Paving a 6-Inch Concrete Overlay on Kansas Interstate 70

Guntert & Zimmerman
Created: May 29, 2012

Koss Construction milled and paved a 6-inch bonded concrete on I-70 in 2011 for a total of 725,000 square yards and will continue work in 2012 for a total of 727,000 square yards

In 2011, Koss paved a total of 725,000 square yards. In 2012, Koss will pave a total of 727,000 square yards at a cost of $21.9 million.
In 2011, Koss paved a total of 725,000 square yards. In 2012, Koss will pave a total of 727,000 square yards at a cost of $21.9 million.
Last year, Koss Construction milled out 6 inches and slipformed two projects with concrete on 15.1 miles of four-lane Interstate 70 in western Kansas.
Last year, Koss Construction milled out 6 inches and slipformed two projects with concrete on 15.1 miles of four-lane Interstate 70 in western Kansas.
Using a Guntert & Zimmerman S850 Quadra four-track paver to pave 30 feet wide, the contractor averaged just 8.5 inches/mile on a zero blanking band over the two projects.
Using a Guntert & Zimmerman S850 Quadra four-track paver to pave 30 feet wide, the contractor averaged just 8.5 inches/mile on a zero blanking band over the two projects.
Using Colorado's pavement design criteria, Koss will pave a 6-inch bonded concrete overlay over existing asphalt for a total of 1.45 million square yards of concrete.
Using Colorado's pavement design criteria, Koss will pave a 6-inch bonded concrete overlay over existing asphalt for a total of 1.45 million square yards of concrete.

It is easier to achieve low smoothness numbers on the thinner 6-inch pavement because the paver is not pushing a big head of material. "You can push the small head of mud, and you are not extruding a lot of concrete either," Kennedy said.