Characterization of sugar cane bagasse ash as supplementary material for Portland cement
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| Format: | Artículo científico |
| Langue: | en |
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Universidad Nacional de Colombia
2014
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| _version_ | 1876490219777163264 |
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| author | J. Torres Agredo |
| author_facet | J. Torres Agredo |
| contents | Characterization of sugar cane bagasse ash as supplementary material for Portland cement J. Torres Agredo R. Mejía de Gutiérrez C. E. Escandón Giraldo L. O. González Salcedo Ingeniería pozzolan blended cement Portland cement Sugar cane bagasse ash Sugar Cane Bagasse is a by-product of the sugar agro-industry; it is partly used as fuel. However, bagasse ash (SCBA) is considered waste, which creates a disposal problem. Furthermore, if sugar cane bagasse is burned under controlled conditions, the SCBA can be potentially reused. This paper considers the technical viability of using SCBA as a partial replacement for cement. Two samples of SCBA from a Colombian sugar industry were characterized. The chemical composition of the samples shows high percentages of silica, 76.3% and 63.2%. The mineralogical and morphological characteristics of the waste were determined by X-ray diffraction patterns (XRD), thermal analysis (TG/DTA) and scanning electron microscopy (SEM). The pozzolanic activity of SCBA was evaluated using the Frattini test and the strength activity index test (SAI). The ASTM C618 defines an SAI of at least 75% as a requirement for classifying material as a pozzolan. This condition was achieved in the experiments performed. The results indicate that SCBA produced in the manufacture of commercial cements can be recycled for use as pozzolanic material. This supplementary material can partially re-place cement and therefore reduce CO2 emissions. 2014 artículo científico 0120-5609 https://www.redalyc.org/articulo.oa?id=64330696002 en http://www.redalyc.org/revista.oa?id=643 Ingeniería e Investigación application/pdf Universidad Nacional de Colombia Ingeniería e Investigación (Colombia) Num.1 Vol.34 |
| format | Artículo científico |
| id | redalyc_64330696002 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Characterization of sugar cane bagasse ash as supplementary material for Portland cement J. Torres Agredo Ingeniería pozzolan blended cement Portland cement Sugar cane bagasse ash Characterization of sugar cane bagasse ash as supplementary material for Portland cement J. Torres Agredo R. Mejía de Gutiérrez C. E. Escandón Giraldo L. O. González Salcedo Ingeniería pozzolan blended cement Portland cement Sugar cane bagasse ash Sugar Cane Bagasse is a by-product of the sugar agro-industry; it is partly used as fuel. However, bagasse ash (SCBA) is considered waste, which creates a disposal problem. Furthermore, if sugar cane bagasse is burned under controlled conditions, the SCBA can be potentially reused. This paper considers the technical viability of using SCBA as a partial replacement for cement. Two samples of SCBA from a Colombian sugar industry were characterized. The chemical composition of the samples shows high percentages of silica, 76.3% and 63.2%. The mineralogical and morphological characteristics of the waste were determined by X-ray diffraction patterns (XRD), thermal analysis (TG/DTA) and scanning electron microscopy (SEM). The pozzolanic activity of SCBA was evaluated using the Frattini test and the strength activity index test (SAI). The ASTM C618 defines an SAI of at least 75% as a requirement for classifying material as a pozzolan. This condition was achieved in the experiments performed. The results indicate that SCBA produced in the manufacture of commercial cements can be recycled for use as pozzolanic material. This supplementary material can partially re-place cement and therefore reduce CO2 emissions. 2014 artículo científico 0120-5609 https://www.redalyc.org/articulo.oa?id=64330696002 en http://www.redalyc.org/revista.oa?id=643 Ingeniería e Investigación application/pdf Universidad Nacional de Colombia Ingeniería e Investigación (Colombia) Num.1 Vol.34 |
| title | Characterization of sugar cane bagasse ash as supplementary material for Portland cement |
| topic | Ingeniería pozzolan blended cement Portland cement Sugar cane bagasse ash |
| url | https://www.redalyc.org/articulo.oa?id=64330696002 |