Patent ID: 8190338
Filing Date: 2012-05-29
Classification: E01C

Abstract:
1. A method of compacting a roadway section with a roller having a compaction analyzer operably associated therewith comprising: entering initial input parameters into the compaction analyzer; making a plurality of passes with the roller over a portion of the roadway section; applying a vibratory energy to the portion of the roadway section with the roller as it moves over the portion of the roadway section; repeatedly gathering responsive vibration signals of the roller as it moves over the portion of the roadway section; generating, with the compaction analyzer, estimated density signals representative of estimated densities based upon the responsive vibration signals of the roller and the initial input parameters entered into the compaction analyzer; measuring the density of the roadway section at a plurality of locations on the portion of the roadway section; comparing the measured densities with the estimated densities at the plurality of locations to determine the difference between the measured and the estimated densities; adjusting selected ones of the initial input parameters to the analyzer based on the difference between the measured densities and the estimated densities so that an adjusted density output signal generated by the compaction analyzer will more closely approximate an actual density of the roadway section than does the estimated density signal; and rolling the remainder of the roadway section until the compaction analyzer with the adjusted input parameters generates a desired adjusted output density signal.