Dealing With Winter Potholes: Injection patching picks up the pace of permanent winter patching

This article describes how injection patching is becoming the best way to fill potholes during winter months when hot-mix materials cannot be used. The more conventional method—throw-and-roll, in which a crew tosses filling material into the pot hole and then compacts it by rolling truck tires over it several times—sometimes lasts only a week or a day. With injection patching, agencies clean the hole with a high-volume blower, apply a tack coat of hot emulsion, shoot aggregate and hot emulsion with forced air into the hole, then top the patch with a dust coat of aggregate. In most instances, a single operator does not have to get out of the cab, making the patch far safer to repair. In addition, the patch lasts far longer: on average, repairs stay in place for up to 43 months according to one study.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Illustrations; Photos;
  • Pagination: pp 20-23
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01015005
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS
  • Created Date: Dec 7 2005 6:31PM