City Streets Improve with Hot In-Place Recycling

This article shows how hot in-place recycling of asphalt pavements can save 30 percent compared to mill and fill. The article describes how Chandler, Arizona is celebrating its tenth anniversary with hot in place Recycling (HIR) this year. Since 2001, the city has repaved nearly 1.3 million square yards of asphalt roadways, or 30 centerline miles, with the HIR process. The majority of those roads are four- and six-lane urban arterials that carry heavy traffic volumes. The arterial roads for where HIR was used are structurally sound, but on the HIR candidate roads there is longitudinal and transverse cracking, some minor alligator cracking, some surface raveling and some shoving. The article shows how the city has learned that HIR is not a cure-all. Some roads still need milling and filling. But the HIR process costs in the range of 30-percent less than a 2-inch mill-and-fill. Based on a 2011 project, the cost of HIR runs $12.70 per square yard. That includes everything – edge milling, the virgin hot-mix overlay, utility adjustments, striping, and street light replacements. The city council and senior management have always been supportive of cost-effective and the newer green-technology recycling projects. And the HIR is a very fast-moving, single process that limits the time contractors spend on the road. Traffic can return to an HIR road within a half-hour to forty minutes of being compacted. Plus, the HIR process permits the contractor to adjust the crown on a roadway.

• Record URL:
  • http://www.betterroads.com/asphalt-recycling-section-2/?pg=4
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1519687
• Publication Date: 2011-7

Language

• English

Media Info

• Media Type: Print
• Features: Photos;
• Pagination: pp 33, 35-36
• Serial:
  • Better Roads
  • Volume: 81
  • Issue Number: 7
  • Publisher: James Informational Media, Incorporated
  • ISSN: 0006-0208
  • Serial URL: http://www.betterroads.com

Subject/Index Terms

• TRT Terms: Alligator cracking; Arterial highways; Asphalt pavements; Hot in-place recycling; Milling; Pavement cracking; Pavement maintenance; Pavement performance; Recycled materials; Stripping (Pavements); Transverse cracking
• Geographic Terms: Chandler (Arizona)
• Subject Areas: Maintenance and Preservation; Pavements; I22: Design of Pavements, Railways and Guideways; I60: Maintenance;

Filing Info

• Accession Number: 01349430
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 10 2011 10:42AM