DESIGNING FINE BITUMINOUS MIXTURES FOR HIGH SKID RESISTANCE

THE RESULTS OBTAINED ON A WIDE VARIETY OF SAND MIXES USING THE LABORATORY SKID-RESISTANCE MACHINE DEVELOPED EARLIER AT PURDUE UNIVERSITY ARE PRESENTED. VARIABLES IN THE STUDY INCLUDE MINERAL COMPOSITION, PARTICLE SHAPE, AND GRADATION OF THE AGGREGATE COMPOSING THESE FINE BITUMINOUS MIXTURES. IT HAS BEEN DETERMINED THAT THE LABORATORY RELATIVE RESISTANCE VALUE (SKID RESISTANCE) OF A FINE BITUMINOUS PAVEMENT MIXTURE IS CLOSELY RELATED TO THE AGGREGATE CHARACTERISTICS WHICH DETERMINE THE SURFACE TEXTURE OF THE MIXTURE. MINERAL COMPOSITION OF THE AGGREGATE IS IMPORTANT IN DETERMINING THE SURFACE CHARACTER OF THE AGGREGATE PARTICLES AND, AS SUCH, AFFECTS THE RELATIVE RESISTANCE VALUE OF THE PAVEMENT. MIXTURES MADE FROM ANGULAR SILICA SAND EXHIBITED INITIALLY HIGHER SKID RESISTANCE THAN THOSE MADE FROM ROUNDED SILICA. BUT THESE SHARP EDGES WERE NOT MAINTAINED, SO THAT, AFTER A DEGREE OF WEAR, MIXTURES MADE WITH ROUNDED AGGREGATE SHOWED SUPERIOR RESULTS. AGGREGATE GRADATION IS A MOST IMPORTANT FACTOR AND SHOWS MUCH PROMISE AS A CONTROL FOR DETERMINING THE SKID-RESISTANCE QUALITY OF PAVEMENTS. HIGHER SKID-RESISTANCE VALUES WERE FOUND FOR THE MIXTURES MADE FROM FINER GRADUATIONS. FINENESS MODULUS CAN BE USED FOR PREDICTING SKID-RESISTANCE VALUES, BUT DIFFERENT CURVES MUST BE USED AS THE MAXIMUM AGGREGATE SIZE CHANGES. /AUTHOR/

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/39/39-013.pdf
• Supplemental Notes:
  • Vol 39, pp 173-190, 7 FIG, 3 TAB, 11 PHOT, 8 REF. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Stephens, J E
  • Goetz, W H
• Publication Date: 1960

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Thirty-Ninth Annual Meeting of the Highway Research Board, Washington, D.C., January 11-15, 1960
• Serial:
  • Highway Research Board Proceedings
  • Volume: 39
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregate gradation; Aggregates; Bituminous mixtures; Bituminous pavements; Fineness; Minerals; Modulus; Particles; Pavements; Shape; Skid resistance; Skid resistance tests; Skidding; Texture
• Old TRIS Terms: Aggregate characteristics; Fineness modulus; Particle shapes
• Subject Areas: Geotechnology; Highways; Materials; Pavements;

Filing Info

• Accession Number: 00211643
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Aug 29 1971 12:00AM