| 摘要 |
PROBLEM TO BE SOLVED: To provide a mortar or concrete mixer and a mortar or concrete spraying apparatus which enable the spraying of a mortar or a concrete to be smoothly and securely carried out. SOLUTION: The mortar or concrete mixer for mixing aggregate 1 and cement milk 6 which constitute the mortar M or the concrete, pours the aggregate 1 through an almost tubular feed flow path 8 and the cement milk 6 through a cement milk delivery pipe 9 whose downstream end is connected with the feed flow path 8. In addition, the apparatus guides the cement milk 6 along the inner wall of the feed flow path 8 from the cement milk delivery pipe 9. COPYRIGHT: (C)2004,JPO
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