Evaluation of Koch Materials' RoadArmor (Registered Trademark) Macro-surfacing

This research report is part of a follow up to a RoadArmor (Registered trademark) maintenance project constructed in 1999 on Grantham Road in Cumberland County. The Grantham Road project showed severe snowplow damage after one winter. Koch Materials reworked their emulsion in order to improve its performance. Two locations in Engineering District 8-0 were picked to experiment with this new emulsion for RoadArmor (Registered trademark). The projects were evaluated for constructability and monitored for loss of stone over a 6-month period. The two project locations had mixed performance results over the winter season. Some problems that occurred included flushing, reflective cracking, aggregate loss, snow plow damage, and large areas of delamination. Due to marginal performance and a higher cost, this product does not warrant further use by the Pennsylvania Department of Transportation at this time.


  • English

Media Info

  • Media Type: Print
  • Edition: Final Report
  • Features: Appendices; Figures; Photos; Tables;
  • Pagination: 76p

Subject/Index Terms

Filing Info

  • Accession Number: 01002005
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-PA-2004-004-02-053, RP 2002-053
  • Created Date: Jul 11 2005 3:11PM