Experimental and environmental analysis of new sound-absorbing and insulating elements in recycled cardboard

Secchi, Simone; Asdrubali, Francesco; Cellai, Gianfranco; Nannipieri, Elisa; Rotili, Antonella; Vannucchi, Irene

doi:10.1016/j.jobe.2015.10.005

Benvenuti nell'Anagrafe della Ricerca d'Ateneo

La valutazione delle attività di ricerca che si svolgono nelle università ha assunto un'importanza rilevante sia per l'intero sistema universitario sia all'interno di ogni singolo ateneo. Roma Tre si è quindi dotata di idonei strumenti informativi in grado di supportare al meglio le azioni di monitoraggio e di valutazione delle attività di ricerca svolte nei propri dipartimentied ha realizzato una Anagrafe della Ricerca di Ateneo.

Paper andcardboard,madewithrecovered fibers obtainedbyrecycling,areanattractive,sustainable material. Recoveredpaperandcardboardaremainlyusedforpackagingpurposes,evenif,inrecentyears, variousresearchesfocusedonthepossibilitytodevelopnewproductsandproposedalternativeappli- cations. This paperpresentsnewdesignsofacousticabsorbersmadeofpartiallyrecycledcardboard,inorder to reducetheenvironmentalimpactofthematerialsusuallyusedfortheacousticcorrectiononindoor environments.Someofthesenewdesignedabsorbersareporousandmakeuseofthevisco-thermal absorption effectsintheporespace.OtherabsorbersarebasedontheHelmholtzresonatorprinciple. Computer modelingsoftwarewasusedtopredicttheperformanceoftheabsorbers;inparticular, different optionsofcardboard-basedpanelsandpaperboardtubeswereinvestigatedtoidentifythe solutions withthebestacousticperformance.Areal-sizeprototypeofasandwichpanelwasthenex- perimentally characterizedinlaboratory.Theabsorptioncoefficient spectrumoftheprototypewas measured accordingtotheprocedureindicatedintheISO354standard.Theresultsshowthatthe measured acousticabsorptioncoefficient ofthematerialmadeusingcardboardwashigherthantheone of traditionalgypsumabsorbers,givinginparticularanincreaseoftheacousticabsorptionatmidand high frequenciesintheorderof40%. A LifeCycleAssessmentanalysiswasalsoperformedtoevaluatetheenvironmentaladvantagesof these materials.Theenvironmentalimpactsoftheproductionofthecardboard-basedpanelwere compared withtheimpactsofconventionalacousticmaterials.Theanalysishighlightedapotentialre- duction ofbothenergydemandandgreenhousegasemissionsduringtheproductionprocessofthe cardboard-basedacousticmaterials. The estimatedCEDandGWPvaluesresult10%and34%respectivelylowerthantheimpactsofa conventionalgypsumboard.

Secchi, S., Asdrubali, F., Cellai, G., Nannipieri, E., Rotili, A., & Vannucchi, I. (2016). Experimental and environmental analysis of new sound-absorbing and insulating elements in recycled cardboard. JOURNAL OF BUILDING ENGINEERING, 5, 1-12.

Titolo:	Experimental and environmental analysis of new sound-absorbing and insulating elements in recycled cardboard
Autori:	Secchi, Simone ASDRUBALI, Francesco Cellai, Gianfranco Nannipieri, Elisa Rotili, Antonella Vannucchi, Irene mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2016
Rivista:	JOURNAL OF BUILDING ENGINEERING
Citazione:	Secchi, S., Asdrubali, F., Cellai, G., Nannipieri, E., Rotili, A., & Vannucchi, I. (2016). Experimental and environmental analysis of new sound-absorbing and insulating elements in recycled cardboard. JOURNAL OF BUILDING ENGINEERING, 5, 1-12.
Abstract:	Paper andcardboard,madewithrecovered fibers obtainedbyrecycling,areanattractive,sustainable material. Recoveredpaperandcardboardaremainlyusedforpackagingpurposes,evenif,inrecentyears, variousresearchesfocusedonthepossibilitytodevelopnewproductsandproposedalternativeappli- cations. This paperpresentsnewdesignsofacousticabsorbersmadeofpartiallyrecycledcardboard,inorder to reducetheenvironmentalimpactofthematerialsusuallyusedfortheacousticcorrectiononindoor environments.Someofthesenewdesignedabsorbersareporousandmakeuseofthevisco-thermal absorption effectsintheporespace.OtherabsorbersarebasedontheHelmholtzresonatorprinciple. Computer modelingsoftwarewasusedtopredicttheperformanceoftheabsorbers;inparticular, different optionsofcardboard-basedpanelsandpaperboardtubeswereinvestigatedtoidentifythe solutions withthebestacousticperformance.Areal-sizeprototypeofasandwichpanelwasthenex- perimentally characterizedinlaboratory.Theabsorptioncoefficient spectrumoftheprototypewas measured accordingtotheprocedureindicatedintheISO354standard.Theresultsshowthatthe measured acousticabsorptioncoefficient ofthematerialmadeusingcardboardwashigherthantheone of traditionalgypsumabsorbers,givinginparticularanincreaseoftheacousticabsorptionatmidand high frequenciesintheorderof40%. A LifeCycleAssessmentanalysiswasalsoperformedtoevaluatetheenvironmentaladvantagesof these materials.Theenvironmentalimpactsoftheproductionofthecardboard-basedpanelwere compared withtheimpactsofconventionalacousticmaterials.Theanalysishighlightedapotentialre- duction ofbothenergydemandandgreenhousegasemissionsduringtheproductionprocessofthe cardboard-basedacousticmaterials. The estimatedCEDandGWPvaluesresult10%and34%respectivelylowerthantheimpactsofa conventionalgypsumboard.
Handle:	http://hdl.handle.net/11590/285389
Appare nelle tipologie:	1.1 Articolo in rivista

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