Smooth asphalt placement is essential

by Greg Udelhofen
Created: October 3, 2008

Granite Contracting uses Volvo PF6110 track paver to build only four-lane drag strip in United States

From start to finish, the racing surface is 4,000 feet long, just over three-quarters of a mile.
From start to finish, the racing surface is 4,000 feet long, just over three-quarters of a mile.
The Volvo PF6110 tracked paver the crew used features sonic sensors on the two auger and conveyor drives for more precise handling of material.
The Volvo PF6110 tracked paver the crew used features sonic sensors on the two auger and conveyor drives for more precise handling of material.
To make sure the asphalt lined up perfectly level with the concrete at the transition point, Cosper?s crews fabricated steel rails to align the paver screed to the concrete on each mat placed, with...
To make sure the asphalt lined up perfectly level with the concrete at the transition point, Cosper?s crews fabricated steel rails to align the paver screed to the concrete on each mat placed, with each rail corresponding to the various thicknesses of the three lifts.
The crew used a Volvo DD118HF compactor to achieve density. The 13.2-ton compactor, with its 78.7-inch wide drums, is a high-frequency machine designed for faster rolling speeds.
The crew used a Volvo DD118HF compactor to achieve density. The 13.2-ton compactor, with its 78.7-inch wide drums, is a high-frequency machine designed for faster rolling speeds.
The drag strip features a pair of two-lane strips located side-by-side. The design will allow racing to continue in the event of an oil-down that requires extensive cleanup to one of the lanes.
The drag strip features a pair of two-lane strips located side-by-side. The design will allow racing to continue in the event of an oil-down that requires extensive cleanup to one of the lanes.

Pavement smoothness was tested using the California Profilograph method and results on even the base course lift were four-times better than the allowed specifications.