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Modeling and simulation of chloride diffusion in concrete with recycled aggregates
The concrete along with steel, are the responsibility structural material required to respond to mechanical stresses; specifically, the tensile stresses are borne by the steel, and it is this material that involvement of durability can lose their resilience. Corrosion of steel is one of the main causes of this affectation in the steel, and this is caused by the entry of chloride ions in the called phenomenon diffusion. This phenomenon is governed by the diffusion equations of the Fick's first and second law [1]; for these, there are several models that describe the behavior of chloride diffusion in conventional concrete, but nevertheless, not in the recycled concrete. In this paper, are used as basis, the models of Janzhuang Xiao et al. [2] and Long-Yuang Li et al. [3] to model and simulate the phenomenon of chloride diffusion in concrete with recycled aggregates; for which it has been used a five-phase model for the aggregate: old and new Interfacial Transition Zones (ITZ), new and old mortar, and original aggregate. Furthermore, in this model were considered as variables the Thickness of the Interfacial Transition Zone (TITZ), the rate of old mortar adhered, the volume fraction of the aggregates and the continuity of the ITZ. The model considered, was composed by a ; Peer Reviewed ; Postprint (published version)
Modeling and simulation of chloride diffusion in concrete with recycled aggregates
The concrete along with steel, are the responsibility structural material required to respond to mechanical stresses; specifically, the tensile stresses are borne by the steel, and it is this material that involvement of durability can lose their resilience. Corrosion of steel is one of the main causes of this affectation in the steel, and this is caused by the entry of chloride ions in the called phenomenon diffusion. This phenomenon is governed by the diffusion equations of the Fick's first and second law [1]; for these, there are several models that describe the behavior of chloride diffusion in conventional concrete, but nevertheless, not in the recycled concrete. In this paper, are used as basis, the models of Janzhuang Xiao et al. [2] and Long-Yuang Li et al. [3] to model and simulate the phenomenon of chloride diffusion in concrete with recycled aggregates; for which it has been used a five-phase model for the aggregate: old and new Interfacial Transition Zones (ITZ), new and old mortar, and original aggregate. Furthermore, in this model were considered as variables the Thickness of the Interfacial Transition Zone (TITZ), the rate of old mortar adhered, the volume fraction of the aggregates and the continuity of the ITZ. The model considered, was composed by a ; Peer Reviewed ; Postprint (published version)
Modeling and simulation of chloride diffusion in concrete with recycled aggregates
Acuña Agüero, Octavio Humberto (author) / Corral Higuera, Ramón (author) / Barrios-Durstewitz, Carlos (author) / Gómez Soberón, José Manuel Vicente (author) / Arredondo Rea, Susana Paola (author) / Almaral Sánchez, Jorge Luis (author) / Rosas Casarez,, Carlos Antonio (author) / Chinchillas Chinchillas, Manuel de Jesús (author) / Universitat Politècnica de Catalunya. Departament de Construccions Arquitectòniques II / Universitat Politècnica de Catalunya. GICITED - Grup Interdiciplinari de Ciència i Tecnologia en l'Edificació
2014-01-01
Miscellaneous
Electronic Resource
English
DDC:
690
Modeling and simulation of chloride diffusion in concrete with recycled aggregates
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