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A New Study on the Eastern Flank of the Loma Blanca Deposit (Cuba) to Establish the Mineralogical, Chemical, and Pozzolanic Properties of Zeolitised Tuffs
Citation
Costafreda Mustelier, Jorge Luis 
ORCID: https://orcid.org/0000-0002-5125-4575, Martín Sánchez, Domingo Alfonso ORCID: https://orcid.org/0000-0002-3179-2245, Herrera Herbert, Juan ORCID: https://orcid.org/0000-0002-7656-1707, Costafreda Velázquez, Jorge Luis, Presa Madrigal, Leticia ORCID: https://orcid.org/0000-0002-4165-0611, García Laso, Ana ORCID: https://orcid.org/0000-0002-3310-2674 and Parra y Alfaro, José Luis ORCID: https://orcid.org/0000-0002-6979-5986
(2022).
A New Study on the Eastern Flank of the Loma Blanca Deposit (Cuba) to Establish the Mineralogical, Chemical, and Pozzolanic Properties of Zeolitised Tuffs.
"Chemistry", v. 4
(n. 3);
pp. 669-680.
https://doi.org/10.3390/chemistry4030048.
Description
| Title: | A New Study on the Eastern Flank of the Loma Blanca Deposit (Cuba) to Establish the Mineralogical, Chemical, and Pozzolanic Properties of Zeolitised Tuffs |
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| Author/s: |
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| Item Type: | Article |
| Título de Revista/Publicación: | Chemistry |
| Date: | 4 July 2022 |
| Volume: | 4 |
| Subjects: | |
| Freetext Keywords: | Volcanic tuffs; zeolites; mordenite; clinoptilolite; cement; pozzolanicity |
| Faculty: | E.T.S.I. de Minas y Energía (UPM) |
| Department: | Ingeniería Geológica y Minera |
| UPM's Research Group: | Estudios Ambientales GEA |
| Creative Commons Licenses: | None |
Abstract
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.
More information
| Item ID: | 71053 |
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| DC Identifier: | https://oa.upm.es/71053/ |
| OAI Identifier: | oai:oa.upm.es:71053 |
| DOI: | 10.3390/chemistry4030048 |
| Official URL: | https://www.mdpi.com/2624-8549/4/3/48 |
| Deposited by: | Dr. Jorge Luis Costafreda Mustelier |
| Deposited on: | 08 Jul 2022 06:24 |
| Last Modified: | 08 Jul 2022 06:24 |
