Welcome to ROSA P | Performance of chip seals using local and minimally processed aggregates for preservation of low traffic volume roadways. - 26265 | US Transportation Collection
Stacks Logo
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.
 
 
Help
Clear All Simple Search
Advanced Search
Performance of chip seals using local and minimally processed aggregates for preservation of low traffic volume roadways.
  • Published Date:
    2013-07-01
  • Language:
    English
Filetype[PDF-2.36 MB]


Details:
  • Creators:
  • Corporate Creators:
  • Publication/ Report Number:
    CDOT-2013-7
  • Resource Type:
  • Geographical Coverage:
  • NTL Classification:
    NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance ; NTL-HIGHWAY/ROAD TRANSPORTATION-Construction and Maintenance
  • Format:
  • Abstract:
    This report documents the performance of two low traffic volume experimental chip seals constructed using

    locally available, minimally processed sand and gravel aggregates after four winters of service. The projects

    were constructed by CDOT maintenance personnel during the summer of 2009 using two sources of aggregate.

    These aggregates consisted of locally available products representing 1) materials routinely utilized and 2)

    materials that were marginal with respect to aggregate gradation and crushing requirements. An objective of

    this work was to evaluate the feasibility and cost/benefit of using aggregates in chip seals of lower quality than

    normally used with respect to gradation on low volume roadways. Because the cost of transporting high quality

    aggregates from front range sand and gravel and quarry locations to the eastern regions of Colorado is high and

    much of the pavement preservation activities in eastern Colorado are on low volume roadways, utilizing locally

    available aggregates would provide economic benefits if acceptable performance were demonstrated.

    After four winters and three summers service both experimental chip seals are performing well. Condition

    surveys of each pavement were conducted after each winter and summer to document pavement condition.

    Results indicate that pavement distress is in the form of longitudinal and transverse cracking and localized

    flushing due to non-uniform asphalt emulsion application during construction. Based on results from the last

    condition survey, both test pavements should perform acceptably for the next several years assuming no

    significant change in traffic levels. No significant differences were measured in performance for any of the

    evaluation sections.

  • Main Document Checksum:
  • Supporting Files:
    No Additional Files
No Related Documents.
You May Also Like:
Submit Feedback >