Characteristic properties of fly ash-based self-compacting geopolymer mortars with synthetic wollastonite microfiber produced from silica and calcite
This study investigated the fresh, physical, and mechanical properties of self-compacting geopolymer mortars (SCGs) with synthetic wollastonite microfiber (SWM). SCGs were designed with Class F fly ash (FA) as a binder by activating it with Na2SiO3 and NaOH solutions. First, SWM was produced in the...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2023-02-01
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| Series: | Materiales de Construccion |
| Subjects: | |
| Online Access: | https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/3480 |
| _version_ | 1797866527748259840 |
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| author | H.Ö. Öz D. Ünsal |
| author_facet | H.Ö. Öz D. Ünsal |
| author_sort | H.Ö. Öz |
| collection | DOAJ |
| description |
This study investigated the fresh, physical, and mechanical properties of self-compacting geopolymer mortars (SCGs) with synthetic wollastonite microfiber (SWM). SCGs were designed with Class F fly ash (FA) as a binder by activating it with Na2SiO3 and NaOH solutions. First, SWM was produced in the laboratory. Alkali ratios were determined as 1.5, 2.0, and 2.5, whereas SWM percentages were utilized as 0%, 4%, 8%, and 12% by weight of the binder. After geopolymer mortars were cured at 80 oC and 100 oC for 24 hours, respectively, they were kept at room temperature until testing age. The compressive strength, flexural strength, ultrasonic pulse velocity, dynamic modulus of elasticity, water sorptivity coefficient values, and physical characteristics of SCGs were tested at the end of the 28th day. The highest compressive strength value was obtained as 28.9 MPa for SCG-1.5-8 cured at 100 oC, while 6.5 MPa was measured as the highest flexural strength for SCG-2-12 cured at 80 oC.
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| first_indexed | 2024-04-09T23:25:34Z |
| format | Article |
| id | doaj.art-ca95344f7250402f8746f9902d7cac50 |
| institution | Directory Open Access Journal |
| issn | 0465-2746 1988-3226 |
| language | English |
| last_indexed | 2024-04-09T23:25:34Z |
| publishDate | 2023-02-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Materiales de Construccion |
| spelling | doaj.art-ca95344f7250402f8746f9902d7cac502023-03-21T10:59:59ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262023-02-017334910.3989/mc.2023.296322Characteristic properties of fly ash-based self-compacting geopolymer mortars with synthetic wollastonite microfiber produced from silica and calciteH.Ö. Öz0D. Ünsal1Department of Civil Engineering, Niğde Ömer Halisdemir UniversityDepartment of Civil Engineering, Niğde Ömer Halisdemir University This study investigated the fresh, physical, and mechanical properties of self-compacting geopolymer mortars (SCGs) with synthetic wollastonite microfiber (SWM). SCGs were designed with Class F fly ash (FA) as a binder by activating it with Na2SiO3 and NaOH solutions. First, SWM was produced in the laboratory. Alkali ratios were determined as 1.5, 2.0, and 2.5, whereas SWM percentages were utilized as 0%, 4%, 8%, and 12% by weight of the binder. After geopolymer mortars were cured at 80 oC and 100 oC for 24 hours, respectively, they were kept at room temperature until testing age. The compressive strength, flexural strength, ultrasonic pulse velocity, dynamic modulus of elasticity, water sorptivity coefficient values, and physical characteristics of SCGs were tested at the end of the 28th day. The highest compressive strength value was obtained as 28.9 MPa for SCG-1.5-8 cured at 100 oC, while 6.5 MPa was measured as the highest flexural strength for SCG-2-12 cured at 80 oC. https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/3480Alkali ratioCuring temperatureSelf-compacting geopolymerSynthetic wollastonite microfiber |
| spellingShingle | H.Ö. Öz D. Ünsal Characteristic properties of fly ash-based self-compacting geopolymer mortars with synthetic wollastonite microfiber produced from silica and calcite Materiales de Construccion Alkali ratio Curing temperature Self-compacting geopolymer Synthetic wollastonite microfiber |
| title | Characteristic properties of fly ash-based self-compacting geopolymer mortars with synthetic wollastonite microfiber produced from silica and calcite |
| title_full | Characteristic properties of fly ash-based self-compacting geopolymer mortars with synthetic wollastonite microfiber produced from silica and calcite |
| title_fullStr | Characteristic properties of fly ash-based self-compacting geopolymer mortars with synthetic wollastonite microfiber produced from silica and calcite |
| title_full_unstemmed | Characteristic properties of fly ash-based self-compacting geopolymer mortars with synthetic wollastonite microfiber produced from silica and calcite |
| title_short | Characteristic properties of fly ash-based self-compacting geopolymer mortars with synthetic wollastonite microfiber produced from silica and calcite |
| title_sort | characteristic properties of fly ash based self compacting geopolymer mortars with synthetic wollastonite microfiber produced from silica and calcite |
| topic | Alkali ratio Curing temperature Self-compacting geopolymer Synthetic wollastonite microfiber |
| url | https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/3480 |
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