Durability of geopolymers and geopolymer concretes: A review

Geopolymers are green materials with three-dimensional silicon and aluminum tetrahedral structures that can be serving as environmentally friendly construction materials and therefore have the potential to contribute to sustainable development. In this paper, the mechanism and research progress rega...

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Autores principales:	Lingyu Tian, Dongpo He, Jianing Zhao, Hongguang Wang
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	geopolymer preparation carbonation resistance fire resistance corrosion resistance permeation properties Technology T Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/4002218ff13244c785ceaa0fc879a899
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spelling	oai:doaj.org-article:4002218ff13244c785ceaa0fc879a8992021-12-05T14:11:02ZDurability of geopolymers and geopolymer concretes: A review1605-812710.1515/rams-2021-0002https://doaj.org/article/4002218ff13244c785ceaa0fc879a8992021-01-01T00:00:00Zhttps://doi.org/10.1515/rams-2021-0002https://doaj.org/toc/1605-8127Geopolymers are green materials with three-dimensional silicon and aluminum tetrahedral structures that can be serving as environmentally friendly construction materials and therefore have the potential to contribute to sustainable development. In this paper, the mechanism and research progress regarding the carbonation resistance, structural fire resistance, corrosion resistance, permeation properties and frost resistance of geopolymer concretes are reviewed, and the main problems with the durability of geopolymer concretes are discussed. Geopolymers possess the superb mechanic property and their compression strengths could be higher than 100 MPa. Generally, the higher the GPC strength, the better the carbonation-resistant. GPC has excellent fire resistance, due to geopolymers are acquired an inorganic skeleton which is affected by the alkali content, alkali cation, and Si/Ai ratio. There are a large number of Al-O and Si-O structures in geopolymers. Geopolymers do not react with acids at room temperature and can be used to make acid-resistant materials. Besides, GPC owning low porosity volume shows good resistance to permeability. The freezing-thawing failure mechanism of geopolymer concretes is mainly based on hydrostatic and osmotic pressure theory. GPC has poor frost resistance, and the freezing-thawing limit is less than 75 times.Lingyu TianDongpo HeJianing ZhaoHongguang WangDe Gruyterarticlegeopolymerpreparationcarbonation resistancefire resistancecorrosion resistancepermeation propertiesTechnologyTChemical technologyTP1-1185ENReviews on Advanced Materials Science, Vol 60, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	geopolymer preparation carbonation resistance fire resistance corrosion resistance permeation properties Technology T Chemical technology TP1-1185
spellingShingle	geopolymer preparation carbonation resistance fire resistance corrosion resistance permeation properties Technology T Chemical technology TP1-1185 Lingyu Tian Dongpo He Jianing Zhao Hongguang Wang Durability of geopolymers and geopolymer concretes: A review
description	Geopolymers are green materials with three-dimensional silicon and aluminum tetrahedral structures that can be serving as environmentally friendly construction materials and therefore have the potential to contribute to sustainable development. In this paper, the mechanism and research progress regarding the carbonation resistance, structural fire resistance, corrosion resistance, permeation properties and frost resistance of geopolymer concretes are reviewed, and the main problems with the durability of geopolymer concretes are discussed. Geopolymers possess the superb mechanic property and their compression strengths could be higher than 100 MPa. Generally, the higher the GPC strength, the better the carbonation-resistant. GPC has excellent fire resistance, due to geopolymers are acquired an inorganic skeleton which is affected by the alkali content, alkali cation, and Si/Ai ratio. There are a large number of Al-O and Si-O structures in geopolymers. Geopolymers do not react with acids at room temperature and can be used to make acid-resistant materials. Besides, GPC owning low porosity volume shows good resistance to permeability. The freezing-thawing failure mechanism of geopolymer concretes is mainly based on hydrostatic and osmotic pressure theory. GPC has poor frost resistance, and the freezing-thawing limit is less than 75 times.
format	article
author	Lingyu Tian Dongpo He Jianing Zhao Hongguang Wang
author_facet	Lingyu Tian Dongpo He Jianing Zhao Hongguang Wang
author_sort	Lingyu Tian
title	Durability of geopolymers and geopolymer concretes: A review
title_short	Durability of geopolymers and geopolymer concretes: A review
title_full	Durability of geopolymers and geopolymer concretes: A review
title_fullStr	Durability of geopolymers and geopolymer concretes: A review
title_full_unstemmed	Durability of geopolymers and geopolymer concretes: A review
title_sort	durability of geopolymers and geopolymer concretes: a review
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/4002218ff13244c785ceaa0fc879a899
work_keys_str_mv	AT lingyutian durabilityofgeopolymersandgeopolymerconcretesareview AT dongpohe durabilityofgeopolymersandgeopolymerconcretesareview AT jianingzhao durabilityofgeopolymersandgeopolymerconcretesareview AT hongguangwang durabilityofgeopolymersandgeopolymerconcretesareview
_version_	1718371470175895552

Durability of geopolymers and geopolymer concretes: A review

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