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Costafreda JlAutor (correspondencia)Martín D.a.Autor o CoautorHerrera JAutor o CoautorPresa LAutor o CoautorGarcía-Laso AAutor o CoautorParra JlAutor o CoautorA New Study on the Eastern Flank of the Loma Blanca Deposit (Cuba) to Establish the Mineralogical, Chemical, and Pozzolanic Properties of Zeolitised Tuffs
Publicado en:Chemistry-Switzerland. 4 (3): 669-680 - 2022-09-01 4(3), DOI: 10.3390/chemistry4030048
Autores: Costafreda, Jorge L; Martin, Domingo A; Herrera, Juan; Costafreda-Velazquez, Jorge L; Presa, Leticia; Garcia-Laso, Ana; Parra, Jose Luis
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Resumen
The geological nature of the territory of the Republic of Cuba has favoured the formation of large and varied deposits of volcanic tuffs enriched by various species of zeolites. Today, new zeolite deposits continue to be discovered in the country. This work aims to present the results of a study carried out in an unexplored area that is located approximately 1.2 km east of the Loma Blanca deposit, outside the mining operation limits. To carry out this research and to establish a qualitative comparison between both sample populations, four samples were taken from the study area, and another four were taken from the Loma Blanca deposit. The characterisation of the samples was performed by XRD, SEM, and XRF. The pozzolan quality was determined by the pozzolanicity test (PT) and quality chemical analysis (QCA). Finally, a study of the mechanical strength (MST) was performed at 7, 28, and 90 days, using mortar specimens made with PC/ZT: 75–25% and PC/ZT: 70–30%, respectively. The results of the studies using XRD, SEM, and XRF indicated that both groups of samples had a similar complex mineralogical composition, consisting mainly of mordenite and clinoptilolite accompanied by secondary phases such as quartz and amorphous materials in the form of altered glass. The pozzolanicity test showed that both the samples from the study area and those from the Loma Blanca deposit behaved like typical pozzolans, which is a trend that can be seen in the high values of mechanical strength to compression up to 72 MPa for the PC/ZT: 75–25% formulation and 66 MPa for the PC/ZT: 70–30%. The results obtained establish that the zeolite varieties detected in the study area are similar to those of the Loma Blanca deposit, which could have a positive impact on the increase in current reserves, especially for manufacturing pozzolanic cements with properties that contribute to the preservation of the environment.
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Impacto bibliométrico. Análisis de la aportación y canal de difusión
El trabajo ha sido publicado en la revista Chemistry-Switzerland debido a la progresión y el buen impacto que ha alcanzado en los últimos años, según la agencia Scopus (SJR), se ha convertido en una referencia en su campo. En el año de publicación del trabajo, 2022, se encontraba en la posición , consiguiendo con ello situarse como revista Q2 (Segundo Cuartil), en la categoría Chemistry (Miscellaneous).
Impacto y visibilidad social
Análisis de liderazgo de los autores institucionales
Este trabajo se ha realizado con colaboración internacional, concretamente con investigadores de: Cuba.
Existe un liderazgo significativo ya que algunos de los autores pertenecientes a la institución aparecen como primer o último firmante, se puede apreciar en el detalle: Primer Autor (COSTAFREDA MUSTELIER, JORGE LUIS) y Último Autor (PARRA Y ALFARO, JOSE LUIS).
el autor responsable de establecer las labores de correspondencia ha sido COSTAFREDA MUSTELIER, JORGE LUIS.