ArticleMaterials (Basel, Switzerland)2022
Fracture Behavior of Long Fiber Reinforced Geopolymer Composites at Different Operating Temperatures.
Article in Materials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Obsidian: A Pioneering Natural Resource for Green, Fire-Resistant Composite Material Industries.ACS omega · 2025Article
- Eco-Friendly Coal Gangue and/or Metakaolin-Based Lightweight Geopolymer with the Addition of Waste Glass.Materials (Basel, Switzerland) · 2023Article
- Life Cycle Assessment of the Sustainability of Alkali-Activated Binders.Biomimetics (Basel, Switzerland) · 2023Article
- Properties of 3D Printed Concrete-Geopolymer Hybrids Reinforced with Aramid Roving.Materials (Basel, Switzerland) · 2022Article
- 3D Printing of Concrete-Geopolymer Hybrids.Materials (Basel, Switzerland) · 2022Article
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Authors and funding
8 authors.
Funding
Abstract
The aim of this article was to analyze the fracture behavior of geopolymer composites based on fly ash or metakaolin with fine aggregate and river sand, with three types of reinforcement: glass, carbon, and aramid fiber, at three different temperatures, approximately: 3 °C, 20 °C, and 50 °C. The temperatures were selected as a future work temperature for composites designed for additive manufacturing technology. The main research method used was bending strength tests in accordance with European standard EN 12390-5. The results showed that the addition of fibers significantly improved the bending strength of all composites. The best results at room temperature were achieved for the metakaolin-based composites and sand reinforced with 2% wt. aramid fiber-17 MPa. The results at 50 °C showed a significant decrease in the bending strength for almost all compositions, which are unexpected results, taking into account the fact that geopolymers are described as materials dedicated to working at high temperatures. The test at low temperature (ca. 3 °C) showed an increase in the bending strength for almost all compositions. The grounds of this type of behavior have not been clearly stated; however, the likely causes of this are discussed.
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