This monograph is a part of individual work done during doctorate period, in which is explained the design and the production of durable concrete with aggregate of limestone composition taken from mountains quarries. Produced cubes are treated in site condition (under normal condition of class C0) and in condition of sea water presence (under aggressive condition C3). The durability of concrete and concrete structures is one of the tasks to solve even in our country's construction field. We say in construction field because to design durable concrete means: To use concrete material components to fit the purpose of use in environmental condition of utilization. To design the right recipe to obtain the desired concrete class, with a minimum economic expense. To put in work the concrete of the structure and to treat and maintain the structure by fulfilling all the requirement of Standards and Concrete Conformity requirements at maximum. In this monograph is explained how to design Durable concrete by studying the impact of raw inert mountain material.