H. A. H. Ismaiel, M. M. Askalany and M. M. Badry, “Geotechnical Propertied and Classification of Both Non-Expansive and Expansive Soils Exposed along the New Upper Egypt-Red Sea Road, Eastern Desert, Egypt,” Scientific Journal of Banha University, No. 6, 2011, pp. 1-18. - References

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H. A. H. Ismaiel, M. M. Askalany and M. M. Badry, “Geotechnical Propertied and Classification of Both Non-Expansive and Expansive Soils Exposed along the New Upper Egypt-Red Sea Road, Eastern Desert, Egypt,” Scientific Journal of Banha University, No. 6, 2011, pp. 1-18.

has been cited by the following article:

TITLE: Cement Kiln Dust Chemical Stabilization of Expansive Soil Exposed at El-Kawther Quarter, Sohag Region, Egypt

AUTHORS: Hesham A. H. Ismaiel

KEYWORDS: Ultrasonic Velocities; Free Swelling; Heave; Unconfined Compressive Strength and Microstructural Changes

JOURNAL NAME: International Journal of Geosciences, Vol.4 No.10, December 27, 2013

ABSTRACT: This work dealt with a chemical stabilization of an expansive high plastic soil of Pliocene deposits exposed at El-Kawther quarter using cement kiln dust (CKD) and cement kiln dust with lime (L) to reduce their swelling and improve their geotechnical properties. Several specimens of the studied expansive soil were collected from El-Kawther quarter. Chemical analysis of the used cement kiln dust and the lime was conducted. Microstructural changes were examined using scanning electron microscope (SEM) before and after chemical treatment of the studied soil. Geotechnical properties including plasticity, compaction parameters, unconfined compressive strength (qu), ultrasonic velocities and free swelling of the studied soil were measured before and after the treatment. An optimum content of the cement kiln dust was 16% (CKD). The optimum content of the cement kiln dust with the lime was 14% (CKD) with 3% (L) according to pH-test. The results showed that the addition of cement kiln dust and cement kiln dust with lime led to a decrease in maximum dry density and an increase in optimum water content. Unconfined compressive strength values were increased using cement kiln dust and cement kiln dust with lime at 7 days curing time. Ultrasonic longitudinal (Vp) and shear (Vs) velocities values were also increased by addition of the cement kiln dust and the cement kiln dust with lime at 7 days curing time. Increment of the curing time from 7 to 28 days led to an increase in both unconfined compressive strength and ultrasonic velocities values. Free swelling percent of the studied soil was reduced from 80.0% to 0.0% after the treatment.