Rehydration on high temperature-mortars based on recycled glass as aggregate
| Autor: | V. Flores-Alés, Juan Manuel Alducin-Ochoa, M. Torres-González, J. J. Martín-del-Río |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Glass recycling
Work (thermodynamics) Morteros - Construcción Materials science Material de construcción 020209 energy Strategy and Management 3308.02 Residuos Industriales 02 engineering and technology Residuos de Construcción Demolición (RCD) Industrial and Manufacturing Engineering Thermal 0202 electrical engineering electronic engineering information engineering Tomografía computerizada Composite material Vidrio 0505 law General Environmental Science Reciclaje - Construcción 3312.09 Resistencia de Materiales Cement Aggregate (composite) Industria de la construcción Ensayos (propiedades o materiales) Renewable Energy Sustainability and the Environment 3312.08 Propiedades de Los Materiales 05 social sciences 3313.04 Material de Construcción Resistencia mecánica 3312.06 Vidrio 3312.12 Ensayo de Materiales 050501 criminology Degradation (geology) Cemento Amorphous silica Mortar 3312.02 Aglomerantes |
| Zdroj: | RIARTE Consejo General de la Arquitectura Técnica de España (CGATE) |
| Popis: | The incorporation of waste of different nature as components of mortars and cement concretes is a scientifically valid option that allows us to obtain a positive environmental balance in the manufacturing process of these construction materials. Considering the capacity of improvement of the thermal properties provided by glass, this work approaches the recovery by forced rehydration of mortars based on recycled glass after undergoing a process of heating at high temperature. Its mineralogical by XRD, structural evolution by SEM, X-ray computed tomography and DTA/TGA along with its physical-mechanical properties has been analyzed. Results have shown that, although the initial influence of glass can lead to inconsistent results according to the dosage and alteration process suffered, the favourable effect of the crushed glass after a thermal degradation and the subsequent rehydration treatment is observed. The rehydrated material based on recycled glass develops a capacity of mechanical recovery 6.2 times higher than the conventional mortar. This is due to the thermal an alkaline activation of amorphous silica, which favours the new formation of hydrated silicates as manifested the variation of the eccentricity coefficient of the pores: 0.5707 for conventional mortar and 0.6627 for glass based one. © 2020 Elsevier Ltd |
| Databáze: | OpenAIRE |
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