Concrete screed M15 is used to make cement floors bound to the substrate with a layer with the minimum thickness from 25 mm to 80 mm. In particular, it should be used for making floors and pressure, underlayment and gradient shaping layers. It is also used as a "floating" underlayment on damp-proof, thermal and acoustic insulations, for the underfloor heating system and as a base on the separation layer with a minimum thickness of 35 mm. It is suitable for priming all surfaces and hydraulic binders. The screed may be used to make small structural elements after the proper reinforcement has been laid in advance.