Micromechanical Investigation of Magnesium Oxychloride Cement Paste
In this study, nanoindentation coupled with scanning electron microscopy technique for the microstructural and micromechanical characterizations were applied on the magnesium oxychloride (MOC) cement paste. For the first time, micromechanical properties of the reaction product, phase 5 (5Mg(OH)2 &middtot;MgCl2· 8H2O) in MOC cement system were investigated. It was determined that the average indentation modulus and hardness of phase 5 were 32.5 ± 4.2 GPa and 1.03 ± 0.19 GPa, respectively. Moreover, the elastic modulus of the MOC cement paste at micro- and macro-scales were further correlated, which built a framework for predicting its macroscopic elastic modulus.
C. Hu et al., "Micromechanical Investigation of Magnesium Oxychloride Cement Paste," Construction and Building Materials, vol. 105, pp. 496-502, Elsevier, Feb 2016.
The definitive version is available at http://dx.doi.org/10.1016/j.conbuildmat.2015.12.182
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Elastic Moduli; Magnesium; Microstructure; Scanning Electron Microscopy; Indentation Modulus; Macroscopic Elastic Modulus; Magnesium Oxychloride; Magnesium Oxychloride (MOC) Cement; Micro-structural; Micromechanical Characterization; Micromechanical Property; Multi-scale Modeling; Cements
International Standard Serial Number (ISSN)
Article - Journal
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