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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Properties of Double-Mixed Lean Concrete Subjected to Vibrating Compaction
Author(s): K. Iida and S. Horigome
Publication: Special Publication
Appears on pages(s): 215-246
Keywords: cohesion; compacting; compression tests; consolidation; density (mass/volume); dynamic modulus of elasticity; fresh concretes; internal friction; mixing; pore water pressure; roller-compacted concrete; vibration; Materials Research
Abstract:The effect of mixing methods on compaction properties is described. A new mixing method presented divides the mixing water into two portions and adds them at different times. The concrete produced by this mixing method is called "SEC concrete" and shows low bleeding and excellent workability. Concrete employed for the experiment was lean concrete whose compactability is most important. Compactability was evaluated by means of angle of internal friction, cohesion, acceleration propagation, density, strength and modulus of elasticity. From the experimental results, the following conclusions were obtained: a) the mixing method of concrete had great effect on the compactability of produced concrete subjected to vibrating compaction; and b) double-mixed concrete showed better compactability than conventional concrete.
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