COMPARISON OF EFFECTIVENESS AND ECONOMIC FEASIBILITY OF BITUMEN, LIME AND CEMENT AS STABILISING AGENTS FOR REDUCTION OF SWELL POTENTIAL OF A CLAYEY SOIL

The excessive heave, settlement, low shear strength, and internal erosion of some soils may damage engineering structures in the following cases: (1) footings founded on expansive or collapsible soils; (2) roads and runways constructed on an expansive or collapsible subgrade; and (3) earth dams constructed from erodible soil. To avoid such damage, it may help to stabilise the natural soil using appropriate agents. 'Soil stabilisation' is any combination of physical, chemical, and biological methods to improve certain properties of natural soils so that an intended purpose can be served. Bitumen, lime, and cement are possible stabilising materials. This paper presents research to compare the effectiveness and economic feasibility of bitumen, lime, and cement as stabilising agents for reducing the swell potential of a clayey soil. A laboratory testing programme was conducted on a swelling soil from Northern Jordan. Mixtures of soil with these materials were prepared at concentrations of 3%, 6%, and 9% by dry weight of soil. The paper describes the properties of the soils used, sample preparation and testing, the swelling test, and the results of the tests. For soils with a high fines content, bitumen reduced swell potential more than cement and less than lime, but was the least economical stabilising material.

  • Availability:
  • Corporate Authors:

    Indian Roads Congress

    Jamnagar House, Shahjahan Road
    New Delhi,   India  110 011
  • Authors:
    • AL-HOMOUD, A S
    • KEHDAYWI, T
    • AL-AJLOUNI, A M
  • Publication Date: 1999-1

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 51-8
  • Serial:
    • Indian Highways
    • Volume: 27
    • Issue Number: 1
    • Publisher: Indian Roads Congress
    • ISSN: 0376-7256

Subject/Index Terms

Filing Info

  • Accession Number: 00769915
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Oct 7 1999 12:00AM