Use of Coal Fly Ash and Other Waste Products in Soil Stabilization and Road Construction - Including Non-Destructive Testing of Roadway - Columbia

Beneficial use of coal fly ash has an overall economic and environmental benefit. Fossil fuel power plans produce large quantity of coal fly ash each year. These fly ashes mostly disposed of in landfills and ponds. Nationwide, only approximately 40% of coal fly ashes are beneficially used. The use of fly ash in road subgrade applications can provide better properties and performance, and is superior to it being otherwise disposed and becoming a possible environmental liability. Meanwhile, the Missouri Department of Transportation (MoDOT) is also looking for non-destructive testing methods to evaluate the effectiveness of these materials in strengthening the road subgrade which can enhances inspection of other areas of roadwork. In the proposed research, we will firstly identify waste products, including coal fly ash and lime kiln dust, in soil stabilization to reduce the cost while enhancing road construction. Secondly, we will develop innovative non-destructive testing technologies to evaluate the physical and engineering properties of the stabilized subgrade, subbase and base materials and provide a guideline of use of fly ash and other waste products in Missouri.

• Record URL:
  http://utc.mst.edu/research/R271.html

Language

• English

Project

• Status: Completed
• Funding: $108353.00
• Contract Numbers:

  DTRT06-G-0014

  00032726, 00033461

• Sponsor Organizations:

  Missouri University of Science and Technology, Rolla

  328 Butler-Carlton Hall
  1401 N. Pine Street
  Rolla, MO  United States  65401

  University of Missouri, Columbia

  Department of Civil Engineering
  Columbia, MO  United States  65211

  Missouri Department of Transportation

  1617 Missouri Boulevard
  P.O. Box 270
  Jefferson City, MO  United States  65102
• Principal Investigators:

  Rosenblad, Brent

• Start Date: 20101130
• Expected Completion Date: 0
• Actual Completion Date: 20111231
• Source Data: RiP Project 28058

Subject/Index Terms

• TRT Terms: Fly ash; Fossil fuels; Nondestructive tests; Pavement performance; Road construction; Soil stabilization; Subbase (Pavements); Subgrade (Pavements)
• Subject Areas: Administration and Management; Geotechnology; Highways; Policy; I30: Materials;

Filing Info

• Accession Number: 01484900
• Record Type: Research project
• Source Agency: Center for Infrastructure Engineering Studies
• Contract Numbers: DTRT06-G-0014, 00032726, 00033461
• Files: UTC, RIP
• Created Date: Jun 26 2013 1:00AM