This paper introduces the recent state of research on creep of new concrete made by montmorillonite mineral nano particles (MNP) and then comparing them with control specimens made from reference concrete. Experimental studies review new concrete compositions on long – term deformations. Concrete compositions with unconventional additives were designed and prepared. Specimens were tested in two extreme environments: in one case there was 100% humidity provided by protecting the specimens from desiccation and in the other case specimens were air-dried and protected from any moisture. Concrete specimens were subject to load in a constant room temperature and with a constant level of moisture. Stress levels were calculated from compression strength results. The investigated properties include compression strength, modulus of elasticity and creep. A number of experimental results are presented demonstrating the validity of the stress and strain.