Review on chloride transport in alkali-activated materials: Role of precursors, activators and admixtures
Article
Article Title | Review on chloride transport in alkali-activated materials: Role of precursors, activators and admixtures |
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ERA Journal ID | 3470 |
Article Category | Article |
Authors | Zhang, Jingxiao, Ma, Yuwei, Hu, Jie, Wang, Hao and Zhang, Zuhua |
Journal Title | Construction and Building Materials |
Journal Citation | 328, pp. 1-24 |
Article Number | 127081 |
Number of Pages | 24 |
Year | 2022 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0950-0618 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.conbuildmat.2022.127081 |
Web Address (URL) | https://www.sciencedirect.com/science/article/abs/pii/S0950061822007644 |
Abstract | The development of alkali-activated materials (AAMs) to replace ordinary Portland cement (OPC) under chloride-containing environments has been widely investigated by academia and industry for decades. Due to varied mix proportions and parameters applied, studies on the chloride resistance of AAMs are inconsistent and require to be systematically analysed. In this review, the existing knowledge about chloride transport in AAMs is systematically reviewed. Chloride transport mechanisms in AAMs and influencing parameters are discussed. Different testing methods are evaluated and the feasibility of AAMs to replace OPC is demonstrated. Roles of different precursors, activators and admixtures on the phase evolution, pore structure, chloride binding capacity and pore solution are discussed in detail. The types and ratios of precursors, activators and admixtures are recommended. Finally, the limitations of existing research and possible future research directions are proposed. |
Keywords | Activator; Admixture; Alkali-activated materials; Chloride resistance; Chloride transport; Geopolymer; Precursor |
ANZSRC Field of Research 2020 | 400505. Construction materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Funder | National Natural Science Foundation of China |
Byline Affiliations | Centre for Future Materials |
Guangzhou University, China | |
South China University of Technology, China | |
Hunan University, China |
https://research.usq.edu.au/item/yy388/review-on-chloride-transport-in-alkali-activated-materials-role-of-precursors-activators-and-admixtures
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