SYNTHETIC AGGREGATES OF HIGH RESISTANCE TO POLISHING: PART 2-CORUNDUM-RICH AGGREGATES

THE TRANSPORT AND ROAD RESEARCH LABORATORY IS STUDYING SYNTHETIC AGGREGATES WITH AN EXCEPTIONAL RESISTANCE TO POLISHING BY TRAFFIC. SUCH AGGREGATES ARE REQUIRED FOR THE SURFACE TREATMENT OF DIFFICULT ROAD SITES WHERE A HIGH RESISTANCE TO SKIDDING IS REQUIRED AND WHERE THE POLISHING ACTION OF TRAFFIC IS MOST SEVERE. THIS REPORT DESCRIBES A STUDY OF A CLASS OF CORUNDUM-RICH AGGREGATES, INCLUDING CALCINED BAUXITES, WHICH OWE THEIR HIGH POLISHING-RESISTANCE TO THEIR EXTREME HARDNESS. THE REPORT GIVES THE RESULTS FROM SUCH AGGREGATES OF CHEMICAL TESTS, MINERAL ANALYSES BY X-RAY DIFFRACTION AND AN EXAMINATION OF SURFACE MICRO- TEXTURE USING A STEREOSCAN ELECTRON MICROSCOPE; IT INCLUDES A DISCUSSION OF THESE RESULTS IN RELATION TO THE AGGREGATES' PHYSICAL AND MECHANICAL CHARACTERISTICS AND THEIR PERFORMANCE IN ROAD TRIALS (A)

• Supplemental Notes:
  • TRRL REPORT LR 467
• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • Tubey, L W
  • Hosking, J R
• Publication Date: 1972

Language

• English

Media Info

• Features: Photos; References; Tables;
• Pagination: 31 p.
• Serial:
  • Issue Number: lr4

Subject/Index Terms

• TRT Terms: Artificial aggregates; Chemical analysis; Polished aggregates; Skid resistance; Skidding; Texture
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00217947
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: R&d Rpt
• Files: TRIS
• Created Date: Jun 5 1974 12:00AM