| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus which removes air in concrete without using vibration. SOLUTION: A concrete kneading apparatus has a cylindrical drum for kneading the concrete, an agitator which can be coupled to the drum and kneads the concrete while evacuating the drum, and a pressurization apparatus which can be coupled to the drum and has a plate for pressurizing the concrete kneaded by the agitator and a driving apparatus for driving the plate. The agitator has an agitation blade and a motor for driving the agitation blade. The kneading apparatus is additionally provided with an evacuation apparatus coupled to the upper lid of the drum. The drum has a nozzle for discharging the concrete. The agitator is detached from the drum after the end of kneading, and a pressurization apparatus is coupled to the drum in place of the agitator. The concrete, while being pressurized by the pressurization apparatus, is discharged from the nozzle. The amount of air contained in the concrete taken out from the kneading apparatus is reduced. COPYRIGHT: (C)2003,JPO
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