Mechanical and Fracture Properties of Long Fiber Reinforced Geopolymer Composites
The aim of the article is to analyze the structure and mechanical properties in terms of the cracking mechanics of geopolymer composites based on fly ash and river sand, as well as metakaolin and river sand with three types of reinforcement material: glass fiber, carbon fiber, and aramid fiber, in t...
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doaj-00b40714b7d34b2db7571142aa3fc24d2021-09-26T00:36:05ZengMDPI AGMaterials1996-19442021-09-01145183518310.3390/ma14185183Mechanical and Fracture Properties of Long Fiber Reinforced Geopolymer CompositesKinga Korniejenko0Beata Figiela1Krzysztof Miernik2Celina Ziejewska3Joanna Marczyk4Marek Hebda5An Cheng6Wei-Ting Lin7Faculty of Materials Engineering and Physics, Cracow University of Technology, al. Jana Pawła II 37, 31-864 Kraków, PolandFaculty of Materials Engineering and Physics, Cracow University of Technology, al. Jana Pawła II 37, 31-864 Kraków, PolandFaculty of Materials Engineering and Physics, Cracow University of Technology, al. Jana Pawła II 37, 31-864 Kraków, PolandFaculty of Materials Engineering and Physics, Cracow University of Technology, al. Jana Pawła II 37, 31-864 Kraków, PolandFaculty of Materials Engineering and Physics, Cracow University of Technology, al. Jana Pawła II 37, 31-864 Kraków, PolandFaculty of Materials Engineering and Physics, Cracow University of Technology, al. Jana Pawła II 37, 31-864 Kraków, PolandDepartment of Civil Engineering, National Ilan University, No. 1, Sec. 1, Shennong Rd., Yilan City 26041, TaiwanDepartment of Civil Engineering, National Ilan University, No. 1, Sec. 1, Shennong Rd., Yilan City 26041, TaiwanThe aim of the article is to analyze the structure and mechanical properties in terms of the cracking mechanics of geopolymer composites based on fly ash and river sand, as well as metakaolin and river sand with three types of reinforcement material: glass fiber, carbon fiber, and aramid fiber, in terms of their use in additive manufacturing. Geopolymer composites were reinforced with fibers in a volume ratio of 0.5%, 1.0%, and 2.0%. Subsequently, these samples were subjected to bending strength tests in accordance with the European standard EN 12390-3. The addition of fibers significantly improved the bending strength of all composites made of metakaolin and sand. The reinforcement with aramid fiber in the amount of 2.0% resulted in more than a 3-fold increase in strength compared to the reinforcement-free composites. An analysis of the morphology of the fibers was carried out on the basis of photos taken from an electron microscope. The correct addition of fibers changes the nature of the fracture from brittle to more ductile and reduces the number of cracks in the material.https://www.mdpi.com/1996-1944/14/18/5183geopolymer compositefiber reinforcementadditive technologylong fiber |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kinga Korniejenko Beata Figiela Krzysztof Miernik Celina Ziejewska Joanna Marczyk Marek Hebda An Cheng Wei-Ting Lin |
spellingShingle |
Kinga Korniejenko Beata Figiela Krzysztof Miernik Celina Ziejewska Joanna Marczyk Marek Hebda An Cheng Wei-Ting Lin Mechanical and Fracture Properties of Long Fiber Reinforced Geopolymer Composites Materials geopolymer composite fiber reinforcement additive technology long fiber |
author_facet |
Kinga Korniejenko Beata Figiela Krzysztof Miernik Celina Ziejewska Joanna Marczyk Marek Hebda An Cheng Wei-Ting Lin |
author_sort |
Kinga Korniejenko |
title |
Mechanical and Fracture Properties of Long Fiber Reinforced Geopolymer Composites |
title_short |
Mechanical and Fracture Properties of Long Fiber Reinforced Geopolymer Composites |
title_full |
Mechanical and Fracture Properties of Long Fiber Reinforced Geopolymer Composites |
title_fullStr |
Mechanical and Fracture Properties of Long Fiber Reinforced Geopolymer Composites |
title_full_unstemmed |
Mechanical and Fracture Properties of Long Fiber Reinforced Geopolymer Composites |
title_sort |
mechanical and fracture properties of long fiber reinforced geopolymer composites |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2021-09-01 |
description |
The aim of the article is to analyze the structure and mechanical properties in terms of the cracking mechanics of geopolymer composites based on fly ash and river sand, as well as metakaolin and river sand with three types of reinforcement material: glass fiber, carbon fiber, and aramid fiber, in terms of their use in additive manufacturing. Geopolymer composites were reinforced with fibers in a volume ratio of 0.5%, 1.0%, and 2.0%. Subsequently, these samples were subjected to bending strength tests in accordance with the European standard EN 12390-3. The addition of fibers significantly improved the bending strength of all composites made of metakaolin and sand. The reinforcement with aramid fiber in the amount of 2.0% resulted in more than a 3-fold increase in strength compared to the reinforcement-free composites. An analysis of the morphology of the fibers was carried out on the basis of photos taken from an electron microscope. The correct addition of fibers changes the nature of the fracture from brittle to more ductile and reduces the number of cracks in the material. |
topic |
geopolymer composite fiber reinforcement additive technology long fiber |
url |
https://www.mdpi.com/1996-1944/14/18/5183 |
work_keys_str_mv |
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