title: Characterization of crumb rubber from end-of-life tyres for paving applications.
abstract: Crumb rubber (CR) derived from grinding of end-of-life tyres (ELTs) may be successfully used as a bitumen modifier or as a supplementary component in the production of bituminous mixtures employed for the construction and maintenance of road pavements. However, CRs deriving from different sources and production processes yield effects on performance of corresponding paving mixtures under traffic loading and on gaseous emissions produced during laying on site which may change considerably depending upon their physical and chemical properties. In order to quantitatively assess the possible variability of CR characteristics, 16 samples were taken from 9 Italian and 2 foreign ELT processing plants. Investigation activities included field surveys, during which plants were examined in detail, and laboratory tests, which focused on physical and chemical characterization of CR. Based on the analysis of available technical information and experimental data, it was possible to find relationships between the peculiar characteristics of treatment cycles and corresponding CR properties.
authors.affiliation: Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy. Electronic address: mariachiara.zanetti@polito.it.
authors.forename: M C
authors.initials: MC
authors.lastname: Zanetti
authors.affiliation: Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Fiore
authors.affiliation: Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
authors.forename: B
authors.initials: B
authors.lastname: Ruffino
authors.affiliation: Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
authors.forename: E
authors.initials: E
authors.lastname: Santagata
authors.affiliation: Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
authors.forename: D
authors.initials: D
authors.lastname: Dalmazzo
authors.affiliation: Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Lanotte
mesh_terms: D001336:Automobiles; D003252:Construction Materials / Q000032:analysis*; D006838:Hydrocarbons / Q000032:analysis*; D007558:Italy; D012037:Refuse Disposal; D012408:Rubber / Q000032:analysis*; D018505:Waste Management / Q000379:methods*; D014866:Waste Products / Q000032:analysis*
chemical_list: D006838:Hydrocarbons; D014866:Waste Products; C006647:asphalt; D012408:Rubber
keywords: Chemical characterization; Crumb rubber; End-of-life tyres; Physical properties; Road pavements