Performance and microstructure of MgO-SiO2 concrete under different environments

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...

Full description

Saved in:
Bibliographic Details
Main Authors: Sonat, Cem, Teo, W. W., Unluer, Cise
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2020
Subjects:
MgO
Online Access:https://hdl.handle.net/10356/137102
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-137102
record_format dspace
spelling sg-ntu-dr.10356-1371022024-03-13T02:54:09Z Performance and microstructure of MgO-SiO2 concrete under different environments Sonat, Cem Teo, W. W. Unluer, Cise School of Civil and Environmental Engineering Engineering::Civil engineering MgO SiO2 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. MOE (Min. of Education, S’pore) Accepted version 2020-02-25T05:59:19Z 2020-02-25T05:59:19Z 2018 Journal Article Sonat, C., Teo, W. W., & Unluer, C. (2018). Performance and microstructure of MgO-SiO2 concrete under different environments. Construction and Building Materials, 184, 549–564. doi:10.1016/j.conbuildmat.2018.07.032 0950-0618 https://hdl.handle.net/10356/137102 2-s2.0-85049540169 184 549 564 en Construction and Building Materials © 2018 Elsevier Ltd. All rights reserved. This paper was published in Construction and Building Materials and is made available with permission of Elsevier Ltd. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Civil engineering
MgO
SiO2
spellingShingle Engineering::Civil engineering
MgO
SiO2
Sonat, Cem
Teo, W. W.
Unluer, Cise
Performance and microstructure of MgO-SiO2 concrete under different environments
description 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.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Sonat, Cem
Teo, W. W.
Unluer, Cise
format Article
author Sonat, Cem
Teo, W. W.
Unluer, Cise
author_sort Sonat, Cem
title Performance and microstructure of MgO-SiO2 concrete under different environments
title_short Performance and microstructure of MgO-SiO2 concrete under different environments
title_full Performance and microstructure of MgO-SiO2 concrete under different environments
title_fullStr Performance and microstructure of MgO-SiO2 concrete under different environments
title_full_unstemmed Performance and microstructure of MgO-SiO2 concrete under different environments
title_sort performance and microstructure of mgo-sio2 concrete under different environments
publishDate 2020
url https://hdl.handle.net/10356/137102
_version_ 1794549391968698368