Project 0092-04-10: Monitoring and Evaluation of Fly Ash Stabilized Subgrade Constructed by Wisconsin DOT (In Progress)

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Project ID: DOT 0092-04-10
Title: Monitoring and Evaluation of Fly Ash Stabilized Subgrade Constructed by Wisconsin DOT
PI: Tuncer Edil
Department of Civil and Environmental Engineering
University of Wisconsin-Madison
Project: One of the WisDOT-identified subgrade improvement methods entails the stabilization of soft subgrade soils by the incorporation of fly ash. Promising performance on two experimental sections in Wisconsin, combined with success in several other states, suggest the need for a more rigorous evaluation of the performance of fly ash-enhanced subgrades in Wisconsin. The objective of this study is to evaluate a 3-5 mile section of roadway that will be built in 2004 with fly-ash subgrade stabilization, and to compare its performance to control sections using conventional subgrade improvement methods. Investigators will develop laboratory tests and field monitoring procedures, instrumentation and data collection procedures during construction, and monitor performance over a 30-month period.
Task List:
  1. Development of a Laboratory Testing and Field Monitoring Program
  2. Implementation of Data Collected and Monitoring Plan
  3. Long Term Monitoring
  4. Synthesis of Results, Recommendations, and Technology Transfer
Start Date: July 21, 2003
End Date: May 21, 2006
Extension: August 31, 2007, November 1, 2007, September 30, 2008, June 30, 2009
Project Award: $114,603
TOC: Geotechnics