MICRO-TEXTURE MEASUREMENTS OF PAVEMENT SURFACES

A REVIEW OF TEXTURE-MEASURING TECHNIQUES WAS MADE AND A LIMITED NUMBER OF MICROTEXTURE MEASUREMENTS OF PAVEMENT SURFACES WAS OBTAINED WITH THE CLEVITE BL-185 SURFINDICATOR. THIS INSTRUMENT IS GENERALLY USED TO MEASURE UNIFORM TEXTURES ON SURFACES SUCH AS THOSE FOUND ON FINISHED METALLIC PARTS. THE RESULTS REVEALED THAT THE SURFINDICATOR HAS SOME UNDESIRABLE FEATURES FOR MEASURING MICRO-TEXTURES OF PAVEMENT SURFACES. BASED ON A LIMITED NUMBER OF TESTS, A TREND WAS FOUND BETWEEN SKID NUMBERS AT 40 MPH AND MICRO- TEXTURE VALUES; HOWEVER, THE CORRELATION COEFFICIENT BETWEEN THE PARAMETERS WAS NOT VERY HIGH. SIGNIFICANT DIFFERENCES BETWEEN THE MICRO-TEXTURES OF SOME PAVEMENT SURFACES WERE DETERMINED BY THE DEVICE. RECOMMENDATIONS ARE GIVEN TO CONTINUE MICRO-TEXTURE MEASUREMENTS WITH THE SURFINDICATOR ON A LIMITED BASIS AND TO DEVELOP ANOTHER INSTRUMENT TO OBTAIN MACRO-TEXTURES AS WELL AS MICRO-TEXTURES. /AUTHOR/

• Supplemental Notes:
  • 138-1, 138
• Corporate Authors:

  Texas A&M University, College Station

  College Station, TX  United States  77840

  Texas State Department of Highways & Public Transp

  11th and Brazos Streets
  Austin, TX  United States  78701

  Bureau of Public Roads /US

  400 7th Street, SW
  Washington, DC  United States  20590
• Authors:
  • Gallaway, B M
  • Tomita, H
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Measuring instruments; Pavements; Skid resistance; Surface course (Pavements); Texture
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00206414
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS, STATEDOT
• Created Date: Jul 14 1970 12:00AM