FIELD: construction engineering; treatment of non-solidified concrete surfaces of reinforced concrete items. SUBSTANCE: roll is made in the form of hollow truncated cone; eccentric assembly is installed at smaller butt-end of cone and has body accommodating sliding bush, eccentric glass with intermediate molded bush, stop bearing, butt-end lid, drive pulley, shaft, and muffle. Supporting assembly installed on other side of roll has spherical sliding bearing, bush, and butt-end washer. Run-out of glass equals difference in diameters of roll butt-ends. EFFECT: improved quality of floating surface. 1 dwg
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