Effect of metakaolin replaced granulated blast furnace slag on fresh and early strength properties of geopolymer mortar
We report the effect of metakaolin (MK) substituted granulated blast furnace slag (GBFS) on the early strength of geopolymer mortars (GPMs) for potential repair applications. Such GPMs were prepared by activating MK (0–15%) replaced GBFS. Solution concentrations ratio of SiO2:Na2O were varied in the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2018-12-01
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| Series: | Ain Shams Engineering Journal |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2090447916301629 |
| _version_ | 1819087693210976256 |
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| author | Ghasan F. Huseien Jahangir Mirza Mohammad Ismail S.K. Ghoshal Mohd Azreen Mohd Ariffin |
| author_facet | Ghasan F. Huseien Jahangir Mirza Mohammad Ismail S.K. Ghoshal Mohd Azreen Mohd Ariffin |
| author_sort | Ghasan F. Huseien |
| collection | DOAJ |
| description | We report the effect of metakaolin (MK) substituted granulated blast furnace slag (GBFS) on the early strength of geopolymer mortars (GPMs) for potential repair applications. Such GPMs were prepared by activating MK (0–15%) replaced GBFS. Solution concentrations ratio of SiO2:Na2O were varied in the range of 1.08–1.26 to achieve appropriate geopolymerization. Various proportion of Na2O:dry binder (7, 8, 9, 11 and 13%) were used. The mass ratios of sodium silicate to sodium hydroxide (NS:NH) and the binder to fine aggregate (B:A) were fixed to 3.0 and 0.90, respectively. The mechanical properties of the synthesized GPMs were determined at ambient temperature after 24 h of casting and curing. It is demonstrated that 5% of MK replaced GBFS with 1.16 of SiO2:Na2O and 0.40 of S:B achieved an early compressive strength as much as 47.84 MPa at 24 h. The bond strength results exhibited the prospect of such GPMs as suitable alternative repair material. Keywords: Geopolymer, Metakaolin, SiO2:Na2O, Compressive strength, Bond strength |
| first_indexed | 2024-12-21T21:40:12Z |
| format | Article |
| id | doaj.art-0f384638f672471cbaf8ec0d9e6c3242 |
| institution | Directory Open Access Journal |
| issn | 2090-4479 |
| language | English |
| last_indexed | 2024-12-21T21:40:12Z |
| publishDate | 2018-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ain Shams Engineering Journal |
| spelling | doaj.art-0f384638f672471cbaf8ec0d9e6c32422022-12-21T18:49:22ZengElsevierAin Shams Engineering Journal2090-44792018-12-019415571566Effect of metakaolin replaced granulated blast furnace slag on fresh and early strength properties of geopolymer mortarGhasan F. Huseien0Jahangir Mirza1Mohammad Ismail2S.K. Ghoshal3Mohd Azreen Mohd Ariffin4Department of Structure and Materials, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia; Corresponding author.Department of Structure and Materials, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia; Department of Materials Science, Research Institute of Hydro-Quebec, 1800 Mte Ste. Julie, Varennes, Quebec J3X 1S1, CanadaDepartment of Structure and Materials, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, MalaysiaDepartment of Physics, AOMRG, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, MalaysiaDepartment of Structure and Materials, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, MalaysiaWe report the effect of metakaolin (MK) substituted granulated blast furnace slag (GBFS) on the early strength of geopolymer mortars (GPMs) for potential repair applications. Such GPMs were prepared by activating MK (0–15%) replaced GBFS. Solution concentrations ratio of SiO2:Na2O were varied in the range of 1.08–1.26 to achieve appropriate geopolymerization. Various proportion of Na2O:dry binder (7, 8, 9, 11 and 13%) were used. The mass ratios of sodium silicate to sodium hydroxide (NS:NH) and the binder to fine aggregate (B:A) were fixed to 3.0 and 0.90, respectively. The mechanical properties of the synthesized GPMs were determined at ambient temperature after 24 h of casting and curing. It is demonstrated that 5% of MK replaced GBFS with 1.16 of SiO2:Na2O and 0.40 of S:B achieved an early compressive strength as much as 47.84 MPa at 24 h. The bond strength results exhibited the prospect of such GPMs as suitable alternative repair material. Keywords: Geopolymer, Metakaolin, SiO2:Na2O, Compressive strength, Bond strengthhttp://www.sciencedirect.com/science/article/pii/S2090447916301629 |
| spellingShingle | Ghasan F. Huseien Jahangir Mirza Mohammad Ismail S.K. Ghoshal Mohd Azreen Mohd Ariffin Effect of metakaolin replaced granulated blast furnace slag on fresh and early strength properties of geopolymer mortar Ain Shams Engineering Journal |
| title | Effect of metakaolin replaced granulated blast furnace slag on fresh and early strength properties of geopolymer mortar |
| title_full | Effect of metakaolin replaced granulated blast furnace slag on fresh and early strength properties of geopolymer mortar |
| title_fullStr | Effect of metakaolin replaced granulated blast furnace slag on fresh and early strength properties of geopolymer mortar |
| title_full_unstemmed | Effect of metakaolin replaced granulated blast furnace slag on fresh and early strength properties of geopolymer mortar |
| title_short | Effect of metakaolin replaced granulated blast furnace slag on fresh and early strength properties of geopolymer mortar |
| title_sort | effect of metakaolin replaced granulated blast furnace slag on fresh and early strength properties of geopolymer mortar |
| url | http://www.sciencedirect.com/science/article/pii/S2090447916301629 |
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