Mechanical Properties of Wood Fiber Reinforced Geopolymer Composites with Sand Addition
Fly ash-based geopolymers can be considered as a greener alternative to ordinary Portland cement, featuring comparable properties and cost yet with lower CO2 emissions. New wood fiber reinforced geopolymer composites with sand addition (WFSGC) have been synthesized at room temperature by mixing powd...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-02-01
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| Series: | Journal of Natural Fibers |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/15440478.2019.1621792 |
| _version_ | 1797680223650578432 |
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| author | Gabriel Furtos Laura Silaghi-Dumitrescu Petru Pascuta Codruta Sarosi Kinga Korniejenko |
| author_facet | Gabriel Furtos Laura Silaghi-Dumitrescu Petru Pascuta Codruta Sarosi Kinga Korniejenko |
| author_sort | Gabriel Furtos |
| collection | DOAJ |
| description | Fly ash-based geopolymers can be considered as a greener alternative to ordinary Portland cement, featuring comparable properties and cost yet with lower CO2 emissions. New wood fiber reinforced geopolymer composites with sand addition (WFSGC) have been synthesized at room temperature by mixing powder (fly ash, sand and randomly reinforced wood fiber) with sodium silicate and sodium hydroxide as alkaline activators. New WFSGC were cured at 90°C for 24 h. The design and investigation of WFSGC were based on a fix 5 wt.% percentage of sand, with variable wood fiber (5, 10, 15, 20, 25, 30 and 35 wt.%) and fly ash percentages. These WFSGC showed decreasing mechanical properties with increasing wood fiber addition as measured by the compressive strength at the cylindrical test (21.76–42.52 MPa), the compressive strength at the cubic test (31.79–39.17 MPa), the force load at upper yield at the cylindrical test (1.27–3.58KN), the flexural strength (7–10.76 MPa), compressive modulus at the cylindrical test (590,75–1021.17 MPa), the compressive modulus at cubic test (787.92–1059.79 MPa) and the flexural modulus (298.03–737.83 MPa). The density of WFRGC decreases with the addition of wood fiber (1.49–1.71 g/cm3). WFSGC with addition wood fibers up to 15 wt.% could be the limit for a promising green material for construction. |
| first_indexed | 2024-03-11T23:26:36Z |
| format | Article |
| id | doaj.art-6a140d071e644ed8ae43a0a120288df8 |
| institution | Directory Open Access Journal |
| issn | 1544-0478 1544-046X |
| language | English |
| last_indexed | 2024-03-11T23:26:36Z |
| publishDate | 2021-02-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Natural Fibers |
| spelling | doaj.art-6a140d071e644ed8ae43a0a120288df82023-09-20T12:50:16ZengTaylor & Francis GroupJournal of Natural Fibers1544-04781544-046X2021-02-0118228529610.1080/15440478.2019.16217921621792Mechanical Properties of Wood Fiber Reinforced Geopolymer Composites with Sand AdditionGabriel Furtos0Laura Silaghi-Dumitrescu1Petru Pascuta2Codruta Sarosi3Kinga Korniejenko4Babes-Bolyai UniversityBabes-Bolyai UniversityTechnical UniversityBabes-Bolyai UniversityCracow University of TechnologyFly ash-based geopolymers can be considered as a greener alternative to ordinary Portland cement, featuring comparable properties and cost yet with lower CO2 emissions. New wood fiber reinforced geopolymer composites with sand addition (WFSGC) have been synthesized at room temperature by mixing powder (fly ash, sand and randomly reinforced wood fiber) with sodium silicate and sodium hydroxide as alkaline activators. New WFSGC were cured at 90°C for 24 h. The design and investigation of WFSGC were based on a fix 5 wt.% percentage of sand, with variable wood fiber (5, 10, 15, 20, 25, 30 and 35 wt.%) and fly ash percentages. These WFSGC showed decreasing mechanical properties with increasing wood fiber addition as measured by the compressive strength at the cylindrical test (21.76–42.52 MPa), the compressive strength at the cubic test (31.79–39.17 MPa), the force load at upper yield at the cylindrical test (1.27–3.58KN), the flexural strength (7–10.76 MPa), compressive modulus at the cylindrical test (590,75–1021.17 MPa), the compressive modulus at cubic test (787.92–1059.79 MPa) and the flexural modulus (298.03–737.83 MPa). The density of WFRGC decreases with the addition of wood fiber (1.49–1.71 g/cm3). WFSGC with addition wood fibers up to 15 wt.% could be the limit for a promising green material for construction.http://dx.doi.org/10.1080/15440478.2019.1621792wood fiberfly ashsandgeopolymer composites |
| spellingShingle | Gabriel Furtos Laura Silaghi-Dumitrescu Petru Pascuta Codruta Sarosi Kinga Korniejenko Mechanical Properties of Wood Fiber Reinforced Geopolymer Composites with Sand Addition Journal of Natural Fibers wood fiber fly ash sand geopolymer composites |
| title | Mechanical Properties of Wood Fiber Reinforced Geopolymer Composites with Sand Addition |
| title_full | Mechanical Properties of Wood Fiber Reinforced Geopolymer Composites with Sand Addition |
| title_fullStr | Mechanical Properties of Wood Fiber Reinforced Geopolymer Composites with Sand Addition |
| title_full_unstemmed | Mechanical Properties of Wood Fiber Reinforced Geopolymer Composites with Sand Addition |
| title_short | Mechanical Properties of Wood Fiber Reinforced Geopolymer Composites with Sand Addition |
| title_sort | mechanical properties of wood fiber reinforced geopolymer composites with sand addition |
| topic | wood fiber fly ash sand geopolymer composites |
| url | http://dx.doi.org/10.1080/15440478.2019.1621792 |
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