doi:10.3850/GI059


Experimental Study of Engineering Behavior of Fibrous Peat Soil Reinforced by Cement Column


Sina Kazemiana, Arun Prasadb, Vahed Ghiasic and Bujang B. K. Huatd

Department of Civil Engineering, University of Putra Malaysia, 43400 Serdang, Selangor, Malaysia.

asina.kazemian@gmail.com
barunprasad64@yahoo.com
cv_gh10@yahoo.com
dbujang@eng.upm.edu.my

ABSTRACT

Peat soils are extremely soft and unconsolidated surficial deposits constituting the subsurface of wetland systems. Due to high compressibility and low shear strength, these soils are geotechnically problematic soils. One of the most common methods for improving these soils is cement columns. This paper presents test results of the shear strength and compressibility characteristics of fibrous peat soil and cement column reinforced peat soil. The shear strength and compressibility characteristics of the samples were obtained by a triaxial test under consolidated-undrained condition and Rowe cell respectively. The results indicated that, installing cement columns and increasing cement ratio could improve dramatically the compressibility and shear strength of peat soils.

Keywords: Peat soil; fibrous; cement column; shear strength; consolidation.

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