Carbonation and Chloride Ions’ Penetration of Alkali-Activated Materials: A Review

Carbonation and Chloride Ions’ Penetration of Alkali-Activated Materials: A Review

Alkali-activated materials (AAMs) are widely recognized as potential alternatives to ordinary Portland cement (OPC) due to their lower carbon footprint. However, like OPC, AAMs can also generate some durable problems when exposed to aggressive environments and the mechanisms and possible improvement...

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Main Authors: Xuanhan Zhang, Kaidi Long, Wei Liu, Lixiao Li, Wu-Jian Long
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Molecules
Subjects:
alkali-activated materials
durability
carbonation
chloride ions attack
enhancing method
Online Access:https://www.mdpi.com/1420-3049/25/21/5074
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spelling doaj-c3e93d617da14a7d88f1426b1c417bed2020-11-25T03:44:33ZengMDPI AGMolecules1420-30492020-11-01255074507410.3390/molecules25215074Carbonation and Chloride Ions’ Penetration of Alkali-Activated Materials: A ReviewXuanhan Zhang0Kaidi Long1Wei Liu2Lixiao Li3Wu-Jian Long4Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen Durability Center for Civil and Transportation Engineering, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, ChinaGuangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen Durability Center for Civil and Transportation Engineering, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, ChinaGuangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen Durability Center for Civil and Transportation Engineering, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, ChinaGuangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen Durability Center for Civil and Transportation Engineering, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, ChinaGuangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen Durability Center for Civil and Transportation Engineering, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, ChinaAlkali-activated materials (AAMs) are widely recognized as potential alternatives to ordinary Portland cement (OPC) due to their lower carbon footprint. However, like OPC, AAMs can also generate some durable problems when exposed to aggressive environments and the mechanisms and possible improvements are still not fully clear in existing investigations. Furthermore, the corrosion mechanisms of AAMs are different from OPC due to the discrepant reaction products and pore structures. Thus, this study’s aim is to review the chemical reaction mechanisms, factors, and mitigation methods when AAMs are attacked by carbonation and chloride ions, along with a summative discussion regarding instructive insights to durable problems of AAMs.https://www.mdpi.com/1420-3049/25/21/5074alkali-activated materialsdurabilitycarbonationchloride ions attackenhancing method
collection DOAJ
language English
format Article
sources DOAJ
author Xuanhan Zhang
Kaidi Long
Wei Liu
Lixiao Li
Wu-Jian Long
spellingShingle Xuanhan Zhang
Kaidi Long
Wei Liu
Lixiao Li
Wu-Jian Long
Carbonation and Chloride Ions’ Penetration of Alkali-Activated Materials: A Review
Molecules
alkali-activated materials
durability
carbonation
chloride ions attack
enhancing method
author_facet Xuanhan Zhang
Kaidi Long
Wei Liu
Lixiao Li
Wu-Jian Long
author_sort Xuanhan Zhang
title Carbonation and Chloride Ions’ Penetration of Alkali-Activated Materials: A Review
title_short Carbonation and Chloride Ions’ Penetration of Alkali-Activated Materials: A Review
title_full Carbonation and Chloride Ions’ Penetration of Alkali-Activated Materials: A Review
title_fullStr Carbonation and Chloride Ions’ Penetration of Alkali-Activated Materials: A Review
title_full_unstemmed Carbonation and Chloride Ions’ Penetration of Alkali-Activated Materials: A Review
title_sort carbonation and chloride ions’ penetration of alkali-activated materials: a review
publisher MDPI AG
series Molecules
issn 1420-3049
publishDate 2020-11-01
description Alkali-activated materials (AAMs) are widely recognized as potential alternatives to ordinary Portland cement (OPC) due to their lower carbon footprint. However, like OPC, AAMs can also generate some durable problems when exposed to aggressive environments and the mechanisms and possible improvements are still not fully clear in existing investigations. Furthermore, the corrosion mechanisms of AAMs are different from OPC due to the discrepant reaction products and pore structures. Thus, this study’s aim is to review the chemical reaction mechanisms, factors, and mitigation methods when AAMs are attacked by carbonation and chloride ions, along with a summative discussion regarding instructive insights to durable problems of AAMs.
topic alkali-activated materials
durability
carbonation
chloride ions attack
enhancing method
url https://www.mdpi.com/1420-3049/25/21/5074
work_keys_str_mv AT xuanhanzhang carbonationandchlorideionspenetrationofalkaliactivatedmaterialsareview
AT kaidilong carbonationandchlorideionspenetrationofalkaliactivatedmaterialsareview
AT weiliu carbonationandchlorideionspenetrationofalkaliactivatedmaterialsareview
AT lixiaoli carbonationandchlorideionspenetrationofalkaliactivatedmaterialsareview
AT wujianlong carbonationandchlorideionspenetrationofalkaliactivatedmaterialsareview
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