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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: Classification of Fly Ash According to Japan Industrial Standard, JIS A 62014999
Author(s): S. Nagataki, F. Tomosawa, T. Kanazu,
and T. Yamamoto
Publication: Special Publication
Appears on pages(s): 29-42
Keywords: fly ash; Japan industria
l standard; mineral admixture;
Abstract:The Japan Industrial Standard (JIS) of “Fly Ash for Use in Concrete, JIS A 620 1 ” was revised in 1999 in order to widen the utilizable amount of fly ash as a mineral admixture. The featured points in this revision were that; [l] fly ash with high loss on ignition (LOI) ranging from 5.0% to 8.0% is specified as Class-III,  fly ash with low Blaine fineness ranging from 15OOcm’/g to 2500cm’ig is specified as Class-IV,  high quality fly ash with LO1 less than 3.0% and Blaine fineness more than 5000cm2/g was specified as Class-I. Most of the fly ash qualified in JIS A 6201-1996 would be specified as Class-II. Class-III and Class-IV fly ash wouldn’t meet the requirement of JIS A 6201-1996. This paper describes the background and the contents of the revision of JIS A 6201.
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