Aggregates 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 European Standards 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.