The effectiveness of Cement, Lime and CKD for improving the compressive strength of Sabkha soils.
Abstract views: 13
/ 
PDF downloads: 10
Keywords:
Sabkha Soils, Compressive Strength, Stabilization, Cement, Lime, CKDAbstract
Sabkha is a coastal sediment with high salt content and are characterized by low bearing
capacities and high compressibility. It forms a large part of the geology of the city of Benghazi. It is of
variable thickness between 4 and 10 meters. The increase in demand for land use as a residential and tourism
development is rapidly expanding. This revealed the need for reliable and economical method of
improvement for such soft soils.
The paper presents a laboratory experimental study to investigate the effectiveness of three different
additives; cement, lime and cement kiln dust (CKD ) for soil treatment . The potential improvement of the
stabilized material is assessed using the mechanical strength characteristics and focus was made on the
amount of mixing material and the curing time.
The results showed a significant improvement for the soil treated with cement. The use of lime was found
ineffective, while the use of cement kiln dust can be relatively very promising especially when considering
the economic factor.
Downloads
References
R.B.C Russell. .Chemical and physical properties of Sabkha-type materials, TRRL supplementary report -79 UC, 1974.
A. Sabatan, M. Al-Saify, and A. Kazi, “Moisture retention characteristics of coastal Sabkha,” Quaternary journal of engineering geology, 1995,28, 37-4
S.N. Abduljauwad and O.S.B. Al-Amoudi, ”Geotechnical behavior of saline Sabkha soils”, Géotechnique 45: 1995, 425-445.
J. Newbery, and A.S, Subramanian, “Middle east sewerage project for coastal towns of Libya”,: Quaternary journal of engineering geology,11 ,1978, 101-112.
C.E Ellis, Arabian salt bearing soil (Sabkha) as an engineering material, TRRL report No. LR 523, 1973
O.S.B. Al-Amoudi I,M. Asi and Z.R. El-Naggar , “Stabilization of an arid, saline Sabkha soil using additives” , Quaternary journal of engineering geology, 28; 1995, 369-379
W.S. Adaska and D.H. Taubert, “Beneficial uses of cement kiln dust”, cement industries conference, Miami, Florida, 2008
M. Janz and S.E. Johansson The function of different binding agent in deep stabilization, Swedish deep stabilization research centre, Report No. 9, 2002
M.M. Hassan and O.Ravaska, “Strength and permeability characteristics of cement stabilized soft Finnish clay”, Géotechnics of soft soils, 2009, 227-233,London.
A. M. A. Nasr, “ Geotechnical Characteristics of Stabilized Sabkha Soils from the Egyptian–Libyan Coast “ , Geotech Geol Eng (2015) 33:893–911
