fatigue
442.6.3. Corrosion-fatigue in RC structures
45of loading, eccentricity of loading, load history, material properties and
46Cyclic (MPa)
47On the other hand, the models for chloride penetration in unsatu-
48availability and concrete electrical resistivity.
49effect of corrosion-fatigue on the deterioration
502.8. Conclusions