A daytime radiative cooling cementitious composite (DRCCC)

The present invention refers to a Daytime Radiative Cooling Cementitious composite comprising:• an OPC binder in the form of grains, with an amount of Fe2O3 lower than 0.05 % by weight with respect to the total weight of the OPC binder, wherein the grain size is below 25 µm,• water, wherein the weight ratio between water and the OPC binder is between 0.2 to 0.6,• an addition in a proportion between 0.1% and 50% by weight with respect to the weight of the OPC binderand wherein the resulting DRCCC has a pore size below 6 µm as defined by mercury intrusion porosimetry,that can optionally comprise micropatterns, and to its use in the construction industry, such as building construction, in civil works such as reservoirs, bridges, dams and sewers, in solar cell technology or in urban architectural design.