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Effect of the Incorporation of Municipal Solid Waste Incineration Fly Ash in Cement Pases and Mortar. I. Experimental Study.


pdf icon Effect of the Incorporation of Municipal Solid Waste Incineration Fly Ash in Cement Pases and Mortar. I. Experimental Study. (1373 K)
Remond, S.; Pimienta, P.; Bentz, D. P.

Cement and Concrete Research, Vol. 32, No. 2, 303-311, 2002.

Keywords:

cement paste; mortar; solid waste; fly ash; hydration products; waste management; concretes

Abstract:

This work falls within the scope of a genera! problem regarding the assessment of concrete manufactured from waste materials. The main objective is to study the long-term evolution of these materials during the leaching process, using the cellular automaton-based hydration model developed at the National Institute of Standards and Technology. The work is based on the analysis of mortars and ccment pastes containing experimental waste: Municipal Solid Waste Incineration fly ash (MSWI fly ash). The study therefore uims to develop a methodology for assessing concrete manufactUred from waste, and not to study a process or a formulation enabling the incorporation of the waste in concrete. The physical, chemical and mineralogical churacteristics of MSWI fly ash were first analysed to introduce them into the model. A simplified quantitative mineralogical composition of the ash was proposed. The performance charucteristics (setting times, compressive strengths, shrinkage, etc.) for mortars containing ash were then studied.