Cement kiln dust stabilized test section on I-96/I-75 in Wayne County : construction report : CS 82194 JN 37795 NB I-75 from Vernor Highway to Michigan Avenue, Detroit, Michigan.
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Cement kiln dust stabilized test section on I-96/I-75 in Wayne County : construction report : CS 82194 JN 37795 NB I-75 from Vernor Highway to Michigan Avenue, Detroit, Michigan.

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  • English

  • Details:

    • Alternative Title:
      CS82194-JN37795 CKD stabilized subgrade
    • Publication/ Report Number:
    • Resource Type:
    • Geographical Coverage:
    • OCLC Number:
      677037936
    • NTL Classification:
      NTL-HIGHWAY/ROAD TRANSPORTATION-Soils and Geology ; NTL-HIGHWAY/ROAD TRANSPORTATION-Materials ;
    • Abstract:
      In the summer of 2008 two CKD stabilization test sections were constructed on the I-75/I-96 Gateway roadway reconstruction project in Detroit near the Ambassador Bridge. Through observation and testing, CKD adequately stabilized both subgrade test sections. One test section consisted of a predominantly silty clay soil and the other had a mixture of sand over silty clay. Dynamic Cone Penetrometer (DCP) test results showed a substantial increase in subgrade soil strength through CKD stabilization. On average CKD stabilized areas showed an 885% strength gain though stabilization relative to the existing soil strength. Lime stabilized areas showed an average increase of 531%. Based on the test sections it was concluded that CKD has advantages and disadvantages in comparison to Lime stabilization. CKD stabilization did result in higher and quicker soil strength gain which could accelerate construction activities. Also, incorporation has environmental benefit since this “by-product” material has historically been disposed of in a landfill. However, CKD material has more risk in that it is less predictable in nature because it is a ‘by-product”. The material is finer which poses more dusting concerns. And there are tighter construction restrictions due to early set time. Also of concern, previous laboratory work done by others has shown mixed results in long term strength loss of CKD treated soils if it becomes saturated due to capillary rise of ground water. A long term performance monitoring program is in place for the two test sections and Lime stabilized areas to observe strength changes through time.
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