FIELD: building industry, particularly for high-quality treatment of non-hardened concrete surfaces made of rigid concrete mixes used for civil and industrial building.
SUBSTANCE: working surface of the cylinder if formed of pivoted rotary sectors arranged in parallel to cylinder axis. Cylinder body is provided with auger installed on axis thereof. Concrete mix discharge pipe is arranged in rear body part.
EFFECT: increased productivity and reduced concrete mix consumption.
3 dwg
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|
RU2168412C2 |
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|
RU2264912C1 |
