期刊
ENVIRONMENTAL EARTH SCIENCES
卷 81, 期 17, 页码 -出版社
SPRINGER
DOI: 10.1007/s12665-022-10530-6
关键词
Volcanic tuffs; Rock composition; Tuff fabrics; Petrophysical properties; Clay mineralogy; CEC; Deterioration of building stones
资金
- German Research Foundation [Si-438/52-1]
- German Federal Environmental Foundation [AZ20017/481]
- German Academic Exchange Service [57212311]
This study conducts comprehensive investigations and analyses on volcanic tuff rocks in Mexico to determine their suitability and durability as natural building stones. The research findings indicate a wide range of diversity in color, rock composition, mineralogy, and rock fabric of volcanic tuffs in Mexico.
Many cultural heritage sites in Mexico have been built with volcanic tuff rocks from the earliest Central American civilizations to the time of the Spanish conquest and up to the present. Throughout this long period of time, the stones have been subjected to progressive weathering as evidenced by different types of damage phenomenon such as scaling, sanding, crumbling, sugaring and salt efflorescence. This study utilizes a collection of 53 tuffs from different regions in Mexico that show a diverse range of colors, rock compositions and mineralogy, and heterogeneous rock fabrics indicative of their volcanic origin. Comprehensive investigations have been done that include detailed petrographic analyses, cathodoluminescence, clay mineral analyses, and the determination of a wide range of petrophysical properties (e.g., porosity, capillary water uptake, water absorption, sorption, hydric and thermal expansion, and mechanical properties). All analyzed data combined are used for derivation of some general trends concerning the suitability/durability of tuffs applied as natural building stones.
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