Potential use of ceramic sanitary ware waste as pozzolanic material
This paper evaluated the pozzolanic activity of ceramic sanitary ware (CSW) waste when blended with Portland cement (PC). CSW waste units were broken, crushed and milled to reduce their particle size. These particles were characterized by scanning electron microscopy (SEM-EDX), laser granulometry, X...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Consejo General de la Arquitectura Técnica de España (CGATE) |
| Repositorio: | RIARTE |
| OAI Identifier: | oai:www.riarte.es:20.500.12251/3816 |
| Acceso en línea: | http://hdl.handle.net/20.500.12251/3816 https://doi.org/10.1016/j.bsecv.2021.05.006 |
| Access Level: | acceso abierto |
| Palabra clave: | Residuos - Construcción Cerámica sanitaria Cemento Portland Espectrocopia infrarroja Material puzolánico Ensayos (propiedades o materiales) Reciclaje - Construcción Material sostenible Resistencia mecánica 3312.08 Propiedades de Los Materiales 3312.09 Resistencia de Materiales 3312.12 Ensayo de Materiales 2211.02 Materiales Compuestos 3308.02 Residuos Industriales 3308.07 Eliminación de Residuos 3313.04 Material de Construcción |
| Sumario: | This paper evaluated the pozzolanic activity of ceramic sanitary ware (CSW) waste when blended with Portland cement (PC). CSW waste units were broken, crushed and milled to reduce their particle size. These particles were characterized by scanning electron microscopy (SEM-EDX), laser granulometry, X-ray fluorescence (XRF) and X-ray diffraction tests (XRD), and were then used to replace 0–50 wt.% PC CEM I 42.5R in pastes and mortars. Workability of the fresh mortars was assessed by the flow-table spread test, and the mechanical properties and microstructure (thermogravimetry, SEM-EDX, XRD and Fourier transform infrared spectroscopy tests) were investigated in samples cured at 20 °C for up to 365 days. No significant workability variations were observed with increasing waste contents and, although pozzolanic activity of CSW was relatively slow, it improved with the curing time, and mortars prepared with up to 25 wt.% ceramic waste satisfied the requirements established for other pozzolanic materials, such as fly ash. |
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