Determining hydraulic properties of concrete and mortar by inverse modelling

Sébastien Schneider; Dirk Mallants; Diederik Jacques

doi:10.1557/opl.2012.601

Determining hydraulic properties of concrete and mortar by inverse modelling

Sébastien Schneider, Dirk Mallants, Diederik Jacques

Research output › peer-review

30 Scopus citations

Abstract

This paper presents a methodology and results on estimating hydraulic properties of the concrete and mortar considered for the near surface disposal facility in Dessel, Belgium, currently in development by ONDRAF/NIRAS. In a first part, we estimated the van parameters for the water retention curve for concrete and mortar obtained by calibration (i.e. inverse modelling) of the van Genuchten model [1] to experimental water retention data [2]. Data consisted of the degree of saturation measured at different values of relative humidity. In the second part, water retention data and data from a capillary suction experiment on concrete and mortar cores was used jointly to successfully determine the van Genuchten retention parameters and the Mualem hydraulic conductivity parameters (including saturated hydraulic conductivity) by inverse modelling.

Original language	English
Title of host publication	Scientific Basis for Nuclear Waste Management XXXV
Pages	367-372
Number of pages	6
Volume	1475
DOIs	https://doi.org/10.1557/opl.2012.601
State	Published - 2012
Event	2012 MRS Spring Meeting - San Francisco, CA Duration: 9 Apr 2012 → 13 Apr 2012

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1475
ISSN (Print)	0272-9172

Conference

Conference	2012 MRS Spring Meeting
Country/Territory	United States
City	San Francisco, CA
Period	2012-04-09 → 2012-04-13

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1557/opl.2012.601

Cite this

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title = "Determining hydraulic properties of concrete and mortar by inverse modelling",

abstract = "This paper presents a methodology and results on estimating hydraulic properties of the concrete and mortar considered for the near surface disposal facility in Dessel, Belgium, currently in development by ONDRAF/NIRAS. In a first part, we estimated the van parameters for the water retention curve for concrete and mortar obtained by calibration (i.e. inverse modelling) of the van Genuchten model [1] to experimental water retention data [2]. Data consisted of the degree of saturation measured at different values of relative humidity. In the second part, water retention data and data from a capillary suction experiment on concrete and mortar cores was used jointly to successfully determine the van Genuchten retention parameters and the Mualem hydraulic conductivity parameters (including saturated hydraulic conductivity) by inverse modelling.",

keywords = "Hydraulic conductivity, Radioactive Waste Management, Mortar",

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Schneider, S, Mallants, D & Jacques, D 2012, Determining hydraulic properties of concrete and mortar by inverse modelling. in Scientific Basis for Nuclear Waste Management XXXV. vol. 1475, Materials Research Society Symposium Proceedings, vol. 1475, pp. 367-372, 2012 MRS Spring Meeting, San Francisco, CA, United States, 2012-04-09. https://doi.org/10.1557/opl.2012.601

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AB - This paper presents a methodology and results on estimating hydraulic properties of the concrete and mortar considered for the near surface disposal facility in Dessel, Belgium, currently in development by ONDRAF/NIRAS. In a first part, we estimated the van parameters for the water retention curve for concrete and mortar obtained by calibration (i.e. inverse modelling) of the van Genuchten model [1] to experimental water retention data [2]. Data consisted of the degree of saturation measured at different values of relative humidity. In the second part, water retention data and data from a capillary suction experiment on concrete and mortar cores was used jointly to successfully determine the van Genuchten retention parameters and the Mualem hydraulic conductivity parameters (including saturated hydraulic conductivity) by inverse modelling.

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