Alkali-activated binary concrete based on a natural pozzolan: physical, mechanical and microstructural characterization
This article presents the physical, mechanical and microstructural characterization of an alkali-activated binary concrete (AABC) based on a natural pozzolan (NP) of volcanic origin (70%) and granulated blast furnace slag (GBFS) (30%) cured at room temperature (25°C). A solution based on the combina...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2019-09-01
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| Series: | Materiales de Construccion |
| Subjects: | |
| Online Access: | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2255 |
| _version_ | 1818457803551932416 |
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| author | R. Robayo-Salazar R. Mejía de Gutiérrez F. Puertas |
| author_facet | R. Robayo-Salazar R. Mejía de Gutiérrez F. Puertas |
| author_sort | R. Robayo-Salazar |
| collection | DOAJ |
| description | This article presents the physical, mechanical and microstructural characterization of an alkali-activated binary concrete (AABC) based on a natural pozzolan (NP) of volcanic origin (70%) and granulated blast furnace slag (GBFS) (30%) cured at room temperature (25°C). A solution based on the combination of NaOH and waterglass (Na2SiO3·5H2O) was employed as an alkaline activator. The concrete design was obtained using a modified version of the “absolute volume” method (ACI 211.1). The performance of the AABC was similar and even superior to that of the reference concrete (OPC); e.g., it exhibited a compressive strength of up to 43.4 MPa at 360 days. These results demonstrate that the NP has potential for use in the industrial-scale production of these types of materials in the foreseeable future. |
| first_indexed | 2024-12-14T22:48:22Z |
| format | Article |
| id | doaj.art-de2c3fe94f9e43b1b74a109bc1b8c668 |
| institution | Directory Open Access Journal |
| issn | 0465-2746 1988-3226 |
| language | English |
| last_indexed | 2024-12-14T22:48:22Z |
| publishDate | 2019-09-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Materiales de Construccion |
| spelling | doaj.art-de2c3fe94f9e43b1b74a109bc1b8c6682022-12-21T22:44:47ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262019-09-0169335e191e19110.3989/mc.2019.066182180Alkali-activated binary concrete based on a natural pozzolan: physical, mechanical and microstructural characterizationR. Robayo-Salazar0https://orcid.org/0000-0003-1687-2885R. Mejía de Gutiérrez1https://orcid.org/0000-0002-5404-2738F. Puertas2https://orcid.org/0000-0002-4215-0184Composites Materials Group (CENM), School of Materials Engineering, Universidad del ValleComposites Materials Group (CENM), School of Materials Engineering, Universidad del ValleEduardo Torroja Institute for Construction Science (IETcc-CSIC)This article presents the physical, mechanical and microstructural characterization of an alkali-activated binary concrete (AABC) based on a natural pozzolan (NP) of volcanic origin (70%) and granulated blast furnace slag (GBFS) (30%) cured at room temperature (25°C). A solution based on the combination of NaOH and waterglass (Na2SiO3·5H2O) was employed as an alkaline activator. The concrete design was obtained using a modified version of the “absolute volume” method (ACI 211.1). The performance of the AABC was similar and even superior to that of the reference concrete (OPC); e.g., it exhibited a compressive strength of up to 43.4 MPa at 360 days. These results demonstrate that the NP has potential for use in the industrial-scale production of these types of materials in the foreseeable future.http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2255alkali-activated concretebinary concretenatural volcanic pozzolangranulated blast furnace slagmechanical and physical properties |
| spellingShingle | R. Robayo-Salazar R. Mejía de Gutiérrez F. Puertas Alkali-activated binary concrete based on a natural pozzolan: physical, mechanical and microstructural characterization Materiales de Construccion alkali-activated concrete binary concrete natural volcanic pozzolan granulated blast furnace slag mechanical and physical properties |
| title | Alkali-activated binary concrete based on a natural pozzolan: physical, mechanical and microstructural characterization |
| title_full | Alkali-activated binary concrete based on a natural pozzolan: physical, mechanical and microstructural characterization |
| title_fullStr | Alkali-activated binary concrete based on a natural pozzolan: physical, mechanical and microstructural characterization |
| title_full_unstemmed | Alkali-activated binary concrete based on a natural pozzolan: physical, mechanical and microstructural characterization |
| title_short | Alkali-activated binary concrete based on a natural pozzolan: physical, mechanical and microstructural characterization |
| title_sort | alkali activated binary concrete based on a natural pozzolan physical mechanical and microstructural characterization |
| topic | alkali-activated concrete binary concrete natural volcanic pozzolan granulated blast furnace slag mechanical and physical properties |
| url | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2255 |
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