STUDY OF THE WEARABILITY AND POLISH RESISTANCE OF OKLAHOMA'S COARSE AGGREGATES

THIS REPORT DESCRIBES A LABORATORY ATTEMPT TO EVALUATE THE WEARABILITY AND POLISHING CHARACTERISTICS OF "NONPOLISHING" STONES WHEN BLENDED WITH A SOUND, POLISH SUSCEPTIBLE STONE. THE EFFECTS OF CRYSTALLINITY, GRAIN SIZE, CEMENTING STRENGTHS, MINERALOGY, AND OTHER PETROGRAPHIC FEATURES UPON THE WEARABILITY AND POLISH RESISTANCE OF AGGREGATES ARE DISCUSSED. QUARTZ SANDY LIMESTONES AND SANDSTONES WITH L. A. ABRASION WEAR LOSS OF 40 PERCENT OR LESS WERE FOUND TO EXHIBIT GOOD RESISTANCE TO BOTH WEAR AND POLISH. RELATIVELY PURE LIMESTONES (LESS THAN 10 PERCENT INSOLUBLE RESIDUE) WHICH RESIST POLISHING WERE FOUND TO GENERALLY BE LESSER SOUND STONES THAN THE POLISH SUSCEPTIBLE STONE WITH WHICH THEY WERE BLENDED. THE RESULTANT FASTER RATE OF WEAR OF THESE LESS SOUND STONES MAKES THESE AGGREGATES DUBIOUS FOR USE IN BLENDS.

• Supplemental Notes:
  • Contract NO: 70-03-1
• Corporate Authors:

  Oklahoma Department of Highways

  200 NE 21st Street
  Oklahoma City, OK  United States  73105

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • McCasland, W
• Publication Date: 1972-12

Media Info

• Pagination: 75 p.

Subject/Index Terms

• TRT Terms: Coarse aggregates; Durability; Limestone aggregates; Polished aggregates; Quartz; Sandstones; Skid resistance; Wear
• Old TRIS Terms: Polishing characteristics
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00217507
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Files: TRIS, USDOT, STATEDOT
• Created Date: Jul 17 1973 12:00AM