Granulats 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.