Reuse of woody biomass fly ash in cement based materials

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Reuse of woody biomass fly ash in cement based materials

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#Energie Rinnovabili #Idroelettrico

pubblicazioni - Articolo

Reuse of woody biomass fly ash in cement based materials

La cenere leggera da biomassa legnosa può essere riutilizzata nelle miscele cementizie come aggiunta minerale o come filler e in parziale sostituzione della sabbia. Anche se le ceneri esaminate di per sé non soddisfano le specifiche europee relative al loro utilizzo come aggiunte minerali nei materiali cementizi, buona parte dei cementi con esse confezionati forniscono soddisfacenti proprietà tecnologiche e pure soddisfacente risulta il loro impiego nei calcestruzzi di bassa qualità.

The reuse of woody biomass fly ash (WBFA) as a mineral admixture or as a filler/partial sand replacement material in cementitious mixes was investigated. Three different WBFAs were used, two coming from virgin wood and one from treated wood combustion. The physical and chemical characteristics of these ashes and the technological properties (workability, setting, compressive strength) of cementitious mixes incorporating WBFA were evaluated.

It was found that, in spite of the satisfactory technological properties exhibited by most related blended cements, the studied WBFAs did not meet the EN requirements for reuse as mineral admixtures, even if they were subjected to a preliminary water-washing treatment. The reuse of raw wood fly ash as a filler/ partial sand replacement material was found to be satisfactory and possible for low-quality concrete.

Progetti

Evoluzione e sviluppo del sistema elettrico nazionale (EvolRete2014)

Tag correlate

#Energie Rinnovabili #Idroelettrico

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pubblicazioni - Articolo

Reuse of woody biomass fly ash in cement based materials

pubblicazioni - Articolo

Reuse of woody biomass fly ash in cement based materials

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