References
[1] AASHTO (1986): “Methods of Sampling and Testing: Standard Method of Test for the California Bearing Ratio”, T143-81.
[2] Al-Soud, M.S. (2000): “Stabilization of Baiji Sand Dunes by Petroleum Residues”. M.Sc. thesis, Civil Engineering Dept., University of Baghdad.
[3] ASTM , (1983); “Annual Book of Standards; Soil and Rock, Building Stone, Peats” Vol. 4.08.
[4] Bowles, J.,E (1981): “Engineering Properties of Soil and their Measurement”, Mc-Graw Hill Book Company, New York.
[5] BS,(1975); “British Standard Institution: Methods of Testing Soil for Civil Engineering Purposes”, BS1377.
Tikrit Journal of Engineering Sciences (2010) 17(2) 1- 8
California Bearing Ratio of some Iraqi Dune Soils
Yousif J. Al-Shakarchi | Bushra S. Al-Busoda | Abbas J. Al-Taie |
Civil Eng. Dept., University of Baghdad, Iraq |
Abstract
This paper contains the results of CBR tests that performed on compacted samples of real dune sand (cohesionless sand grains) and pseudo dune sand which is a mixture of sand sized aggregate of clay and silt. The effect of compaction and soaking on the bearing values are included in this research. The results indicated that the compacted real dune sands have high strength and low sensitivity to soaking. The 5 mm penetration of CBR of this soil is higher than that of 2.5 mm. On the other hand, the loss of strength due to soaking can be quite considerable in compacted pseudo dune sands. The CBR values obtained at 2.5 mm and 5 mm penetration are approximately equal in pseudo dune sands.
Download Full-text PDF
Keywords: Dune sand, CBR, california bearing ratio, Iraqi soil.