Concrete Research and Technology
Online ISSN : 2186-2745
Print ISSN : 1340-4733
ISSN-L : 1340-4733
Effects of the Solid Content of Coarse Aggregate on Compactability
Jun LiaingKimitaka UjiKatsuro KokubuAtsushi Ueno
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2005 Volume 16 Issue 3 Pages 11-19

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Abstract

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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