| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for easily and accurately managing a mixing ratio even in the case that the management of the mixing ratio can not be executed while measuring the weight of mutual materials like a ground improving method. SOLUTION: A plurality of kinds of materials are mixed at a specified optimum mixing ratio to prepare a standard mixed material. The image of the standard mixed material is picked up to obtain the image (S1-S4). The same plurality of materials are mixed to prepare a substantial use mixing material. The image of this mixing material is taken to get an image data (S1-S4). By comparing these image data with each other, whether the mixing ratio of the substantial use materials is the same with the mixing ratio of the standard mixing material is judged through an image analysis. COPYRIGHT: (C)2004,JPO
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