Characterization of metakaolin and study on early age mechanical strength of hybrid cementitious composites.
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| Title: | Characterization of metakaolin and study on early age mechanical strength of hybrid cementitious composites. |
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| Authors: | Ramli, Mahyuddin B.1 mahyudin@usm.my, Alonge, O. Richard1 Olarichy07@gmail.com |
| Source: | Construction & Building Materials. Sep2016, Vol. 121, p599-611. 13p. |
| Subjects: | Cement composites, Cement admixtures, X-ray diffraction, Kaolin, Seawater |
| Abstract: | In this study, the potency of using laboratory produced metakaolin as partial replacement of cement in the evolution of a hybrid cementitious composites (HCC) was investigated. Some chemical composition and phases of metakaolin were appraised with the aid of X-ray fluorescence (XRF) and X-ray diffraction. Particle size analyzer was used to study the physical properties of metakaolin produced in the laboratory from purified Kaolin. Early age mechanical strength and shrinkage properties of structural grade HCC developed by replacing fly ash in the original ECC M45 design with metakaolin (MK), colloidal nanosilica (CNS) and epoxy were examined. The designed mixtures consist of five mixtures with the control and base mix exposed to water and seawater. The control mix consists of only the fine aggregate and cement while the base mix consists of cement, fine aggregate, 10% MK and CNS with epoxy resin at 1% each by weight of the binder. Synthetic barchip fibres and some natural fibres namely, oil palm fruit bunch and coconut fibres were incorporated. The water cement ratio was designed as 0.30 for all mix ratios. The result reveals that the inclusion of MK, CNS and epoxy have a significant effect on the fresh properties of the HCC and at early age of 7, 28 and 90 days. The mechanical strengths were better improved than the standardized M45 ECC at these early ages. [ABSTRACT FROM AUTHOR] |
| Copyright of Construction & Building Materials is the property of Elsevier B.V. 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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 116691754 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Characterization of metakaolin and study on early age mechanical strength of hybrid cementitious composites. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ramli%2C+Mahyuddin+B%2E%22">Ramli, Mahyuddin B.</searchLink><relatesTo>1</relatesTo><i> mahyudin@usm.my</i><br /><searchLink fieldCode="AR" term="%22Alonge%2C+O%2E+Richard%22">Alonge, O. Richard</searchLink><relatesTo>1</relatesTo><i> Olarichy07@gmail.com</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Construction+%26+Building+Materials%22">Construction & Building Materials</searchLink>. Sep2016, Vol. 121, p599-611. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Cement+composites%22">Cement composites</searchLink><br /><searchLink fieldCode="DE" term="%22Cement+admixtures%22">Cement admixtures</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Kaolin%22">Kaolin</searchLink><br /><searchLink fieldCode="DE" term="%22Seawater%22">Seawater</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this study, the potency of using laboratory produced metakaolin as partial replacement of cement in the evolution of a hybrid cementitious composites (HCC) was investigated. Some chemical composition and phases of metakaolin were appraised with the aid of X-ray fluorescence (XRF) and X-ray diffraction. Particle size analyzer was used to study the physical properties of metakaolin produced in the laboratory from purified Kaolin. Early age mechanical strength and shrinkage properties of structural grade HCC developed by replacing fly ash in the original ECC M45 design with metakaolin (MK), colloidal nanosilica (CNS) and epoxy were examined. The designed mixtures consist of five mixtures with the control and base mix exposed to water and seawater. The control mix consists of only the fine aggregate and cement while the base mix consists of cement, fine aggregate, 10% MK and CNS with epoxy resin at 1% each by weight of the binder. Synthetic barchip fibres and some natural fibres namely, oil palm fruit bunch and coconut fibres were incorporated. The water cement ratio was designed as 0.30 for all mix ratios. The result reveals that the inclusion of MK, CNS and epoxy have a significant effect on the fresh properties of the HCC and at early age of 7, 28 and 90 days. The mechanical strengths were better improved than the standardized M45 ECC at these early ages. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Construction & Building Materials is the property of Elsevier B.V. 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.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.conbuildmat.2016.06.039 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 599 Subjects: – SubjectFull: Cement composites Type: general – SubjectFull: Cement admixtures Type: general – SubjectFull: X-ray diffraction Type: general – SubjectFull: Kaolin Type: general – SubjectFull: Seawater Type: general Titles: – TitleFull: Characterization of metakaolin and study on early age mechanical strength of hybrid cementitious composites. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ramli, Mahyuddin B. – PersonEntity: Name: NameFull: Alonge, O. Richard IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 09 Text: Sep2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 09500618 Numbering: – Type: volume Value: 121 Titles: – TitleFull: Construction & Building Materials Type: main |
| ResultId | 1 |
