EFFECTS OF SIZE SURFACE TEXTURE AND SHAPE OF AGGREGATE PARTICLES ON THE PROPERTIES OF BITUMINOUS MIXTURES

THE THREE BASIC STRENGTH PROPERTIES OF BITUMINOUS CONCRETE CONSIST OF THE COHESIVE STRENGTH OF THE BITUMINOUS MATERIAL, THE FRICTIONAL RESISTANCE BETWEEN THE AGGREGATE PARTICLES, AND THE INTERLOCKING RESISTANCE THAT IS INTRODUCED IN THE COMPACTED STRUCTURE OF THE AGGREGATE COMBINATION. TWO OF THE BASIC STRENGTH PROPERTIES, NOT INCLUDING COHESIVE STRENGTH, ARE PROFOUNDLY AFFECTED BY THE SIZE, SURFACE, TEXTURE, AND SHAPE OF THE AGGREGATE PARTICLES THAT ARE USED IN THE BITUMINOUS MIXTURE. THE FRICTIONAL RESISTANCE AND INTERLOCKING RESISTANCE HOLD PROMISE FOR THE DEVELOPMENT OF ADDITIONAL SHEARING RESISTANCE (OR STABILITY). OPINION IS EXPRESSED THAT THE INHERENT MATERIAL PROPERTIES OF ASPHALTIC BINDERS PRECLUDE THE DEVELOPMENT OF MAJOR INCREASES IN SHEARING RESISTANCE IN THE FORM OF COHESION. THE STRENGTH COMPONENT DEVELOPED IN THE FORM OF COHESION IS SUBJECT TO DETERIORATION OR A STRENGTH LOSS BECAUSE OF AGING AND THE THERMOPLASTIC PROPERTIES OF THE ASPHALT BINDER. PROPERTIES OF THE ASPHALT BINDER.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/sr/sr109/109-005.pdf
• Supplemental Notes:
  • 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:
  • Hargett, Emil R
• Conference:
  • 47th Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1968-1-15 to 1968-1-19
• Publication Date: 1970

Media Info

• Media Type: Print
• Pagination: pp 25 - 26
• Monograph Title: EFFECTS OF AGGREGATE SIZE, SHAPE, AND SURFACE TEXTURE ON PROPERTIES OF BITUMINOUS MIXTURES
• Serial:
  • Highway Research Board Special Report
  • Issue Number: 109
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregate gradation; Aggregates by shape and surface texture; Asphalt; Asphalt concrete; Binders; Bituminous mixtures; Cohesion; Grain size (Geology); Physical properties; Shear strength; Skin resistance
• Uncontrolled Terms: Aggregate shape; Particle size distribution
• Old TRIS Terms: Interlocking
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00211486
• Record Type: Publication
• Files: TRIS, TRB, ATRI
• Created Date: Aug 17 1970 12:00AM