An experimental study on the effect of chloride penetration on moisture diffusion in concrete

Ababneh, Ayman

doi:10.1617/13936

Cited by 8 publications

(14 citation statements)

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“…5. Our previous study (Ababneh and Xi 2002) showed that the other coupling parameter (the effect of chloride penetration on moisture transfer) depends also on chloride concentration. Therefore, the two governing equations for moisture and chloride transport in concrete are not only fully coupled but also nonlinear.…”

Section: Discussionmentioning

confidence: 99%

“…The present study is a continuation of the study conducted by Ababneh and Xi (2002), but focusing on the coupling effect of moisture transfer on chloride penetration. In the present study, we established an experimental method to study the coupling effect and we developed a theoretical approach to determine the coupling parameter using the test data.…”

Section: Introductionmentioning

confidence: 94%

“…In this study, we focus on the coupled moisture and chloride transport processes, and we consider the chloride and moisture gradients as the two driving forces acting simultaneously in concrete. Therefore, the conventional Fick's first law must be modified (Ababneh and Xi 2002).…”

Section: Basic Formulationmentioning

confidence: 99%

“…In order to solve the two coupled equations, the two coupling parameters must be determined first. To this end, Ababneh and Xi (2002) designed a test to determine the coupling parameter DH-Cl in Eq. 8, which represents the effect of chloride penetration on moisture transport.…”

Section: Basic Formulationmentioning

confidence: 99%

“…In their model, the chloride diffusion coefficient depends on the degree of saturation. Ababneh and Xi (2002) conducted a systematic experimental study on the effect of chloride penetration on the moisture transport. Their test results showed that even if the concrete is saturated and there is no moisture gradient, the moisture transport is made possible by the chloride gradient, which is similar to what happened in the moisture transport process in soil driven by chemical gradients (Lu and Likos 2004).…”

Section: Introductionmentioning

confidence: 99%

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The effect of moisture transport on chloride penetration in concrete

Homan¹,

Ababneh

2016

Construction and Building Materials

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This paper presents results of an experimental investigation on the effect of moisture transport on chloride penetration in partially saturated concrete. The paper includes the development of an experimental setup, analysis of experimental data, and formulation of the governing equations to characterize the moisture-chloride interaction in non-saturated concrete. The experimental setup consisted of two sets of fully and partially saturated concrete specimens that were exposed to chloride solutions. Humidity sensors were embedded in the concrete specimens to measure the internal relative humidity and the variation of humidity profiles over time. The governing equation that describes the chloride transport in saturated concrete was modified to account for the chloride movement induced by the moisture transport. The comparison of the chloride profiles obtained from the partially and fully saturated concrete specimens confirmed the coupling effect between the moisture transport and chloride penetration in concrete. The measured chloride and humidity profiles were analyzed to determine the coupling parameter in the governing equation. The analysis of the experimental data indicated that the coupling term in the governing equation is concentration dependent which means that the governing equation is nonlinear.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 94%

Section: Basic Formulationmentioning

confidence: 99%

Section: Basic Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The effect of moisture transport on chloride penetration in concrete

Homan¹,

Ababneh

2016

Construction and Building Materials

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Influence of carbonation on ionic transport in unsaturated concrete: evolution of porosity and prediction of service life

Achour

Amiri

Bignonnet

et al. 2018

European Journal of Environmental and Civil Engineering

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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A Thermo-Hygro-Coupled Model for Chloride Penetration in Concrete Structures

Damrongwiriyanupap

Limkatanyu

2015

Advances in Materials Science and Engineering

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Corrosion damage due to chloride attack is one of the most concerning issues for long term durability of reinforced concrete structures. By developing the reliable mathematical model of chloride penetration into concrete structures, it can help structural engineers and management agencies with predicting the service life of reinforced concrete structures in order to effectively schedule the maintenance, repair, and rehabilitation program. This paper presents a theoretical and computational model for chloride diffusion in concrete structures. The governing equations are taking into account the coupled transport process of chloride ions, moisture, and temperature. This represents the actual condition of concrete structures which are always found in nonsaturated and nonisothermal conditions. The fully coupled effects among chloride, moisture, and heat diffusion are considered and included in the model. The coupling parameters evaluated based on the available material models and test data are proposed and explicitly incorporated in the governing equations. The numerical analysis of coupled transport equations is performed using the finite element method. The model is validated by comparing the numerical results against the available experimental data and a good agreement is observed.

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An experimental study on the effect of chloride penetration on moisture diffusion in concrete

Cited by 8 publications

References 0 publications

The effect of moisture transport on chloride penetration in concrete

The effect of moisture transport on chloride penetration in concrete

Influence of carbonation on ionic transport in unsaturated concrete: evolution of porosity and prediction of service life

A Thermo-Hygro-Coupled Model for Chloride Penetration in Concrete Structures

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