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- W644640321 abstract "The author describes 4 surfacings laid on 4 structures containing an orthotropic slab: the Cornouaille, Europe, Asnieres and Martigues Viaducts, and their behaviour over 7 or 8 years. Three of these structures were covered with a thick surfacing (6 to 7 cm), comprising generally a polymer-bitumen sealing and binder course laid over a thin bituminous film; this sealing and binder course can be spread with chippings as is the case for the Europe viaduct; it is covered with a bituminous wearing course containing polymer. The Asnieres viaduct has an ultra thin surfacing (8 mm) consisting of three courses of pitch-epoxy binder sprayed with corundum chippings; after 3 years a maintenance layer is applied. No cracks appeared, but wear and plucking occurred. The behaviour of the Cornouaille viaduct surfacing is good, but it carries only light traffic. Deformations and a substantial loss of roughness were observed on the Europe bridge. Lessons were learned from the Martigues Bridge surfacing which showed: very good deformation behaviour, longitudinal cracks and defects due to laying (opening of joints between the lanes, surface cracking, unevenness and insufficient thickness of the sealing course); these defects have been cured on structures built at a later date. (TRRL)" @default.
- W644640321 created "2016-06-24" @default.
- W644640321 creator A5033700318 @default.
- W644640321 date "1981-05-06" @default.
- W644640321 modified "2023-09-24" @default.
- W644640321 title "BRIDGE SURFACINGS ON METAL FLOORS - 4 - SOME STRUCTURES AND TYPES OF SURFACING" @default.
- W644640321 hasPublicationYear "1981" @default.
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