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http://bura.brunel.ac.uk/handle/2438/27105
Title: | Laboratory-grade vs. industrial-grade NaOH as alkaline activator: The properties of coal fly ash based-alkaline activated material for construction |
Authors: | Suwan, T Wong, HS Fan, M Jitsangiam, P Thongchua, H Chindaprasirt, P |
Keywords: | alkaline-activated material;industrial-grade activator;laboratory-grade activator;production cost;properties and microstructure |
Issue Date: | 26-Aug-2023 |
Publisher: | Elsevier |
Citation: | Suwan, T. (2023) 'Laboratory-grade vs. industrial-grade NaOH as alkaline activator: The properties of coal fly ash based-alkaline activated material for construction', Case Studies in Construction Materials, 19, e02427, pp. 1 - 14. doi: 10.1016/j.cscm.2023.e02427. |
Abstract: | Copyright © 2023 The Author(s). Alkaline-activated materials (AAM) are potentially low-carbon alternative binders for the cement industry. Most research studies related to AAM have been performed with high-purity laboratory-grade NaOH alkaline activators (Lab-grade). Gaining confidence in AAM beyond the laboratory scale in real applications remains a major challenge. To make this prospect more realistic, the viability of low-purity industrial-grade (Ind.-grade) and local no-grade alkaline activators was investigated. The strength results of Ind.-grade AAM were 15–20% lower than those of Lab-grade AAM. The purity of the Ind.-grade activator should be at least 98% to achieve the performance of Lab-grade AAM. The production cost of Ind.-grade AAM was 75–85% lower than that of Lab-grade AAM at the same activator concentration. It should be noted that the use of no-grade NaOH is not recommended for engineering purposes due to its uncertain quality and low purity. The combined benefits of low cost and high availability of Ind.-grade activators are expected to enhance the commercial viability of AAM as a sustainable alternative construction material for field applications. |
Description: | Case study. Data Availability: Data will be made available on request. |
URI: | https://bura.brunel.ac.uk/handle/2438/27105 |
DOI: | https://doi.org/10.1016/j.cscm.2023.e02427 |
Other Identifiers: | ORCID iDs: Teewara Suwan https://orcid.org/0000-0001-7313-2950; Mizi Fan https://orcid.org/0000-0002-6609-3110. e02427 |
Appears in Collections: | Dept of Civil and Environmental Engineering Research Papers |
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FullText.pdf | Copyright © 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/). | 7.86 MB | Adobe PDF | View/Open |
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