| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2025: In-Situ Characterization Techniques
|
| Presentation Title |
Durability Evaluation of Cement-Based Composites Reinforced With Guaruman Fibers |
| Author(s) |
Thuany Espírito Santo de Lima, Afonso Rangel Garcez Azevedo, Sergio Neves Monteiro |
| On-Site Speaker (Planned) |
Thuany Espírito Santo de Lima |
| Abstract Scope |
The use of natural fibers in cementitious composites still presents as a limitation their durability in the alkaline matrix. Some treatments on the fiber are carried out in order to reduce its degradation in the matrix, such as surface treatment with NaOH. The objective of this study is to evaluate the durability of guaruman fiber (Ischinosiphon koern) with surface treatment with NaOH as a possible reinforcement for coating mortars. For this, composites were manufactured with and without treatment in proportions of 0% (reference), 0.5%, 1% and 1.5% in relation to the mass of Portland cement with a ratio of 1:3:0.66 ( cement:sand:water/cement factor). The experimental program included testing with durabilidade wetting and drying. Based on the results obtained, it was found that matrices containing 0.5% and 1% additions of fibers were those that showed the best performance, suggesting that guaruman is a promising new material for reinforcement in coating mortars. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, |