Can a reliable prediction of cement paste transport properties be made using microstructure models?

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Abstract

Physical and mechanical properties of cement-based materials are directly linked to their microstructure. In recent years, different microstructure modelling platforms have emerged (e.g., HMYOSTRUC, CEMHYD3D and �ic) which simulte the evolution of the microstructure of cement paste during hydration. These microstructures can be utilized to obtain physical and mechanical properties. However, due to underlying assumptions in these models, morphologically different microstructures (different pore connectivity, pore size and percolation thresholds) are obtained from these platforms for the same water-cement ratio and cement compositions. The question then arises whether the estimations of properties of cement paste using these microstructures is reliable or not. In this paper we discuss issues related to achieving reliable predictions of the transport properties using microstructures generated from these platforms.

Details

Original languageEnglish
Title of host publicationService Life of Cement-Based Materials and Structures.
Subtitle of host publicationProceedings of the International RILEM Conference Materials, Systems and Structures in Civil Engineering 2016
PublisherRILEM Publications
Pages203-210
Volume1
Publication statusPublished - 22 Aug 2016
EventMSSCE 2016 - Materials, Systems and Structures in Civil Engineering - Lyngby, Denmark
Duration: 21 Aug 201624 Aug 2016

Conference

ConferenceMSSCE 2016 - Materials, Systems and Structures in Civil Engineering
Abbreviated titleMSSCE 2016
CountryDenmark
CityLyngby
Period2016-08-212016-08-24

Keywords

  • microstructure, cement, hydration, physical properties, Mechanical properties

ID: 1896622