plaque d'extrusion

CONT: Conception et construction des chaussées [...] Dans l'un des types de machines [à coffrages glissants] le béton est successivement pervibré, damé par des barres transversales, extrudé par la plaque d'extrusion et lissé transversalement.

CONT: Concrete Pavement ... The paver extrusion plate or screed shall extrude the concrete under load, properly shaping and compacting the concrete into a dense, stable mass.
CONT: The paver-finisher shall spread, consolidate, and shape the plastic concrete to the desired cross section in one pass. The paver-finisher shall be equipped with a full width ""knock-down"" auger, capable of operating in both directions, which will evenly spread the fresh concrete in front of the screed or extrusion plate.