ASPHALT PAVER WITH COMPACTION COMPENSATING SYSTEM

摘要

An improved method and an improved asphalt paver for a compaction compensating system is provided for compensating differential compaction in as asphalt paving mat. The asphalt paver has a compaction compensating system that includes a nominal reference, such as an elongate averaging ski, for determining the general profile of the underlying terrain on which a mat of asphalt material is being placed by the paver. The improved system also includes a compensating ski for determining localized irregularities of the subgrade and a control system for responsively altering the thickness of the mat being placed by the paver to compensate for differential compaction of the asphalt material suchthat a generally planar asphalt paving surface is obtained after compaction thereof. Modified embodiments of the improved compaction compensating system include use of a stringline for the reference and/or one or two non-contacting sensors for communicating the general profile and localized irregularity determinations of the subgrade to the control system.