Modelling of chloride diffusivity in concrete considering effect of aggregates

Young Cheol Choi; Byoungsun Park; Gi Sung Pang; Kwang Myong Lee; Seongcheol Choi

doi:10.1016/j.conbuildmat.2017.01.041

Modelling of chloride diffusivity in concrete considering effect of aggregates

Young Cheol Choi
, Byoungsun Park
, Gi Sung Pang
, Kwang Myong Lee
, Seongcheol Choi

Graduate School of Water Resources

Gachon University
Korea Conformity Laboratories
Sungkyunkwan University
Chung-Ang University

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

In this study, a simple prediction model of chloride diffusivity in concrete is proposed. The model considers the interfacial transition zone and the aggregate shapes. An experiment was performed in which the non-steady-state diffusivity of concrete specimens with water-to-cement ratios of 0.4, 0.5, and 0.6 were measured at ages of 3, 7, 28, and 91 days. The diffusivity predicted using the model agreed well with the experimental results in this study. The proposed model is expected to be useful in realistically predicting the diffusivity of chloride in concrete.

Original language	English
Pages (from-to)	81-87
Number of pages	7
Journal	Construction and Building Materials
Volume	136
DOIs	https://doi.org/10.1016/j.conbuildmat.2017.01.041
State	Published - 1 Apr 2017

Keywords

Aggregate shape
Chloride diffusivity
Interfacial transition zone (ITZ)
Prediction model

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10.1016/j.conbuildmat.2017.01.041

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title = "Modelling of chloride diffusivity in concrete considering effect of aggregates",

abstract = "In this study, a simple prediction model of chloride diffusivity in concrete is proposed. The model considers the interfacial transition zone and the aggregate shapes. An experiment was performed in which the non-steady-state diffusivity of concrete specimens with water-to-cement ratios of 0.4, 0.5, and 0.6 were measured at ages of 3, 7, 28, and 91 days. The diffusivity predicted using the model agreed well with the experimental results in this study. The proposed model is expected to be useful in realistically predicting the diffusivity of chloride in concrete.",

keywords = "Aggregate shape, Chloride diffusivity, Interfacial transition zone (ITZ), Prediction model",

author = "Choi, \{Young Cheol\} and Byoungsun Park and Pang, \{Gi Sung\} and Lee, \{Kwang Myong\} and Seongcheol Choi",

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doi = "10.1016/j.conbuildmat.2017.01.041",

language = "English",

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T1 - Modelling of chloride diffusivity in concrete considering effect of aggregates

AU - Choi, Young Cheol

AU - Park, Byoungsun

AU - Pang, Gi Sung

AU - Lee, Kwang Myong

AU - Choi, Seongcheol

PY - 2017/4/1

Y1 - 2017/4/1

N2 - In this study, a simple prediction model of chloride diffusivity in concrete is proposed. The model considers the interfacial transition zone and the aggregate shapes. An experiment was performed in which the non-steady-state diffusivity of concrete specimens with water-to-cement ratios of 0.4, 0.5, and 0.6 were measured at ages of 3, 7, 28, and 91 days. The diffusivity predicted using the model agreed well with the experimental results in this study. The proposed model is expected to be useful in realistically predicting the diffusivity of chloride in concrete.

AB - In this study, a simple prediction model of chloride diffusivity in concrete is proposed. The model considers the interfacial transition zone and the aggregate shapes. An experiment was performed in which the non-steady-state diffusivity of concrete specimens with water-to-cement ratios of 0.4, 0.5, and 0.6 were measured at ages of 3, 7, 28, and 91 days. The diffusivity predicted using the model agreed well with the experimental results in this study. The proposed model is expected to be useful in realistically predicting the diffusivity of chloride in concrete.

KW - Aggregate shape

KW - Chloride diffusivity

KW - Interfacial transition zone (ITZ)

KW - Prediction model

UR - https://www.scopus.com/pages/publications/85009494355

U2 - 10.1016/j.conbuildmat.2017.01.041

DO - 10.1016/j.conbuildmat.2017.01.041

M3 - Article

AN - SCOPUS:85009494355

SN - 0950-0618

VL - 136

SP - 81

EP - 87

JO - Construction and Building Materials

JF - Construction and Building Materials

ER -

Modelling of chloride diffusivity in concrete considering effect of aggregates

Abstract

Keywords

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