VIBRATION PLATFORM FOR COMPACTING CONCRETE MIXTURE IN FORM Russian patent published in 1995 - IPC

FIELD: production of building materials. SUBSTANCE: a vibration platform for compacting a concrete mixture in a form has a movable frame, mounted on a foundation with the aid of elastic supporting assemblies. The frame has on its lower surface a cross triangular protrusion with a cavity, filled by sound absorbing material. On an inclined face of the protrusion a sound-absorbing gasket of a polymeric material is placed for supporting a circular oscillation exciter. In order to provide a possibility of filling the cavity of the protrusion by the sound-absorbing material, a working surface of the movable frame has an opening over the protrusion. EFFECT: enhanced quality of compacted mixture. 1 cl, 3 dwg