Evaluation of the Microstructural Characteristics of Soil Treated with Cement Kiln Dust (CKD) and Used as Subgrade at US 24

In 2010 construction began on a new section of US 24 northwest of Fort Wayne, IN. Reportedly the subgrade was treated with 5% of a cement kiln dust (CKD) at the time of construction to help control problems related to excess moisture and facilitate construction in the silty-clay soils. In the Spring of 2011 heaving was noted in the soils and asphalt pavement in several places. INDOT has concerns that the FWD results suggested a potential problem with pavement support in several places along the PCCP section of US 24. This project will investigate to what degree, if any, the subgrade treatment may have contributed to the reduction in subgrade support seen in the FWD results.

Language

• English

Project

• Status: Completed
• Funding: $32944.00
• Contract Numbers:

  SPR-3751

• Sponsor Organizations:

  Purdue University/Indiana Department of Transportation JHRP

  Purdue University
  1284 Civil Engineering Building, Room 4154
  West Lafayette, IN  United States  47907-1284
• Principal Investigators:

  Whiting, Nancy

• Start Date: 20130101
• Expected Completion Date: 0
• Actual Completion Date: 20150331
• Source Data: RiP Project 33575

Subject/Index Terms

• TRT Terms: Cement; Evaluation and assessment; Kiln dust; Microstructure; Subgrade (Pavements)
• Uncontrolled Terms: Soil treatment
• Subject Areas: Highways; Pavements; I30: Materials;

Filing Info

• Accession Number: 01572504
• Record Type: Research project
• Source Agency: Indiana Department of Transportation
• Contract Numbers: SPR-3751
• Files: RIP, STATEDOT
• Created Date: Aug 8 2015 1:01AM