Concrete can be used in a variety of fields, from construction to art. Both resistant and durable, it meets a number of performance criteria, which explains why it is so ubiquitous today. As its composition varies according to the different constituents present in the mix, it is now possible to make the concrete of your dreams.The aim of this work is to enhance the value of aggregates in the manufacture of new hydraulic concretes.This experimental study presents the results of physical and mechanical characterizations of natural aggregates used to prepare hydraulic concrete, as well as the influence of these aggregates on the properties of fresh and hardened concrete.Using a Dreux Gorisse formulation and comparing it with an empirical formulation.