| 摘要 |
PROBLEM TO BE SOLVED: To clearly display not only a particle size distribution but also a particle shape and a filled condition, in order to identify clearly whether an aggregate is optimum for a use or not. SOLUTION: Particle size distribution samples for the aggregate are arranged in parallel on the same plane by arranging laterally and adjacently three or more of storage chambers 1 extended vertically and having the same cross-sectional area of horizontal cross-section. A front face of each of the storage chambers 1 has translucency to observe the aggregate filled in the each storage chamber 1 from an outside. The particle size distribution samples are filled with the aggregates of which the particle sizes get large in order from one end part toward the other end part, in the three or more of storage chambers 1 adjacently arranged laterally along the horizontal direction, and the particle size is displayed by a height of the aggregate filled in each chamber 1. COPYRIGHT: (C)2005,JPO&NCIPI
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