Research notes : free draining base materials properties.

Details

• Alternative Title:
  Free draining base materials properties.
• Corporate Creators:
  Oregon. Department of Transportation. Materials and Research Section
• Subject/TRT Terms:
  • Drainage
  • Free water
  • Pavement distress
  • Base course (Pavements)
  • Asphalt based materials
  • Open graded aggregates
  • Pavement design
  • Laboratory tests
  • Asphalt treated permeable base
• Publication/ Report Number:
  RSN 92-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Oregon
• Corporate Publisher:
  Oregon. Department of Transportation. Materials and Research Section
• Abstract:
  In the past few years, the Oregon Department of Transportation (ODOT) has started designing and constructing permeable bases in both flexible and rigid pavements. Two types of permeable bases have been used: one is asphalt treated permeable base and the other is open graded aggregate base. The desirable characteristics (permeability and resilient modulus) of both materials have not been determined. During pavement structural design using the AASHTO Guide, layer and drainage coefficients had to be assumed to establish pavement thickness designs. In addition, construction with the existing open-graded aggregate gradation revealed that the material was less stable and would ravel easily under construction traffic. Because of this ravelling, compaction was poor, the grade was difficult to control, and the open-graded aggregate materials did not provide a suitable surface for paving.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/22721/dot_22721_DS1.pdf
• File Type:
  [PDF - 131.91 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:630186911c9c9e34799748d9ef77805c363a063abea22bc54064b6d428be75ed5333f9cf846489ef91846db58da9e796b27e37f7c49b8464d48b30d5570b7c07