FIELD: construction engineering; high-quality treatment of non hardened concrete surfaces of reinforced-concrete articles made form dry concrete mixes. SUBSTANCE: two-mass vibration working member of smoothing-out machine includes body, smoothing-out disk, drive shaft with cam mechanism at the end for transmitting pulses and rotation to upper spring rigidly secured with additional mass and lower spring; spring are twisted and untwisted; smoothing-out disk is mounted for transmission of motion and polyharmonic oscillations in vertical plane. EFFECT: improved quality of surfaces; reduced usage materials and reduced power requirements. 1 dwg
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