Effect of using cement admixed with rubber chips on the undrained shear strength of soft soil

Mokhtar, A. Mardiha and Chan, Chee-Ming (2007) Effect of using cement admixed with rubber chips on the undrained shear strength of soft soil. In: National Seminar on Civil Engineering Research (SEPKA 2007), 11-12 December 2007, Universiti Teknologi Malaysia, Skudai.

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Abstract

Soft soil is one of the problematic soils with closely related to the ultimate failure behaviour which occurs as highly compressible, poor resistance to deformation, low permeability and also poor shear strength. UTHM soft soil sits on a very soft soil deposit which falls in the category as described above. To construct on these soft grounds, ground improvement as pre-treatment is necessary. For this purpose, an innovative soft soil stabilization method using cement admixed with rubber chips was developed. This paper reports on the effect of cement admixed with rubber chips on the undrained shear strength of the stabilized soft soil. Disturbed clay samples were collected from the Research Centre for Soft Soils (RECESS) based in UTHM. A series of laboratory tests were conducted to determine the index properties of the original soft soil. The soft soil was stabilized with 5% mixture of cement and various quantities of rubber chips, then left to cure for 7 and 14 days. Upon curing, direct shear tests were carried out on the specimens to measure the undrained shear strength. From the experimental results, it is shown that cement admixed with rubber chips could significantly improve the undrained shear strength of soft soil.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:undrained shear strength; clay; soil stabilization; rubber chips; cement
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA703-711 Engineering geology. Rock mechanics. Soil mechanics.
ID Code:4150
Deposited By:Normajihan Abd. Rahman
Deposited On:03 Sep 2013 10:39
Last Modified:21 Jan 2015 15:41

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