REHAB WORK THAT DOESN'T TAKE A TOLL ON TRAFFIC FLOW

Speed and longevity are the key components of the rehabilitation program underway on the West Virginia Turnpike, Interstate-77. During the summer of 1998, a 10-mi (16-km) section near Beckley, West Virginia, is being rubblized and reconstructed with a full-depth hot mix asphalt overlay. The work is being completed at an impressive rate--one lane mi (1.6 lane km) per day--and traffic is flowing through the work zone. An 18-mi (29-km) section of the Parkway that was reconstructed in 1989 using this method is still providing a smooth ride and showing few signs of aging. A multiple-head breaker, capable of rubblizing the full 12-ft (4-m) width of the portland cement concrete pavement lane in a single pass, is being used. This allows the contractor to work in one lane while the other lane stays open to traffic. Following close behind is a vibratory roller fitted with an Elliott "Z" pattern grid. After a final pass with a vibratory roller, the surface is compacted and the fractured particles are "keyed" into place and ready for the base course. Paving operations follow right behind, further speeding the reconstruction and enabling both lanes to be open to traffic from Friday through Sunday when traffic volumes on the Turnpike are at their highest. Turnpike officials are so enthusiastic about the rehabilitation project that they joined with the Flexible Pavements Council of West Virginia, the contractor, and the National Asphalt Pavement Association in hosting an open house in June 1998, which attracted agency officials, consultants, and contractors from 15 states. A sidebar highlights the open house.

• Supplemental Notes:
  • Page Range: pp 9-11, 13
• Publication Date: 1998

Language

• English

Media Info

• Features: Photos;
• Pagination: 40 p.
• Serial:
  • HMAT: Hot Mix Asphalt Technology
  • Volume: 3
  • Issue Number: 2
  • Publisher: National Asphalt Pavement Association (NAPA)

Subject/Index Terms

• TRT Terms: Comminution; Concrete pavements; Construction equipment; Construction scheduling; Highway maintenance; Hot mix asphalt; Interstate highways; Pavement overlays; Portland cement concrete; Rehabilitation; Rollers; Traffic flow; Vibratory compaction; Vibratory equipment; Work zone traffic control
• Geographic Terms: West Virginia
• Subject Areas: Highways; Maintenance and Preservation; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 00758622
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Jan 26 1999 12:00AM