Diffusivity of saturated ordinary Portland cement-based materials: A critical review of experimental and analytical modelling approaches

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Diffusivity of saturated ordinary Portland cement-based materials: A critical review of experimental and analytical modelling approaches. / Patel, Ravi; Phung, Quoc Tri; Seetharam, Suresh; Perko, Janez; Jacques, Diederik; Maes, Norbert; De Schutter, Geert; Ye, Guang; Van Breugel, Klaas.

In: Cement and Concrete Research, Vol. 90, 01.12.2016, p. 52–72.

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@article{dc493e6bda1e4ef7a22dce048b20bf78,
title = "Diffusivity of saturated ordinary Portland cement-based materials: A critical review of experimental and analytical modelling approaches",
abstract = "This paper provides a comprehensive overviewof existing experimental and modelling approaches to determine effective diffusion coefficients of water saturated ordinary Portland cement-based materials. A dataset for diffusivity obtained from different experimental techniques have been presented for cement paste, mortar and concrete. For cement paste at low porosities, diffusivity reported by different authors varies up to a factor of five and electrical resistivity measurements for low capillary porosity are up to one order of magnitude higher compared to other techniques. Experimental data ofmortar and concrete reveals predominant influence of increasing tortuosity due to aggregates and limited influence of interface transition zone. Hence, a particular emphasis has been placed on assessing predictability of diffusivity models for cement paste on a larger dataset collected in this paper. It has been observed that all predictive models have similar level of accuracy and fail to predict electrical resistivity data at low capillary porosity as these models are not calibrated using electrical resistivity data.",
keywords = "microstructure, diffusion, transport properties, cement paste, analytical models",
author = "Ravi Patel and Phung, {Quoc Tri} and Suresh Seetharam and Janez Perko and Diederik Jacques and Norbert Maes and {De Schutter}, Geert and Guang Ye and {Van Breugel}, Klaas",
note = "Score=10",
year = "2016",
month = dec,
day = "1",
doi = "10.1016/j.cemconres.2016.09.015",
language = "English",
volume = "90",
pages = "52–72",
journal = "Cement and Concrete Research",
issn = "0008-8846",
publisher = "Elsevier",

}

RIS - Download

TY - JOUR

T1 - Diffusivity of saturated ordinary Portland cement-based materials: A critical review of experimental and analytical modelling approaches

AU - Patel, Ravi

AU - Phung, Quoc Tri

AU - Seetharam, Suresh

AU - Perko, Janez

AU - Jacques, Diederik

AU - Maes, Norbert

AU - De Schutter, Geert

AU - Ye, Guang

AU - Van Breugel, Klaas

N1 - Score=10

PY - 2016/12/1

Y1 - 2016/12/1

N2 - This paper provides a comprehensive overviewof existing experimental and modelling approaches to determine effective diffusion coefficients of water saturated ordinary Portland cement-based materials. A dataset for diffusivity obtained from different experimental techniques have been presented for cement paste, mortar and concrete. For cement paste at low porosities, diffusivity reported by different authors varies up to a factor of five and electrical resistivity measurements for low capillary porosity are up to one order of magnitude higher compared to other techniques. Experimental data ofmortar and concrete reveals predominant influence of increasing tortuosity due to aggregates and limited influence of interface transition zone. Hence, a particular emphasis has been placed on assessing predictability of diffusivity models for cement paste on a larger dataset collected in this paper. It has been observed that all predictive models have similar level of accuracy and fail to predict electrical resistivity data at low capillary porosity as these models are not calibrated using electrical resistivity data.

AB - This paper provides a comprehensive overviewof existing experimental and modelling approaches to determine effective diffusion coefficients of water saturated ordinary Portland cement-based materials. A dataset for diffusivity obtained from different experimental techniques have been presented for cement paste, mortar and concrete. For cement paste at low porosities, diffusivity reported by different authors varies up to a factor of five and electrical resistivity measurements for low capillary porosity are up to one order of magnitude higher compared to other techniques. Experimental data ofmortar and concrete reveals predominant influence of increasing tortuosity due to aggregates and limited influence of interface transition zone. Hence, a particular emphasis has been placed on assessing predictability of diffusivity models for cement paste on a larger dataset collected in this paper. It has been observed that all predictive models have similar level of accuracy and fail to predict electrical resistivity data at low capillary porosity as these models are not calibrated using electrical resistivity data.

KW - microstructure

KW - diffusion

KW - transport properties

KW - cement paste

KW - analytical models

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/19967563

U2 - 10.1016/j.cemconres.2016.09.015

DO - 10.1016/j.cemconres.2016.09.015

M3 - Article

VL - 90

SP - 52

EP - 72

JO - Cement and Concrete Research

JF - Cement and Concrete Research

SN - 0008-8846

ER -

ID: 1515940