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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: Some Properties of Concrete with Highly Active Rice-Husk Ash
Author(s): H. Yamamichi, F. Qingge, M. Shoya, and S. Sugita
Publication: Special Publication
Appears on pages(s): 891-906
Keywords: concrete; durability; rice husk ash; strength property
Abstract:In this study, some basic characteristics of the concrete incorporating the highly active rice-husk ash (RHA) such as compressive strength, freezing and thawing resistance, carbonation, and water permeability wereinvestigated. The results show that with different percentage of RHA to the cement, the compressive strength of concrete increased both at normal and at low water-hinder ratio, especially at low water-binder ratio. The freezing and thawing resistance and water permeability of concrete incorporating 10 and 20% RHA improved significantly, although the carbonation showed the promoted tendency. Furthermore, the analysis of consumed Ca(OH)2 in the hardened RHA mortar by the thermogravimetric analysis (TG-DTA) was used in evaluating the maximum percentage for use of the highly-active RHA for use in concrete. At the same time, the upper limit to the RHA percentage in concrete was determined.
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