| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials
|
| Presentation Title |
L-10: Activating Components in Activated Alkali Paste of Metakaolin and Ceramic Waste |
| Author(s) |
André Marques Junior, Lucas Cruz, Luis Tambara Júnior, Markssuel Marvila, Carlos Mauricio Vieira, Sergio Monteiro, Afonso Rangel Azevedo |
| On-Site Speaker (Planned) |
Afonso Rangel Azevedo |
| Abstract Scope |
The use of Portland cement occurs on a large scale in civil construction. However, its use causes a great environmental impact by emitting a high level of carbon dioxide in the atmosphere. An eco-friendly alternative is the development of alkali activated materials (AAM), as it is not necessary to calcin the precursor materials for use and because they have a high gain of initial mechanical strength. Furthermore, it is possible to value industrial residues rich in silica and alumina in the compositions of AAM such as ceramic waste (CW), in addition to making use of reactive materials such as metakaolin (MK). This work shows the results achieved in microstructural and compressive strength tests. The aim was to optimize the dosage in pastes with different compositions between precursor materials and activator solution. Research results indicate the effectiveness replacing 30% MK with CW when compared to a paste composed of 100% MK. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Composites, |