Evaluating roadway subsurface drainage practices – phase II : [tech transfer summary].

Details

• Creators:
  Ceylan, Halil
• Corporate Creators:
  Iowa State University. Institute for Transportation
• Corporate Contributors:
  Iowa. Highway Research Board
• Subject/TRT Terms:
  • Subsurface drainage
  • Subdrains
  • Pavement design
  • Pavement distress
  • Pavement maintenance
  • Portland cement concrete
  • Concrete pavements
  • Hot mix asphalt
  • Limestone
• Publication/ Report Number:
  IHRB Project TR-662;InTrans Project 13-473
• Resource Type:
  Brief
• Geographical Coverage:
  Iowa
• Corporate Publisher:
  Iowa State University. Institute for Transportation
• Abstract:
  The presence of subsurface drainage systems (e.g., granular bases or ; outlets) is generally believed to be beneficial to the performance of ; various pavement types. Well-performing subsurface drainage systems ; form an important aspect of pavement design for the Iowa Department ; of Transportation (DOT). ; Iowa Highway Research Board (IHRB) Project TR-643 provided ; extensive insights into Iowa subsurface drainage practices and pavement ; subdrain outlet performance. However, that project’s forensic testing ; and evaluation were carried out in a drought year and during October ; and November of 2012, when relatively little rainfall was recorded. ; Based on the findings of IHRB Project TR-643, the Iowa DOT requested ; an expanded Phase II study to address several additional research needs, ; such as the effects of seasonal variation on subdrain outlet performance, ; condition of composite (HMA over JPCP) pavement subdrain outlets, ; and the characteristics of tufa formation.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28858/dot_28858_DS1.pdf
• File Type:
  [PDF - 1.23 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:d9755c3051b1fbb086c3e0b564c369264340a0b771433ae917bace705db2b0c5633d7d170ee321bb50cadb50056aa6dc82ec088a3d04c039f0e54a6e93bc5053