| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2024: Process-Structure-Property Relations and New Technologies
|
| Presentation Title |
Use of Red Mud in Soil Stabilization for Pavement Through Alkali Activation |
| Author(s) |
Sarah Souza Silva, Beatryz Cardoso Mendes, Taciano Oliveira Silva, Emerson Cordeiro Lopes, Flávio Antônio Ferreira, Leonardo Gonçalves Pedroti |
| On-Site Speaker (Planned) |
Leonardo Gonçalves Pedroti |
| Abstract Scope |
The concern over the amount of solid waste generated in aluminum production has led to studies on the reuse of this waste in various types of construction materials. In this regard, this research investigated the use of red mud in soil stabilization for pavement through alkali activation. Mixtures were produced with tropical soil, different percentages of red mud (10%, 20%, 30%, and 40%) and alkaline solutions based on NaOH (6, 8, and 10 mol/L). Compaction curves were determined for each proportion of red mud, obtaining values for optimum moisture content and maximum density. Posteriorly, the compressive strenght of the mixtures were evaluated. There was an significant improvement on the mechanical strength of the samples with the replacement of up to 20% of red mud, with results exceeding 300% when compared to the mixtures with no addition of the waste. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Aluminum, Sustainability |