VARIATION OF SUCTION IN STABILISED BLACK COTTON SOIL

In this paper a study is made of the variation of soil suction with variation in water content, sand content and lime content of the soil. The tensiometer used and the procedure followed are described. The tensiometer used to measure soil suction consisted of a U shaped mercury manometer and water funnel both connected by a three way valve to a pipe submerged in a porous pot containing water. The porous pot was embedded in the soil sample to be tested. The types of soil investigated included black cotton soil, black cotton soil with 5, 10, 20 and 30 per cent fine sand and black cotton soil with 2, 4, 6 and 8 per cent lime. Moisture contents of 5, 10, 15, 20, 25 and 30 per cent were used. Results are tabulated and illustrated by graphs. The results show that content soil-suction decreases with an increase in moisture. Increases in sand or in lime content also cause soil-suction to decrease. The author concludes that the stabilisation of black cotton soil with sand and lime causes a reduction in suction and thus improves its engineering properties.

  • Availability:
  • Corporate Authors:

    Indian Roads Congress

    Jamnagar House, Shahjahan Road
    New Delhi,   India  110 011
  • Authors:
    • SHARMA, V K
    • Patel, A N
  • Publication Date: 1990-2

Language

  • English

Media Info

  • Pagination: p. 41-47
  • Serial:
    • Indian Highways
    • Volume: 18
    • Issue Number: 2
    • Publisher: Indian Roads Congress
    • ISSN: 0376-7256

Subject/Index Terms

Filing Info

  • Accession Number: 00606907
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Mar 31 1991 12:00AM