Improving Chip Seal Performance

This article describes current methods being used to improve chip seal performance, as used in pavement preservation techniques. The author reminds readers that chip seals are an asphalt binder sprayed on a prepared pavement surface, followed immediately by an application of aggregate (the chips). Rolling then firms the chips into the binder. After curing, the surface is broomed to remove any loose aggregate. Chip seals are designed to prevent the intrusion of water and air into the pavement by sealing small cracks in the pavement surface. The author notes that when chip seals are applied to pavements that are in good condition, six to eight additional years of service can be expected. The article reviews the historical approach to chip seals, the typical steps to application, traffic control during chip sealing projects, the use of an engineered, technical approach to chip sealing, and advances in materials, design and testing procedures, and application equipment.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Photos;
  • Pagination: pp 19-22
  • Serial:
    • Asphalt
    • Volume: 28
    • Issue Number: 2
    • Publisher: Asphalt Institute
    • ISSN: 0004-4954

Subject/Index Terms

Filing Info

  • Accession Number: 01531711
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 4 2014 11:31AM