Performance and microstructure of MgO-SiO2 concrete under different environments

Sonat, C., Teo, W.W. and Unluer, C. (2018) Performance and microstructure of MgO-SiO2 concrete under different environments. Construction and Building Materials, 184, pp. 549-564. (doi: 10.1016/j.conbuildmat.2018.07.032)

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This study investigated the changes in the performance and microstructure of MgO-SiO2 concrete under exposure to different environments involving carbonation, NaCl, MgCl2 and MgSO4 solutions for up to 180 days. Compressive strength results were compared to Portland cement (PC)-based concrete samples subjected to the same environments. Microstructural analysis performed via FESEM, XRD and TG/DTG indicated a lack of change in the composition of MgO-SiO2 samples. The sustained mechanical performance and the clear presence of hydrate phases such as brucite and M-S-H even after longer exposures highlighted the resistance of MgO-SiO2 formulations and their potential to be utilized in structural applications.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Unluer, Dr Cise
Authors: Sonat, C., Teo, W.W., and Unluer, C.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:Construction and Building Materials
ISSN (Online):1879-0526
Published Online:09 July 2018

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