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Título
Retention of Pollutants Elements from Mine Tailings of Lead in Geopolymers for Construction
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Materials
Número de la revista
20
Cita Bibliográfica
Terrones-Saeta, J. M., Suárez-Macías, J., Castañón, A. M., Gómez-Fernández, F., & Corpas-Iglesias, F. A. (2021). Retention of pollutants elements from mine tailings of lead in geopolymers for construction. Materials, 14(20). https://doi.org/10.3390/ma14206184
Editorial
MDPI
Fecha
2021
Resumen
[EN] The construction sector is one of the most demanding sectors of raw materials in existence
today. As a consequence, the extraction of these materials has a significant impact on the environment.
At the same time, mining activities produce a series of wastes, in some cases with polluting elements,
which must be treated to avoid pollution. Therefore, the use of mining waste for the conformation
of new construction materials is an important environmental advantage, even more so when such
waste is prevented from producing polluting leachates. Therefore, in this research, geopolymers
are developed with mine tailings from the Linares lead mines, chemically activated with potassium
hydroxide. For this purpose, different percentages of the alkaline activator were tested and the
physical and mechanical properties of the conformed materials were evaluated. The analysis of
the different conformed geopolymers determined the optimum percentage of potassium hydroxide
for conforming the geopolymer with the best mechanical and physical properties. In addition, the
concentration in the leachate of potentially contaminating chemical elements in the mining waste
was estimated to be lower than those regulated by the regulations. Consequently, this research shows
the development of a sustainable material for construction with mining waste and reduction of the
environmental impact of traditional products.
Materia
Palabras clave
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