Rapid field method for determining the polish susceptibility of carbonate aggregates.

Details

• Creators:
  Patty, Tom S.
• Corporate Creators:
  Texas. Highway Department
• Subject/TRT Terms:
  • Carbonate rocks
  • Field tests
  • Laboratory tests
  • Limestone aggregates
  • Polishing (Aggregates)
  • Texture
• Publication/ Report Number:
  3-20-71-022(4)
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Texas
• Corporate Publisher:
  Texas. Highway Department
• Abstract:
  A quick and simple method by which limestones and related carbonate ; paving aggregates can be rated as to their relative susceptibility to ; polishing has been successfully applied to a wide number of aggregate ; sources used on Texas Highway projects. The technique involves taking ; a small representative sample of the aggregate and subjecting it to a ; dilute hydrochloric acid treatment for about 20 seconds, The etched ; particles are washed, examined under a 10-15X handlens or a stereoscopic ; microscope, and the resulting surface texture is then compared ; to a set of photos or diagrams for rating. The rating system, developed ; fro~ the examination of over a hundred carbonate sources, can assist in ; judging a material's potential susceptibility and resistance to polishing. ; Data from laboratory and field-trial studies when compared to ; duplicate samples tested by the Accelerated Polishing Test (Test Method ; Tex 438-A), shows that a Textural Rating of 1 correlates to a range of ; measured polish values of 25 to 33, a rating of 2 correlates to polish ; values in the range of 34 to 37 and a rating of 3 correlates to polish ; values ·greater than 37.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31460/dot_31460_DS1.pdf
• File Type:
  [PDF - 3.78 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:b604745c4571415dbebabf1b082796fe6ad23cedbe585432b29dbb3dcc7cc0db