HYDRATED LIME PASTES CONTAINING COAL-FLY ASH AND POLYAMINOPHENOLIC ADDITIVES FOR THE INERTIZATION OF FLY ASHES FROM MUNICIPAL SOLID WASTES INCINERATORS
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Published:2002
G Rinaldi, F Medici, 2002. "HYDRATED LIME PASTES CONTAINING COAL-FLY ASH AND POLYAMINOPHENOLIC ADDITIVES FOR THE INERTIZATION OF FLY ASHES FROM MUNICIPAL SOLID WASTES INCINERATORS", Challenges of Concrete Construction: Volume 5, Sustainable Concrete Construction: Proceedings of the International Conference held at the University of Dundee, Scotland, UK on 9–11 September 2002, Ravindra K. Dhir, Thomas D. Dyer, Judith E. Halliday
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Starting from some preliminary experimental results on fly ashes from coal thermal plants and from Municipal Solid Wastes incinerators, we formulated a series of mixtures containing hydrated lime as binder, with the attainment of pastes with satisfactory compressive strength and good water-leaching resistance. The seasoning can be carried out at room temperature. The presence of a few percent of some previously synthesised polyaminophenolic additives can increase the strength and reduce the time of curing; additives act also as fluidising agents, with the improvement of workability. The treatment with coal-fly ash, hydrated lime and additives could be a cheaper method for the inertization of municipal solid wastes incinerators fly ashes, with attainment of cured pastes with mechanical strength suitable even for building purposes.
INTRODUCTION
EXPERIMENTAL AND RESULTS
DISCUSSION
CONCLUSIONS
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