Abstract
Nowadays, most of the infrastructure building has inside its structural elements stony material. Over the years, the rocks have been widely used in construction, as stony material in a ceramic or cement matrix, or as a structural element in historical buildings. Physical characteristics are determined as: the present Humidity, Absorption, Density, specific Gravity, and mechanics as uni-axial Compression Resistance, besides Capillary Suction. We obtained images with Scanning Electron Microscopy (SEM) and we compared the physical and mechanical proofs with microphotographs. These studies help a restorer to use the rocks wisely and with the conviction that the rock is appropriate for the goals searched. The stony materials are found in a material bank called Comanja in Michoacán, Mexico.
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