A study on unconfined of a chemically stabilized soil with cement and timber industrial ash (TIA)

Ling , Felix Ngee Leh and Robani, Rafidah (2007) A study on unconfined of a chemically stabilized soil with cement and timber industrial ash (TIA). In: Persidangan Kebangsaan AWAM '07, 29-31 Mei 2007, Langkawi, Kedah.

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Abstract

properties of soft soil. A variety of stabilizers have been used for stabilizing soft soils. Portland cement, lime, Pulverized Fuel Ash (PFA), and Ground Granulated Blast Furnace Slag (GGBS) have been widely accepted for stabilizing soft soils. Such pozzolanic materials have been found to improve the physiochemical and engineering behavior of treated soils. However, there are several obstacles to the commercial utilization of the ashes despite the favorable laboratory findings on the performance of it. One of it is the high cost of importing the fly ashes as PFA and GGBS are not common in Malaysia. The purpose of this study is to experiment with another recently identified pozzolanic material in Malaysia, which is known as Timber Industrial Ash (TIA). TIA was derived mainly from the controlled burning of rubber wood bark from timber industries in Malaysia, which is available easily over the country. Hence, the main objective of this study is to assess utilization of TIA and cement in combination for improving the strength of soft soils. The combination of TIA and cement are referred as blended cement in this study. Soil samples utilized in this study are disturbed samples taken from The Research Centre for Soft Soils (RECESS) with 1.8m ± 0.1m in depth under the ground surface. The samples were compacted manually in steel mould to form unit weight of 14.5kN/m3± O.lkN/m3. Ten percents of blended cement were utilized (by dry unit weight of soil) with the range of TIA replacement percentages are 10%, 13% and 15% respectively. The samples were soaked in water for simulating the worst condition. The laboratory results showed that the replacement of TIA in blended cement had improved its strength

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:soil stabilization; timber industrial ash (TIA); blended cement
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA1-163 Engineering (General). Civil engineering (General)
Divisions:Faculty of Civil and Environmental Engineering > Department of Civil Engineering
ID Code:1858
Deposited By:Normajihan Abd. Rahman
Deposited On:04 Oct 2011 12:26
Last Modified:04 Oct 2011 12:30

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