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dc.contributor.authorHe, Shanen_US
dc.contributor.authorYang, En-Huaen_US
dc.contributor.authorLi, Zhongen_US
dc.identifier.citationHe, S., Li, Z.,& Yang, E.-H. (2019). Quantitative characterization of anisotropic properties of the interfacial transition zone (ITZ) between microfiber and cement paste. Cement and Concrete Research, 122136-146. doi:10.1016/j.cemconres.2019.05.007en_US
dc.description.abstractA new approach to characterize ITZ between microfiber and cement matrix is reported. Results show that microstructure of hydrated cement paste is highly modified in the vicinity of microfibers, with higher porosity and less anhydrous cement. ITZ can extend up to 100 μm from the interface into the matrix. The larger extent of ITZ suggests that perturbation due to inclusion of microfibers to packing of cement grains is severer than that due to inclusion of aggregates. Furthermore, ITZ between microfiber and cement matrix is highly heterogeneous along its axial direction. Existing ITZ analysis methods performed on 2-D cross-sectional plane intersecting with fiber axis thus can lead to errors and uncertainties. Mechanical properties of ITZ between microfiber and cement matrix are anisotropic. Stiffness and ductility of ITZ in the radial direction are 31% and 28% higher than that in the tangential direction, respectively.en_US
dc.format.extent41 p.en
dc.relation.ispartofCement and Concrete Researchen_US
dc.relation.ispartofseriesCement and Concrete Researchen
dc.rights© 2019 Elsevier. All rights reserved. This paper was published in Cement and Concrete Research and is made available with permission of Elsevier.en_US
dc.subjectDRNTU::Engineering::Civil engineeringen_US
dc.subjectInterfacial Transition Zone (B)en_US
dc.subjectMicrostructure (B)en_US
dc.titleQuantitative characterization of anisotropic properties of the interfacial transition zone (ITZ) between microfiber and cement pasteen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.description.versionAccepted versionen_US
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