Reclaimed fly ash as select fill under PCC pavement.

Details

• Creators:
  Bergeson, Kenneth ; Mahrt, Dan
• Corporate Creators:
  Iowa State University. Center for Transportation Research and Education
• Corporate Contributors:
  Iowa. Dept. of Transportation ; Iowa. Highway Research Board
• Subject/TRT Terms:
  Fills Fills (Earthwork)--Iowa Fly Ash Fly Ash--Iowa Pavements
• Publication/ Report Number:
  Iowa DOT project TR-425 ; CTRE Management project 98-38
• Resource Type:
  Tech Report
• Geographical Coverage:
  Iowa
• Corporate Publisher:
  Iowa State University. Center for Transportation Research and Education
• Abstract:
  With the support of the Iowa Fly Ash Affiliates, research on reclaimed fly ash for use as a
  
  construction material has been ongoing since 1991. The material exhibits engineering
  
  properties similar to those of soft limestone or sandstone and a lightweight aggregate. It is
  
  unique in that it is rich in calcium, silica, and aluminum and exhibits pozzolanic properties
  
  (i.e. gains strength over time) when used untreated or when a calcium activator is added.
  
  Reclaimed Class C fly ashes have been successfully used as a base material on a variety of
  
  construction projects in southern and western Iowa. A pavement design guide has been
  
  developed with the support of the Iowa Fly Ash Affiliates.
  
  
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:21b83b935a21cc2dda0049be11c5b91fc20bc7864fe5606e0909274fba5fe9b6fc988e609552a7ab0c92667951958e21f012180faa98e75b9c0217019fc2ecbd
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23580/dot_23580_DS1.pdf
• File Type:
  [PDF - 366.56 KB ]