mortar

In this paper prescriptions of dry building mixes for industrial floors were developed. Main indicators for such material are enough spreadability of fresh mixture during certain period of time, needed for its enclosing, high early strength, minimal deformation of hardened material. Technology of industrial floors construction in buildings with high loading is showed. Investigation of quartz sand with different granulometry on physical and mechanical properties of dry building mix for industrial floors is conducted.

The results are given on the basis of an experimental research on firmness and deformability of normal sections of concrete beams reinforced with frameless reinforcement and rod reinforcement class A400C without prestressing. These experiments and comparing them with calculations according to current regulations give an opportunity to assess the convergence of the results and draw conclusions about the possibility of rational design of ceramic block bending elements with double reinforcement in the area of the normal forces.