The Research of the Nature of Surface Compaction of Polymer Concrete by a Vibration Working Body with Electric Drive

Based on the analysis of existing methods of surface vibration compaction, a vibration working body is proposed, made in the form of a horizontal vibration plate, on which an electric drive is mounted on top, consisting of an asynchronous electric motor with unbalances installed at the ends of the rotor shaft. To analytically determine the nature of the interaction of a vibrating plate equipped with an electric drive with polymer concrete, the research was made of the dynamic system “vibration plate - polymer concrete”, in which polymer concrete is presented as a system with distributed parameters, taking into account the action of elastic and dissipative resistance forces from polymer concrete with its surface compaction. In accordance with the accepted rheological model of polymer concrete, a wave equation of vibrations was compiled that describes the movement of compacted polymer concrete, the solution of which made it possible to determine the law of propagation of elastic-viscous deformation waves in polymer concrete, the physical and mechanical characteristics of polymer concrete, the vibration amplitude of the vibrating plate and the law of stress change in compacted layer of polymer concrete.