California Bearing Ratio of some Iraqi Dune Soils
Article Sidebar
Main Article Content
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.
Metrics
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
THIS IS AN OPEN ACCESS ARTICLE UNDER THE CC BY LICENSE http://creativecommons.org/licenses/by/4.0/
Plaudit
References
AASHTO (1986): “Methods of Sampling and Testing: Standard Method of Test for the California Bearing Ratio”, T143-81.
Al-Soud, M.S. (2000): “Stabilization of Baiji Sand Dunes by Petroleum Residues”. M.Sc. thesis, Civil Engineering Dept., University of Baghdad.
ASTM , (1983); “Annual Book of Standards; Soil and Rock, Building Stone, Peats” Vol. 4.08.
Bowles, J.,E (1981): “Engineering Properties of Soil and their Measurement”, Mc-Graw Hill Book Company, New York.
BS,(1975); “British Standard Institution: Methods of Testing Soil for Civil Engineering Purposes”, BS1377.
Buringh, P. (1960): “Soils and Soil Conditions in Iraq”. Book published in the Ministry of Agriculture, Baghdad.
Draga, M., (1986): “Final Report on Dunes and Windblown Sand”. State Organization of Roads and Bridges, Baghdad.
Head, K., H., (1980): “Manual of Soil Laboratoy Testing” Vol. 1, PETECH PRESS, London.
Holtz, R.D. and Kovacs, W.D. (1981). “An Introduction to Geotechnical Engineering”. Prentice-Hall, Inc., Englewood Cliffs, New Jersey.
Khadair, A.A. (1997): “Stabilization of Nasiriya Sand Dunes by Cement Dust”. M.Sc. Thesis in Geotechnical Eng., University of Technology, Baghdad.
Khan, I., H, (1982): “Soil studies for Highway Construction in Arid Zones”. Engineering Geology, Vol. 19, No. 1, pp. 47-62. DOI: https://doi.org/10.1016/0013-7952(82)90005-9
Lambe, T.W. and Whiteman, R.V. (1969): “Soil Mechanics”. John Wiley and Sons, Inc.
Memon, A., (1977) “California Bearing Ratio For Granular Soils” 5th Southeast Asian Conference on Soil engineering, Bangkok, Thailand, pp. 339-347.
Monika Draga (1986): “Final Report on Dunes and Windblown Sand”. State Organization of Roads and Bridges, Baghdad.
Murthy, V.N.S. (1989): “Soil Mechanics and Foundation Engineering”. SAI Kripa Technical Consultans Bangalore, Vol. 1.
الطائي، فليح حسن “وقائع التصحر في الجمهورية العراقية وطرق مكافحته”، من بحوث الندوة العربية الأولى لتثبيت الكثبان الرملية ومكافحة التصحر، مجلس البحث العلمي والمركز العربي لدراسات المناطق الجافة والأراضي القاحلة، بغداد.