The use of these ashes greatly contributes to the establishment of a circular economy. This encourages further research to optimize the use of otherwise-landfilled-material as possible cement replacement in concrete.Īfter proper pre-treatment procedures, Municipal Solid Waste Incineration (MSWI) bottom ashes show all needed characteristics to substitute part of the Portland clinker in concrete. Durability properties were preserved with 25 % of bottom ash replacement. Mechanical properties were affected by the use of bottom ash, however at a similar level as expected from ordinary coal combustion fly ash. This paper presents mechanical and durability properties of concrete with bottom ash as partial cement replacement in comparison to two reference concrete mixes. Using ground bottom ash as supplementary cementitious material is a potential option for valorisation. This has the double advantage of reducing landfill and at the same time reducing the cement content in concrete (largely responsible of the concrete carbon footprint). The generated bottom ash is a potential material to be used in concrete as partial cement replacement. The incineration of non-hazardous non-recyclable waste (namely municipal solid waste) can be a viable solution. Current societal waste production has reached an alarming peak.
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