Installation and performance of lightweight aggregate asphaltic concrete test sections.

Details

• Creators:
  Maupin, G. W
• Corporate Creators:
  Virginia Highway Research Council
• Subject/TRT Terms:
  • Lightweight aggregates
  • Asphalt concrete
  • Asphalt concrete--Skid resistance
  • Pavements--Performance
  • Aggregates (Building materials)--Evaluation
• Publication/ Report Number:
  VHRC 70-R9
• Resource Type:
  Tech Report
• Geographical Coverage:
  Virginia
• Corporate Publisher:
  Virginia Transportation Research Council (VTRC)
• Abstract:
  In 1966 and 1968 test sections of asphaltic concrete overlays fabricated with coarse lightweight aggregate and fine limestone were installed in the Roanoke-Bedford area. The experimental mixes used were designed in an attempt to develop skid resistant surface mixes for use in predominantly limestone areas. The mixes incorporated 20%-45% of lightweight aggregate in several different sizes. The purpose of the test sections was to evaluate the skid resistance and durability of several of the lightweight mixes under field conditions. Skid tests have been performed on the test sections at regular intervals and the results indicate that the mixes are maintaining sufficient skid resistance. This possible alternative method of providing good skid resistant roads in areas lacking polish resistant aggregate might provide significant money savings.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/19929/dot_19929_DS1.pdf
• File Type:
  [PDF - 1.06 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:0508467cd419b802bfb302885d0ebc02746922b85f988ad483400d5b7cd24a5cb3484b2a7c28d968d66f1ec0531ced657f760080261295a4037d94fe361b68c7