Engineering Properties and Moisture Susceptibility of Silty Clay Stabilized with Lime, Class C Fly Ash, and Cement Kiln Dust

A laboratory study was undertaken to evaluate the effectiveness of different percentages of hydrated lime, class C fly ash (CFA), and cement kiln dust (CKD) as soil stabilizers. Cylindrical specimens were compacted and cured for 28 days in a humidity room having a constant temperature and controlled humidity. At the end of the curing period, specimens were tested for resilient modulus (M and subscript r), modulus of elasticity (M and subscript E), and moisture susceptibility using tube suction test. The study revealed that the values of M and subscript r, M and subscript E, and unconfined compressive strength (UCS) for the stabilized specimens increased with the increase in the amount of the stabilizing agent. It was also found that the increase in M and subscript r, M and subscript E, and UCS values varies with the type of stabilizing agents. The CKD-stabilized specimens exhibited a higher increase in M and subscript r, M and subscript E, and UCS values than the corresponding values of lime- and CFA-stabilized specimens. Additionally, CKD-stabilized specimens exhibited the least moisture susceptibility in terms of lowest dielectric values as compared to lime- and CFA-stabilized specimens.

• Availability:
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• Authors:
  • Solanki, Pranshoo
  • Khoury, Naji
  • Zaman, Musharraf M
• Publication Date: 2009-12

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 749-757
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 21
  • Issue Number: 12
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Calcium oxide; Durability; Fly ash; Kiln dust; Laboratory studies; Properties of materials; Silty clays; Soil stabilization; Soil tests; Soils by moisture content or potential
• Uncontrolled Terms: Soil stabilizers
• Subject Areas: Geotechnology; Highways; Materials; I36: Aggregates; I42: Soil Mechanics;

Filing Info

• Accession Number: 01149289
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 29 2010 7:13AM