Development of design guidelines for proper selection of graded aggregate base in Maryland state highways : [research summary].

Details

• Creators:
  Aydilek, Ahmet
• Corporate Creators:
  Maryland. State Highway Administration
• Subject/TRT Terms:
  • Base course (Pavements)
  • Aggregate gradation
  • Stiffness
  • Drainage
  • Mechanistic-empirical pavement design
  • Modulus of resilience
  • Moisture content
  • Deformation
  • Field tests
  • Laboratory tests
• Publication/ Report Number:
  SP109B4G-1
• Resource Type:
  Brief
• Geographical Coverage:
  Maryland
• Corporate Publisher:
  Maryland. State Highway Administration
• Abstract:
  Millions of tons of graded aggregate base (GAB) materials are used in construction of ; highway base layers in Maryland due to their satisfactory mechanical properties. The ; fines content of a GAB material is highly variable and is often related to the crushing ; process, stockpiling in the quarry, transportation and construction at the site. The ; mechanical and drainage properties of GAB material are the level one input in ; mechanistic pavement design. The crushing of the stone at the quarry generally does ; not decrease the mechanical strength and stiffness of the material delivered to the site. ; However, the Maryland State Highway Administration (SHA) is experiencing ; difficulties in achieving proper drainage through the base layers due to occasionally ; high fines content of the delivered GAB materials.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28446/dot_28446_DS1.pdf
• File Type:
  [PDF - 74.28 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:2e5fb2d448ca23d2cc7ef85b12f9170fd840e96c34e4df7a853353b89d40c3ed