Modeling and simulation of chloride diffusion in concrete with recycled aggregates
Visualitza/Obre
10.15224/ 978-1-63248-006-4-63
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/26241
Tipus de documentText en actes de congrés
Data publicació2014
EditorInstitute of Research Engineers and Doctors (the IRED)
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
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
CitacióAcuña, O. [et al.]. Modeling and simulation of chloride diffusion in concrete with recycled aggregates. A: International Conference on Advances in Civil and Structural Engineering. "2014 proceeding of the International Conference on Advances in Civil and Structural Engineering, 02-03 August, 2014 Kuala Lumpur, Malaysia". Kuala Lumpur: Institute of Research Engineers and Doctors (the IRED), 2014, p. 15-19.
ISBN978-1-63248-006-4
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