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Comparison between Effect of Lime and Rice Husk Ash on California Bearing Ratio on Soil in Changkat Chermin

Md Yunus, Yusra Mazliza (2008) Comparison between Effect of Lime and Rice Husk Ash on California Bearing Ratio on Soil in Changkat Chermin. Universiti Teknologi Petronas. (Unpublished)

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Abstract

Subgrade that contained substantial amount of clay minerals has low strength and cannot be guaranteed under load, especially in presence of water. Nonnally the soil would be removed and replaced by granular material or adding stabilizer to increase the CBR value. Instead of replacing the soil with granular material, soil stabilization can be adapted. The process of soil stabilization can be done by mixing soil and an additive with the existence of water. Cement and lime were common additives being used. However, this study was conducted to compare the effect of Rice Husk Ash (RHA) and Lime on California Bearing Ratio (CBR) of soil in Changkat Cermin. Rice Husk Ash is a good pozzolanic material from by product of paddy. 12% to 42% of RHA and 2% to 6% of lime had been used in order to achieve the objective of this research. Compaction test was carried out in order to determine the value maximum dry density (MDD) and optimum moisture content (OMC) which be used for conducting CBR test. CBR test had been conducted for unsoaked, soaked and 24 hour curing. For soaked condition, swell pressure value were recorded to compare the effect of RHA and lime on swell improvement. There was an improvement in CBR value with increase in RHA with peak values between 18-42% RHA contents. Meanwhile for lime, the CBR increase with maximum value between 2.5 to 4% of lime. The minimum swelling reading was at 35% of RHA and 2.5% of Lime. Soil Stabilization by using RHA is not cost effective since RHA more costly than lime. However, RHA can be used as alternative additive for soil stabilization since it can increase the CBR value of the soil.

Item Type: Final Year Project
Academic Subject : Academic Department - Civil Engineering - Water and environment - Water
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Engineering > Civil
Depositing User: Users 2053 not found.
Date Deposited: 30 Sep 2013 16:55
Last Modified: 25 Jan 2017 09:45
URI: http://utpedia.utp.edu.my/id/eprint/7843

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