| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials
|
| Presentation Title |
L-17: Characterization of Açaí Fibers (Euterpe Oleracea Mart.) for Application in Cement Composites |
| Author(s) |
Tulane Rodrigues Silva, Paulo Ricardo de Matos, Luis Urbano Tambara Júnior, Markssuel Teixeira Marvila, Sergio Neves Monteiro, Afonso Rangel Azevedo |
| On-Site Speaker (Planned) |
Afonso Rangel Azevedo |
| Abstract Scope |
The waste generated by agro-industry has been highlighted through reuse in the construction sector, including açaí fibers. Natural fibers have been used in the production of alternative materials, such as cement-based composites. The objective of this work was to characterize the açaí fibers and evaluate the choice of the adequate chemical treatment to improve the fiber-matrix adhesion in view of its application in mortars. Chemical treatments (NaOH, CaOH2) were performed for 60min and technological tests for chemical (DRX, EDX) and morphological (SEM) characterization of the raw and treated fibers. The results showed that the fibers have an irregular shape and lignin and hemicellulose networks on their surface and a higher presence of silica. As for the fiber treatment, NaOH was the most important, which promoted the removal of most of the amorphous constituents such as hemicellulose, lignin and waxes of the fibers, also causing an increase in their roughness |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Characterization, |