Revised Model of Chloride Diffusion in Concrete Bridge by

Coastal concrete bridges will suffer from deterioration of RC structural performance and resistance attenuation because of the chloride penetration and other environment factors. This article discusses current different chloride diffusion models and puts forward the revised model of chloride diffusion in concrete bridge by considering the complex action of load influence and chloride-binding

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Publications - CONCRETE DURABILITY GROUP @ HKU

Chloride penetration in concrete exposed to cyclic drying-wetting and carbonation. Construction and Building Materials, 112, 457-463. Ye, H.*, Jin, X., Chen, W., Fu, C. & Jin, N. ( ). Prediction of chloride binding isotherms for blended cements. Computers and Concrete, 17(5), 655-672. Ye, H.* & Radlińska, A.. ( ) A review and

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PDF Numerical Model of The Chloride Transport by Capillarity

of the chloride concentration over time at a given penetration depth (David Conciatori, Laferrière, and Brühwiler ). This paper proposes to combine the advantages of two approaches: measurements taken from a new chloride detection system in concrete are compared with predictions of chloride macroscopic transport model.

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A numerical approach to the study of chloride ion

This is achieved by treating the porous concrete material as a continuum and adopting a mass transport governing differential equation to serve as the basis of a numerical model. Some of the factors which affect the behaviour of chloride ions in concrete are accounted for by considering the diffusivity functions obtained from earlier studies.

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CONCRETANDO: Concrete Permeability Testing

Concrete Permeability Testing. For concrete bridges, chloride-induced corrosion of reinforcement has long been the major durability problem and tests developed have attempted to measure, directly or indirectly, the penetrability of chloride ions into concrete. Such tests include the salt ponding methods of AASHTO T 259 and ASTM C1543 and the

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PDF Prediction of Chloride Ion Penetration of Recycled

resistance to chloride ion penetration, a statistical analysis was also performed on data gathered from several studies. It was also the authors' objective to produce a generic prediction model that yields concrete's chloride migration coefficient and total charge passed as a function of the corresponding compressive strength. 2.

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Numerical modeling of concrete carbonation under wide

Carbonation and chloride penetration in concrete has been a subject of research interest for many years. Carbonation and chloride penetration can make severe damage in reinforced concrete. The problem with corrosion in reinforced concrete is a very real one. It can affect service life of concrete structures significantly. In urban area and

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PDF Materials and Structures/Matériaux et Constructions , June

Chloride penetration into concrete in marine environment - Part II: Prediction of long term chloride penetration A. Costa and J. Appleton Departamento de Engenharia Civil, Instituto Superior Técnico, Technical University of Lisbon, Av. Rovisco Pais, 1096 Lisboa Codex, Portugal methodology the chloride concentration inside concrete

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Frontiers | Determination of the Corrosion Rate of Steel

Introduction. Reinforced concrete is the most widely used construction materials in the world. In the service life of reinforced concrete structure, the steel bars embedded in concrete face corrosion problems due to carbonization and chloride ions ingression of concrete, which causes cracking/spalling of concrete cover and strength degradation of the steel bar (Yu et al., ).

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Influence of freeze-thaw cycles on capillary absorption

article{osti_22701570, title = {Influence of freeze-thaw cycles on capillary absorption and chloride penetration into concrete}, author = {Zhang, Peng and Institute of Concrete Structures and Building Materials, Karlsruhe Institute of Technology, 76131 Karlsruhe and Wittmann, Folker H., E-mail: [email protected] and Aedificat Institute Freiburg, 79100 Freiburg and Vogel, Michael and

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Modeling of Chloride Penetration into Concrete Structures

Modeling of Chloride Penetration into Concrete Structures under Flexural Cyclic Load NUMERICAL ANALYSIS Prediction of chloride penetration under fatigue and tidal environment content (wt% of cement) 0.40.6 content (wt% of cement) 0.8 1 1.2

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