Implementation of a Fine Aggregate Angularity Test

Details

• Creators:
  Aschenbrener, Timothy B.
• Corporate Creators:
  Colorado. Department of Transportation
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Fine aggregates
  • Angularity
  • Artificial aggregates
  • Natural aggregates
  • Recommendations
  • Specifications
  • Technology
  • NAA Flow Test
  • Angularity Natural Sands
• Publication/ Report Number:
  CDOT-DTD-R-94-6
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report
• Corporate Publisher:
  Colorado. Department of Transportation
• Description:
  Both the contractors and Colorado Department of Transportation have had frustrations with the specification used to limit natural fine aggregates. The angularity of manufactured and natural fine aggregates needs to be more clearly defined for contractual purposes. The purpose of this report is to develop a specification and implementation plan for quantitatively defining manufactured and natural fine aggregates. Two methods were investigated: the AASHTO TP3 and French P18-564 methods. Results from the two tests provided comparable rankings of the individual stockpiles and blended natural and manufactured fine aggregates tested in this study. The AASHTO TP3 is recommended because of sample preparation time. Specifications to limit the natural fine aggregates in quantitative manner and an implementation plan were developed.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93782/dot_93782_DS1.pdf
• File Type:
  [PDF - 1.89 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:5e2c91409b853dafbe9499e20d523a4dda1f4da0f121082c6e58c9e095e49e4ebfa7b6c9ce5ee992f1f8117ae8b1f4f8c10603774002d0357e45bdc321157000