Analysis of fire resistance of cement mortars with mineral wool from recycling
The objective of this research is to analyse the fire resistance of cement mortars with mineral wool from construction and demolition waste (CDW) recycling. The recycled mortars are therefore exposed to direct fire reaching a maximum temperature of 700 °C, and an experimental plan is designed to ana...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Consejo General de la Arquitectura Técnica de España (CGATE) |
| Repositorio: | RIARTE |
| OAI Identifier: | oai:www.riarte.es:20.500.12251/1474 |
| Acceso en línea: | http://hdl.handle.net/20.500.12251/1474 |
| Access Level: | acceso abierto |
| Palabra clave: | Resistencia al fuego Morteros - Construcción Lana mineral Residuos de Construcción Demolición (RCD) Ensayos (propiedades o materiales) Comportamiento térmico Propiedades mecánicas 2205.07 Medidas de Propiedades Mecánicas 2211.02 Materiales Compuestos 3313.04 Material de Construcción 3308.02 Residuos Industriales 3308.07 Eliminación de Residuos 3312.02 Aglomerantes 3312.08 Propiedades de Los Materiales 3312.09 Resistencia de Materiales 3312.03 Materiales Cerámicos |
| Sumario: | The objective of this research is to analyse the fire resistance of cement mortars with mineral wool from construction and demolition waste (CDW) recycling. The recycled mortars are therefore exposed to direct fire reaching a maximum temperature of 700 °C, and an experimental plan is designed to analyse thermo-mechanical behaviour before and after the testing of the mortars with different types of recycled fibres. The results show that the surface hardness of all mortars is practically unchanged after the fire, whereas the incorporation of fibre residues produce a significant improvement in the flexural strength after fire test compared with the reference mortar. The compressive strength values of all mortars decrease after the fire although they remain at optimum values for use according to regulatory requirements. The values of thermal conductivity are lower or remain unchanged after the fire test. Results show that the addition of these recycled fibres can be a sustainable alternative to the commercial ones currently being used, improving mechanical-thermal behaviour after the fire and preventing the explosive behaviour of the mortars. © 2020 Elsevier Ltd |
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