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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: Mineralogical and Chemical Properties of Mortar Incorporating Coal Ash Produced by Fluidized Bed Combustion
Author(s): N. Shintani, T. Saitou, H. Sasaki and T. Kita
Publication: Special Publication
Appears on pages(s): 431-448
Keywords: admixtures; concrete; hydration.
Abstract:A pressurized fluidized bed combustion thermal power plant (PFBC) is a coal-fired thermal s ecially for the enhancement ower plant developed e ficiency and generating the reduction of environmental loads. The physicochemical 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 crushed limestone and burned at a lower temperature than that in the conventional power generation system. This study explores the feasibility of utilizing PFBC ash as a concrete admixture. It has been found that the coal ash from a secondary cyclone dust collector enhances the strength of concrete a though it cannot improve the fluidity. of chemical anal ses A variety why the coal as were carried out to explain the reason so produced has such effects. The fly ash obtained from a secondary cyclone dust collector was found to enhance mortar strength due to the hydration of sulfur. containing minerals such as gy sum reaction of fine-grain silica. Thus, tK and the pozzolanic concrete admixture has been verified. feasibility of using it as
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