| 摘要 |
PROBLEM TO BE SOLVED: To provide an addition apparatus for producing a uniform cement composition without the occurrence of balls when a water-soluble cellulosic polymer is added into the cement composition of an agitator vehicle and its addition method. SOLUTION: The addition apparatus has a nozzle for adding the water soluble cellulosic polymer into the cement composition in the agitator drum of the agitator vehicle, a pipe and/or a hose to which the nozzle is bonded. The nozzle is a shower nozzle. COPYRIGHT: (C)2004,JPO&NCIPI
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