Preparation of Rumble Strips Before Overlayment
Record Type: DOT
Since the use of rumble strips is relatively new (mid to late 1990s), rehabilitation of the pavements where they have been installed is just now beginning. New Hampshire performed its first overlay of rumble strips along the F. E. Everett Turnpike in Nashua during the 2003 construction season. The overlay utilized two asphalt mixes. Both resulted in the rumble strips reflecting through to the new surface. Inquiries of other state Departments of Transportation (DOTs) indicated a wide range of opinion from grinding the rumble strip and shimming before paving, to doing nothing provided the strip is less than a ½-inch deep and the overlay is more than 4 inches. The opinions appear to be based on applying general paving experience rather than knowledge of paving over this specific condition. The determination of appropriate techniques appears to be timely to avoid encountering problems in this area. The project hopes to develop a specification defining materials, sequences and/or options to perform this operation successfully.
Start date: 2004/8/1
End date: 2008/9/30
Contract/Grant Number: 13733V
Total Dollars: 20000
Source Organization: New Hampshire Department of Transportation
Notes: This project was presented to the NHDOT Research Advisory Council by the Bureau of Materials & Research in April 2004.
Date Added: 12/28/2004
Index Terms: Rumble strips, Overlays (Pavements), Road construction, Asphalt mixtures, State departments of transportation, Pavements, Paving, Grinding, Research projects, New Hampshire,