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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: Utilization of Coal Ash Produced from Pressurized Fluidized Bed Combustion Power Plant as a Concrete Mineral Admixture
Author(s): K. Fukudome, N. Shintani, T. Saitoh,
T. Kita and H. Sasaki
Publication: Special Publication
Appears on pages(s): 527-544
Keywords: admixtures, compressive strength, concrete, durability, fly ash, shrinkage.
Abstract:A pressurized fluidized-bed combustion power plant (PFBC) is a coal-fired thermal power plant specially developed for the enhancement of generating efficiency and the reduction of environmental loads. The physico-chemical properties of coal ash produced from this type of power plant (PFBC ash) are different from those of ordinary fly ash, because coal is mixed with pulverized limestone and burnt at a lower temperature than that in the conventional power generation system. This study explores the feasibility of utilizing PFBC ash as a concrete mineral admixture. It has been found that the coal ash from a secondary cyclone dust collector enhances the strength of concrete although it cannot improve the fluidity. A series of tests, including those for durability and changes in length, show that the durability of concrete containing the coal ash so produced is adequate for practical applications.
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