Method for laying down a pavement, a screed and a road paver

A method for laying down on a substrate a pavement having a selectable pavement thickness consisting of paving material on the substrate with a screed of a road paver which comprises:

• pre-compacting the paving material with a substantially vertical movement of a tamper bar of a compaction unit attached to the screed, using a selectable stroke of the tamper bar and a selectable frequency of the tamper bar for the pre-compacting while the pavement is being laid down by the screed using paving parameters including a selectable setting angle of the screed relative to the substrate and a selectable paving speed,
• entering a target pre-compaction value into a control system for adjusting the stroke of the tamper bar relative to the screed sole plate using at least the paving speed or the pavement thickness as control variables for adjusting the tamper bar stroke and automatically adjusting the setting angle of the screed in response to a change in at least one of the paving speed or the pavement thickness,
• automatically adjusting with the control system at least the stroke of the tamper bar relative to the sole plate of the screed in response to at least one of the paving speed or the setting angle and wherein the stroke of the tamper bar is adjusted continuously or in steps, and hydraulically, electrically or mechanically with an adjusting mechanism arranged between an eccentric shaft and a rotatable eccentric bushing carried by the eccentric shaft and driving the tamper bar in relation to the screed sole plate, the adjusting mechanism rotating and positioning the eccentric bushing in relation to the eccentric shaft when adjusting the stroke of the tamper bar.