Ultra-high-performance concrete with local high unburned carbon fly ash
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional de Colombia
2021
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| _version_ | 1876480861101096960 |
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| author | Joaquín Abellán-García |
| author_facet | Joaquín Abellán-García |
| contents | Ultra-high-performance concrete with local high unburned carbon fly ash Joaquín Abellán-García Nancy Torres-Castellanos Jaime Fernández-Gómez Andrés Núñez-López Ingeniería Ultra high optimization sustainability performance concrete (UHPC) design of experiments (DoE) Ultra-high-performance concrete (UHPC) is a kind of high-tech cementitious material with superb mechanical and durability properties compared to other types of concrete. However, due to the high content of cement and silica fume used, the cost and environmental impact of UHPC is considerably higher than conventional concrete. For this reason, several efforts around the world have been made to develop UHPC with greener and less expensive local pozzolans. This study aimed to design and produce UHPC using local fly ash available in Colombia. A numerical optimization, based on Design of Experiments (DoE) and multi-objective criteria, was performed to obtain a mixture with the proper flow and highest compressive strength, while simultaneously having the minimum content of cement. The results showed that, despite the low quality of local fly ashes in Colombia, compressive strength values of 150 MPa without any heat treatment can be achieved. 2021 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49668215005 https://www.redalyc.org/journal/496/49668215005/ https://www.redalyc.org/journal/496/49668215005/html/ https://www.redalyc.org/journal/496/49668215005/49668215005.epub https://www.redalyc.org/journal/496/49668215005/movil 10.15446/dyna.v88n216.89234 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.216 Vol.88 |
| format | Artículo científico |
| id | redalyc_49668215005 |
| institution | Redalyc |
| language | en |
| publishDate | 2021 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Ultra-high-performance concrete with local high unburned carbon fly ash Joaquín Abellán-García Ingeniería Ultra high optimization sustainability performance concrete (UHPC) design of experiments (DoE) Ultra-high-performance concrete with local high unburned carbon fly ash Joaquín Abellán-García Nancy Torres-Castellanos Jaime Fernández-Gómez Andrés Núñez-López Ingeniería Ultra high optimization sustainability performance concrete (UHPC) design of experiments (DoE) Ultra-high-performance concrete (UHPC) is a kind of high-tech cementitious material with superb mechanical and durability properties compared to other types of concrete. However, due to the high content of cement and silica fume used, the cost and environmental impact of UHPC is considerably higher than conventional concrete. For this reason, several efforts around the world have been made to develop UHPC with greener and less expensive local pozzolans. This study aimed to design and produce UHPC using local fly ash available in Colombia. A numerical optimization, based on Design of Experiments (DoE) and multi-objective criteria, was performed to obtain a mixture with the proper flow and highest compressive strength, while simultaneously having the minimum content of cement. The results showed that, despite the low quality of local fly ashes in Colombia, compressive strength values of 150 MPa without any heat treatment can be achieved. 2021 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49668215005 https://www.redalyc.org/journal/496/49668215005/ https://www.redalyc.org/journal/496/49668215005/html/ https://www.redalyc.org/journal/496/49668215005/49668215005.epub https://www.redalyc.org/journal/496/49668215005/movil 10.15446/dyna.v88n216.89234 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.216 Vol.88 |
| title | Ultra-high-performance concrete with local high unburned carbon fly ash |
| topic | Ingeniería Ultra high optimization sustainability performance concrete (UHPC) design of experiments (DoE) |
| url | https://www.redalyc.org/articulo.oa?id=49668215005 https://www.redalyc.org/journal/496/49668215005/ https://www.redalyc.org/journal/496/49668215005/html/ https://www.redalyc.org/journal/496/49668215005/49668215005.epub https://www.redalyc.org/journal/496/49668215005/movil |