@article{Moreno-Maroto_González-Corrochano_Alonso-Azcárate_Martínez-García_2021, title={Sintering of sepiolite-rich by-products for the manufacture of lightweight aggregates: technological properties, thermal behavior and mineralogical changes}, volume={71}, url={https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/2308}, DOI={10.3989/mc.2021.05620}, abstractNote={<p>A sepiolite mining by-product (SEP) has been studied as major component for lightweight aggregate (LWA) manufacture. Pellet bursting during firing was avoided by the addition of 2.5 wt% of thermoplastic waste (P) and 2.5 wt% P + 2.5 wt% carbon fiber residue (FC) in powder form. The mixtures were pelletized and then sintered at 1225º˚C for 4 minutes in a rotary kiln. Highly porous white LWAs with good mechanical strength were produced. A mineralogical study revealed the formation of amorphous phase ( > 50%) and minor proportions of enstatite, protoenstatite and diopside. Quartz was the only inherited mineral, appearing in the form of isolated phenocrysts within a general porphyritic texture. The result of this study suggests the promising use of sepiolite (whether or not in residue form) for the manufacture of high quality LWAs.</p>}, number={341}, journal={Materiales de Construcción}, author={Moreno-Maroto, J. M. and González-Corrochano, B. and Alonso-Azcárate, J. and Martínez-García, C.}, year={2021}, month={Mar.}, pages={e241} }