Insight into the Micro Evolution of Backfill Paste Prepared with Modified Gangue as Supplementary Cementitious Material: Dissolution and Hydration Mechanisms.
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| Title: | Insight into the Micro Evolution of Backfill Paste Prepared with Modified Gangue as Supplementary Cementitious Material: Dissolution and Hydration Mechanisms. |
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| Authors: | Huo, Binbin1 (AUTHOR) huobinbin@cumt.edu.cn, Zhang, Jixiong1 (AUTHOR) cumtzjxiong@163.com, Li, Meng2 (AUTHOR) limeng77521@126.com, Guo, Qiang1 (AUTHOR) |
| Source: | Materials (1996-1944). Oct2023, Vol. 16 Issue 19, p6609. 16p. |
| Subjects: | Microevolution, Particle size distribution, Hydration, Compressive strength, Formic acid, Portland cement, Paste, Dry matter in animal nutrition |
| Abstract: | Gangue-based backfill cementitious materials (BCM) are widely applied due to their low CO2 footprint, while the application is restricted by gangue's low reactivity. In this study, dry chemical modification was developed to modify the gangue, and multiple characterized approaches were used to characterize the dissolution property, mineral composition, and particle size distribution of modified gangue (MCG), as well as the compressive strength and microstructure of BCM. The findings show that the residue weight of MCG stabilized at 2 wt.% of formic acid, and the modification reduces the kaolinite and calcite, resulting in smaller particles. Additionally, the three days compressive strength of the BCM made with MCG was improved from 0.3 MPa to 0.6 MPa. Attributed to the increased reactivity of MCG, it was found that the dissolution weight increased by 2.13%. This study offers a novel method for activating gangue and a new kind of MCG-prepared BCM, which makes a significant contribution towards achieving the UN Sustainable Development Goals. [ABSTRACT FROM AUTHOR] |
| Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 172982904 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Insight into the Micro Evolution of Backfill Paste Prepared with Modified Gangue as Supplementary Cementitious Material: Dissolution and Hydration Mechanisms. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Huo%2C+Binbin%22">Huo, Binbin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> huobinbin@cumt.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Jixiong%22">Zhang, Jixiong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> cumtzjxiong@163.com</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Meng%22">Li, Meng</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> limeng77521@126.com</i><br /><searchLink fieldCode="AR" term="%22Guo%2C+Qiang%22">Guo, Qiang</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Oct2023, Vol. 16 Issue 19, p6609. 16p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Microevolution%22">Microevolution</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+size+distribution%22">Particle size distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Hydration%22">Hydration</searchLink><br /><searchLink fieldCode="DE" term="%22Compressive+strength%22">Compressive strength</searchLink><br /><searchLink fieldCode="DE" term="%22Formic+acid%22">Formic acid</searchLink><br /><searchLink fieldCode="DE" term="%22Portland+cement%22">Portland cement</searchLink><br /><searchLink fieldCode="DE" term="%22Paste%22">Paste</searchLink><br /><searchLink fieldCode="DE" term="%22Dry+matter+in+animal+nutrition%22">Dry matter in animal nutrition</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Gangue-based backfill cementitious materials (BCM) are widely applied due to their low CO2 footprint, while the application is restricted by gangue's low reactivity. In this study, dry chemical modification was developed to modify the gangue, and multiple characterized approaches were used to characterize the dissolution property, mineral composition, and particle size distribution of modified gangue (MCG), as well as the compressive strength and microstructure of BCM. The findings show that the residue weight of MCG stabilized at 2 wt.% of formic acid, and the modification reduces the kaolinite and calcite, resulting in smaller particles. Additionally, the three days compressive strength of the BCM made with MCG was improved from 0.3 MPa to 0.6 MPa. Attributed to the increased reactivity of MCG, it was found that the dissolution weight increased by 2.13%. This study offers a novel method for activating gangue and a new kind of MCG-prepared BCM, which makes a significant contribution towards achieving the UN Sustainable Development Goals. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=172982904 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/ma16196609 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 6609 Subjects: – SubjectFull: Microevolution Type: general – SubjectFull: Particle size distribution Type: general – SubjectFull: Hydration Type: general – SubjectFull: Compressive strength Type: general – SubjectFull: Formic acid Type: general – SubjectFull: Portland cement Type: general – SubjectFull: Paste Type: general – SubjectFull: Dry matter in animal nutrition Type: general Titles: – TitleFull: Insight into the Micro Evolution of Backfill Paste Prepared with Modified Gangue as Supplementary Cementitious Material: Dissolution and Hydration Mechanisms. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Huo, Binbin – PersonEntity: Name: NameFull: Zhang, Jixiong – PersonEntity: Name: NameFull: Li, Meng – PersonEntity: Name: NameFull: Guo, Qiang IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 19961944 Numbering: – Type: volume Value: 16 – Type: issue Value: 19 Titles: – TitleFull: Materials (1996-1944) Type: main |
| ResultId | 1 |
