About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Characterization of Minerals, Metals and Materials 2025: In-Situ Characterization Techniques
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Presentation Title |
H-29: Rheological and Mechanical Viability of Alkali-Activated Pastes for Oil Well Application |
Author(s) |
Carlos Mauricio Vieira , Sheila Silva, Madeleing , Lucas Cruz, Sergio Monteiro, Afonso Azevedo |
On-Site Speaker (Planned) |
Afonso Azevedo |
Abstract Scope |
In this study, a methodology was implemented to enable binary mixtures consisting of metakaolin (MK) and blast furnace slag (BFS), with certain additives. Complementing its hardening time with the help of the mini-slump test during the first 4 hours. Additionally, evaluating its compressive strength after 24 hours. As a beginning point, the plastic viscosity limit for the mixtures was defined, as the limit of their pumpability, at 0.50Pa.s previously defining an activating solution that adjusted to half of this value so that after dry material addition the limit was reached. Subsequently, different proportions were made between MK and BFS and placed at rheometer, performing a rotation scan, and determining the viscosities of the systems. Finally, the samples were molded into cylinders and cured at 27°C and 52°C and ruptured after 24 hours. The results were compared with the standard criteria and indicated which mixtures are convenient for a given application. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Composites, |