Geopolymer, calcium aluminate, and Portland cement-based mortars : comparing degradation using acetic acid

In this paper, we comparitvley studied acetic acid attacks on geopolymer (GP-M), calcium aluminate (CAC-M), and Portland cement (PC-M)-based mortars. Consequent formations of deteriorated or transition layers surrounding the unaltered core material was classified in these three mortars, according to...

Full description

Saved in:
Bibliographic Details
Main Authors: Ukrainczyk, Neven, Muthu, Murugan, Vogt, Oliver, Koenders, Eddie
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2020
Subjects:
Online Access:https://hdl.handle.net/10356/141951
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-141951
record_format dspace
spelling sg-ntu-dr.10356-1419512020-06-12T03:37:59Z Geopolymer, calcium aluminate, and Portland cement-based mortars : comparing degradation using acetic acid Ukrainczyk, Neven Muthu, Murugan Vogt, Oliver Koenders, Eddie School of Civil and Environmental Engineering Engineering::Civil engineering Geopolymer Portland Cement In this paper, we comparitvley studied acetic acid attacks on geopolymer (GP-M), calcium aluminate (CAC-M), and Portland cement (PC-M)-based mortars. Consequent formations of deteriorated or transition layers surrounding the unaltered core material was classified in these three mortars, according to different degradation levels depending on what binder type was involved. Apart from mass loss, hardness, and deterioration depth, their microstructural alterations were analyzed using test methods such as scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS), mercury intrusion porosimetry (MIP), powder X-ray diffraction (XRD), and thermogravimetric analysis-differential scanning calorimeter (TGA-DSC), which showed the different mechanisms for each binder type. Elemental maps revealed the decalcification (PC-M and CAC-M) and depolymerization (GP-M) that occurred across the mortar sections. The mass loss, hardness, and porosity were the least affected for GP-M, followed by CAC-M. These results points out that geopolymer-based mortars have improved acid resistance, which can be used as a potential alternative to conventional cement concretes that have been exposed to agro-industrial environments. Published version 2020-06-12T03:37:59Z 2020-06-12T03:37:59Z 2019 Journal Article Ukrainczyk, N., Muthu, M., Vogt, O., & Koenders, E. (2019). Geopolymer, calcium aluminate, and Portland cement-based mortars : comparing degradation using acetic acid. Materials, 12(19), 3115-. doi:10.3390/ma12193115 1996-1944 https://hdl.handle.net/10356/141951 10.3390/ma12193115 31554321 2-s2.0-85073730287 19 12 en Materials © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Civil engineering
Geopolymer
Portland Cement
spellingShingle Engineering::Civil engineering
Geopolymer
Portland Cement
Ukrainczyk, Neven
Muthu, Murugan
Vogt, Oliver
Koenders, Eddie
Geopolymer, calcium aluminate, and Portland cement-based mortars : comparing degradation using acetic acid
description In this paper, we comparitvley studied acetic acid attacks on geopolymer (GP-M), calcium aluminate (CAC-M), and Portland cement (PC-M)-based mortars. Consequent formations of deteriorated or transition layers surrounding the unaltered core material was classified in these three mortars, according to different degradation levels depending on what binder type was involved. Apart from mass loss, hardness, and deterioration depth, their microstructural alterations were analyzed using test methods such as scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS), mercury intrusion porosimetry (MIP), powder X-ray diffraction (XRD), and thermogravimetric analysis-differential scanning calorimeter (TGA-DSC), which showed the different mechanisms for each binder type. Elemental maps revealed the decalcification (PC-M and CAC-M) and depolymerization (GP-M) that occurred across the mortar sections. The mass loss, hardness, and porosity were the least affected for GP-M, followed by CAC-M. These results points out that geopolymer-based mortars have improved acid resistance, which can be used as a potential alternative to conventional cement concretes that have been exposed to agro-industrial environments.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Ukrainczyk, Neven
Muthu, Murugan
Vogt, Oliver
Koenders, Eddie
format Article
author Ukrainczyk, Neven
Muthu, Murugan
Vogt, Oliver
Koenders, Eddie
author_sort Ukrainczyk, Neven
title Geopolymer, calcium aluminate, and Portland cement-based mortars : comparing degradation using acetic acid
title_short Geopolymer, calcium aluminate, and Portland cement-based mortars : comparing degradation using acetic acid
title_full Geopolymer, calcium aluminate, and Portland cement-based mortars : comparing degradation using acetic acid
title_fullStr Geopolymer, calcium aluminate, and Portland cement-based mortars : comparing degradation using acetic acid
title_full_unstemmed Geopolymer, calcium aluminate, and Portland cement-based mortars : comparing degradation using acetic acid
title_sort geopolymer, calcium aluminate, and portland cement-based mortars : comparing degradation using acetic acid
publishDate 2020
url https://hdl.handle.net/10356/141951
_version_ 1681057329558061056