Granulated materials represent the mainly used product in the building industry; they are used in concrete, bituminous conglomerates, plasters, road and railways subgrades, etc… The different International Standards together with the EN are requiring many different checks on different features as: mechanical, physical, geometrical, kind of density, strength, degradability, etc. A rock stratum will undergo alterations in the mechanical characteristics when it is exposed to excavations, handlings, etc. For above reasons a study of the mechanical characteristics of an intact rock becomes indispensable in order to analyse the relative characteristics when realising underground or surface structures as galleries, quarries and foundations.

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