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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: Effects of Co-Combustion of Secondary Fuels on Fly Ash Quality
Author(s): F. J. M. Lamers, J. L. J. Vissers,
and J. W. van den Berg
Publication: Special Publication
Appears on pages(s): 433-458
Keywords: alternative fuels; co-combustion; concrete; durability; fly
ashes; leaching; mortars; regulations; strength development
Abstract:In the Netherlands the government allows the co-combustion of a maximum of 10% of secondary fuels together with coal. To show whether the quality of fly ashes is affected by co-combustion, a broad research program was performed in which both the technical and the environmental quality of concrete with fly ashes from co-combustion were evaluated in comparison to the quality of concrete with reference fly ashes. In the research program, fly ashes from co-combustion of sewage sludge, paper sludge, pet cokes, several types of biomass and a type of liquid hydrocarbon were evaluated. Both the technical and the environmental quality of most ashes from co-combustion were shown to be comparable to that of regular fly ashes. As a result of the outcomes of the research program the Dutch regulations for fly ash as a filler or part of the cementitious material were adjusted to make utilization of fly ashes from co-combustion possible. European legislation is in preparation.
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