RT journal article
T1 Development and Mechanical Analysis of Geopolymers Formed with Mining Residue and Fly Ash from Municipal Solid Waste Incineration Obtained After the Neutralisation Stage
A1 Terrones-Saeta, A.
A1 Terrones Saeta, Juan María
A1 Suárez Macías, Jorge
A1 Iglesias Godino, Francisco Javier
A1 Corpas Iglesias, Francisco Antonio
A2 Ingeniería Industrial e Ingeniería Civil
K1 geopolymers
K1 potentially toxic elements
K1 mining residue
K1 energy source waste
K1 circular economy mechanical analysis
K1 sustainability
K1 construction materials
AB Renewable energy sources are presented as a key solution to today’s energyneeds, but they also generate waste that can have a negative impact on the environment.In particular, fly ash from the incineration of municipal solid waste (MSW), classifiedas hazardous by European regulations, is often deposited in landfills due to its lack ofusefulness. This research proposes its valorisation in geopolymers, combining it withmining to create a sustainable material with a high industrial waste content. Firstly, all thewastes involved were characterised, which allowed for the development of a high-qualitygeopolymer from mining residue activated with 5% NaOH. This material was enrichedwith up to 50% fly ash (in increasing percentages) with the aim of making it inert, retainingit in the geopolymer matrix, and observing its effect on the final material. The physicaland mechanical properties of the geopolymers obtained were evaluated, demonstratingthat they do not produce contaminating leachates. The results indicate the feasibility ofdeveloping a geopolymer with up to 20% fly ash, obtaining a building material comparableto traditional ceramics, suitable for commercialisation, with a lower environmental impactand in line with the principles of the circular economy
PB MDPI
SN 2073-4360
YR 2025
FD 2025-06-19
LK http://hdl.handle.net/10498/38618
UL http://hdl.handle.net/10498/38618
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-may-2026