Characterization of carbonation-induced changes in crack features and geometry in hardened cement pastes

Research output: Contribution to report/book/conference proceedingsIn-proceedings paper

Institutes & Expert groups

  • KUL - Katholieke Universiteit Leuven

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Abstract

Microcracks have a potentially significant influence on geochemical processes in cement-based materials. Microcrack properties (e.g. length, aperture, roughness) in turn are changed by various reactions, such as carbonation of the material. In this work, experimental crack geometry is analyzed statistically in order to understand how the crack features influence the carbonation process and vice versa. The surface roughness is a key variable because it substantially influences transport properties. In order to obtain different crack characteristics, surfaces with different properties are examined by vertical scanning interferometry. The first results on experimental, statistical and geometrical characterization of cracks are presented and discussed.

Details

Original languageEnglish
Title of host publicationCharacterization of carbonation-induced changes in crack features and geometry in hardened cement pastes
PublisherRILEM Publications
Pages747-752
VolumePRO 120
Publication statusPublished - 12 Sep 2017
Event2nd International RILEM/COST Conference on Early Age Cracking and Serviceability in Cement-based Materials and Structures - Solvay Brussels School of Economics and Management, Université LIbre de Bruxelles ULB, Brussels, Belgium
Duration: 12 Sep 201714 Sep 2017
http://www.eac2.be/

Conference

Conference2nd International RILEM/COST Conference on Early Age Cracking and Serviceability in Cement-based Materials and Structures
Abbreviated titleEAC02
CountryBelgium
CityBrussels
Period2017-09-122017-09-14
Internet address

Keywords

  • microcracks, surface roughness, carbonation, hardened cement paste, profilometry

ID: 3069460