The main objective is to research and develop micro-concretes and micro-mortars based on graphene, allowing to increase the current knowledge on high-strength concretes with nanoparticles. The aim is to produce cementitious micromaterial mixtures that are economical and easy to use, improving the performance of the products currently on the market. To this end, the most relevant differences of this new micromaterial with respect to traditional concrete in both fresh and hardened states will be studied.