Concrete Truss Screed

Truss screeds are a type of construction equipment that uses a central rotating shaft to drive an eccentric block. The resulting vibration force is used to level and compact concrete. The center shaft is usually driven directly by the engine, and the resulting vibration frequency can reach up to 10,000 vpm.The screeds primary purpose, using one part cement to three to five parts sharp sand, is to give a smooth and level floor on which to lay your chosen floor finish. The thickness of the screed allows it to take up normal variations in flatness and levelness of the base on which it is laid.