title: Assessment of an action against environmental noise: Acoustic durability of a pavement surface with crumb rubber.
abstract: Environmental noise is a worldwide problem that has an adverse effect in the quality of life of urban population. Some work has shown that there is a correlation between environmental noise and health issues as sleep disturbance or annoyance. This study presents the time evolution of a test track fabricated with an asphalt mixture with 20% of crumb rubber by weight of bitumen, added by the wet process. A complete surface characterization has been performed by determining tire/pavement sound levels, road texture profiles, in-situ dynamic stiffness and sound absorption of compacted and extracted sample cores. Two measurement campaigns were performed: just after mixture laying and after 3 years in service. This study confirms that the use of crumb rubber as a modifier of bituminous binders (CRMB) can improve the pavement characteristics: gap-graded mixtures with crumb rubber can be used in the action plans as urban rehabilitation measure to fight noise pollution. However, this noise reduction seems to decrease with age at a rate of approximately 0.15 dB(A) per year.
authors.affiliation: University of Castilla-La Mancha, Laboratory of Acoustics Applied to Civil Engineering, Avda. Camilo José Cela s/n, 13071 Ciudad Real, Spain.
authors.forename: V F
authors.initials: VF
authors.lastname: Vázquez
authors.affiliation: University of Liège, Environmental Sciences and Technologies Dept., Passage des Déportés 2, 5030, Gembloux, Belgium.
authors.forename: J
authors.initials: J
authors.lastname: Luong
authors.affiliation: Empa, Swiss Federal Laboratories for Material Science and Technology, Road Engineering Laboratory, Ueberladstr. 129, CH-8600, Duebendorf, Switzerland.
authors.forename: M
authors.initials: M
authors.lastname: Bueno
authors.affiliation: University of Castilla-La Mancha, Laboratory of Acoustics Applied to Civil Engineering, Avda. Camilo José Cela s/n, 13071 Ciudad Real, Spain.
authors.forename: F
authors.initials: F
authors.lastname: Terán
authors.affiliation: University of Castilla-La Mancha, Laboratory of Acoustics Applied to Civil Engineering, Avda. Camilo José Cela s/n, 13071 Ciudad Real, Spain. Electronic address: santiago.exposito@uclm.es.
authors.forename: S E
authors.initials: SE
authors.lastname: Paje
mesh_terms: D000162:Acoustics; D003252:Construction Materials; D004781:Environmental Exposure / Q000517:prevention & control*; D006838:Hydrocarbons; D018986:Motor Vehicles; D009624:Noise, Transportation / Q000517:prevention & control* / Q000706:statistics & numerical data; D012408:Rubber
chemical_list: D006838:Hydrocarbons; C006647:asphalt; D012408:Rubber
keywords: Crumb rubber; Directive 2002/49/EC; Noise action plans; Traffic noise