EFFECT OF CEMENT TYPE ON SHEAR BEHAVIOR OF CEMENTED CALCAREOUS SOIL

This paper explores the mechanical behavior of a calcareous soil under triaxial loading after treatment with different types of cement: Portland cement, gypsum, and calcite. To identify the specific effects of each cement type, a parametric study was conducted where density and unconfined compressive strength, among other factors, were maintained constant for each cementing agent. Samples of the cemented soil were examined under optical and electron microscopy to understand the bond mechanism created by each cement. Results from triaxial testing show that, despite having the same unconfined compressive strength and density, the effective stress paths and postyield response are significantly different, mainly because of the different volumetric response upon shearing. Samples prepared using Portland cement showed ductile yield and strong dilation afterwards; calcite and gypsum-cemented samples exhibited brittle yield, generally followed by contractive behavior. The results and the reasons for the differences in the mechanical response are discussed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Ismail, M A
  • Joer, H A
  • Sim, W H
  • RANDOLPH, M F
• Publication Date: 2002-6

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 520-529
• Serial:
  • Journal of Geotechnical and Geoenvironmental Engineering
  • Volume: 128
  • Issue Number: 6
  • Publisher: American Society of Civil Engineers
  • ISSN: 1090-0241
  • Serial URL: http://ojps.aip.org/gto

Subject/Index Terms

• TRT Terms: Calcareous soils; Calcites; Cement treated soils; Compressive strength; Geotechnical engineering; Gypsum; Portland cement; Shear properties; Soil mechanics; Soil science; Triaxial shear tests
• Subject Areas: Geotechnology; Highways; I42: Soil Mechanics;

Filing Info

• Accession Number: 00925085
• Record Type: Publication
• Files: TRIS
• Created Date: May 30 2002 12:00AM