Laboratory mix design of asphalt mixture containing reclaimed material
- Autori: Lo Presti, D.; Khan, R.; Abdul Hassan, N.; Airey, G.; Collop, A.
- Anno di pubblicazione: 2014
- Tipologia: Articolo in rivista
- OA Link: http://hdl.handle.net/10447/596793
Abstract
Thispaperpresentsastudyontheproductionofasphalttestspecimensinthelaboratorycontainingreclaimedasphalt.Themixtures consideredwerestonemasticasphaltconcretemixturescontainingupto30%ofreclaimedasphalt.Specimenswerecompactedto thereferencedensityobtainedfromtheMarshallmixdesign.Gyrationcompactionmethodwasusedforpreparingspecimensfor theexperimentalprogramme,whilecoringandcuttingmethodsandX-raycomputedtomography(CT)wereusedtoinvestigatethe changeinpropertieswithinthespecimensandtovalidatetheselectedmethodology.Thestudyconcludedthatgyratorycompaction issuitabletoproducehomogeneoustestspecimensalsoformixturescontaininghighamountofreclaimedasphalt.Nevertheless, preliminarytrialsforeachmaterialaremandatory,aswellasfinalcoringandtrimmingofthespecimensduetosideeffects.