Sugar cane bagasse ash as a pozzolanic material

This study aimed to verify the SCBA's potential use as a partial replacement of Portland cement. Therefore, the experiment was divided in two stages; in the first, mineralogical and chemical analyses were performed with two samples of ash, in-natura and calcined at a temperature of 600°C for 6h...

Full description

Autores:
Mansaneira, Emerson Carlos
Schwantes-Cezario, Nicole
Barreto Sandoval, Gersson Fernando
Toralles, Berenice Martins
Tipo de recurso:
Article of journal
Fecha de publicación:
2017
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/60411
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/60411
http://bdigital.unal.edu.co/58743/
Palabra clave:
62 Ingeniería y operaciones afines / Engineering
Sugar cane bagasse ash
pozzolanic activity
mechanical performance
ceniza de bagazo de caña de azúcar
actividad puzolánica
comportamiento mecánico
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
Description
Summary:This study aimed to verify the SCBA's potential use as a partial replacement of Portland cement. Therefore, the experiment was divided in two stages; in the first, mineralogical and chemical analyses were performed with two samples of ash, in-natura and calcined at a temperature of 600°C for 6h. After these analyzes, it was observed that the calcined ash presented a greater tendency of material in the amorphous state, which possibly made the material the most reactive. For this reason, only the calcined ash was ground for 1 and 2h. These samples were further studied in order to check the pozzolanic activity index and the compressive strength, evaluating the replacement of 10, 20 and 30% Portland cement by ground SCBA. The results showed an increase in the pozzolanic activity index only in samples of calcined and ground SCBA, showing that calcined ash must undergo a grinding process to present pozzolanic activity.