Resistencia al ataque ácido de matrices activadas alcalinamente de piedra pómez y polvo de ladrillo fabricados con activadores químicos comerciales.
Geopolymers, as a sustainable alternative to conventional cement, offer advantages such as reduced carbon footprint, higher strength and durability, and the ability to incorporate industrial waste. However, they face challenges in optimization, regulations, and industry acceptance. This study evalua...
Furkejuvvon:
| Váldodahkki: | |
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| Materiálatiipa: | masterThesis |
| Giella: | spa |
| Almmustuhtton: |
2024
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| Fáttát: | |
| Liŋkkat: | http://dspace.unach.edu.ec/handle/51000/13996 |
| Fáddágilkorat: |
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Lasit fáddágilkoriid | Čoahkkáigeassu: | Geopolymers, as a sustainable alternative to conventional cement, offer advantages such as reduced carbon footprint, higher strength and durability, and the ability to incorporate industrial waste. However, they face challenges in optimization, regulations, and industry acceptance. This study evaluates the durability of geopolymers made from pumice and brick dust against acid attacks, comparing them with Portland cement. Pumice and brick dust, rich in silica and alumina, react with alkaline activators to form a solid three-dimensional structure. Seven mixtures were prepared with variations in the molarity of the activators (8M, 10M, 12M) and in the percentage of brick dust (15% and 25%). The properties were evaluated through acid neutralization capacity (ANC) tests at different pH levels and mass loss under pH 2 conditions and extreme acidity. The results showed that pumice and brick dust-based geopolymers exhibit greater resistance to acid attack than Portland cements, which is attributed to their chemical structure being more resistant to acid corrosion. These findings suggest that geopolymers could be a more durable and sustainable option in aggressive environments, expanding their use in construction. |
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