コンクリート工学論文集
Online ISSN : 2186-2745
Print ISSN : 1340-4733
ISSN-L : 1340-4733
粗骨材の実積率がフレッシュコンクリートの締固め性に与える影響
梁 俊宇治 公隆國府 勝郎上野 敦
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ジャーナル フリー

2005 年 16 巻 3 号 p. 11-19

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When the shape of particle and the grading of the coarse aggregate are not adequate, the deformation resistance of concrete become large in accordance with the interaction of coarse aggregate, and the compactability may be affected greatly. In this study, the effect of the solid content on the compactability of concrete was investigated fundamentally under the condition that the solid content varied with the crushed limestone of several shapes and grading. The compaction completion energies were measured by the compaction test machine, which was developed by authors. From the test results, it was clarified that the compaction completion energy decreased with the increase of solid content. Also, we discussed the relationship between the sand-total aggregate ratio for the maximum solid content of fine-coarse blended aggregate and that for the minimum compaction completion energy based on the experiments.

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