Quantification of Shape, Angularity, and Surface texture of Base Course Materials

Details

• Creators:
  Janoo, Vincent C.
• Corporate Creators:
  U.S. Army of Corps of Engineers
• Subject/TRT Terms:
  • Aggregates by shape and surface texture
  • Base course (Pavements)
  • Coarse aggregates
  • Test procedures
  • Pavement performance
• Resource Type:
  Research Paper
• Geographical Coverage:
  United States
• Corporate Publisher:
  U.S. Army of Corps of Engineers
• Abstract:
  A state-of-the-art review was conducted to determine existing test methods for characterizing the shape, angularity, and surface texture of coarse aggregates. The review found direct methods used by geologists to determine these characteristics. These methods involve physical measurements of individual aggregates and are very laborious and time consuming. Engineers have developed index tests (indirect methods) to quantify the combined effect of the shape, angularity, and surface texture of coarse aggregates in terms of changes in the voids in the aggregate bulk. A description of both the direct and indirect methods is provided in the report. Also, the effect of shape, angularity, and surface texture of coarse aggregates on the base course performance was reviewed. It was found that there is some contradiction in the published data on resilient modulus. Shape, angularity, and surface texture of coarse aggregates clearly influence the angle of internal friction.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/14065/dot_14065_DS1.pdf
• File Type:
  [PDF - 466.00 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:7d62bc2fa382a7f7e4ad30e567740b911b8e035b3947e87a9c85001d46d0f4f7980078588ed213f04eadd762ca9e27a88943716a9e0fbedf5ab34dff14aabc10