A study on the shear strength behaviour of lateritic soil-deoiled spent bleaching earth (DSBE) mixtures

Muhammad Azlan Suhaili (2022) A study on the shear strength behaviour of lateritic soil-deoiled spent bleaching earth (DSBE) mixtures. Universiti Malaysia Sabah. (Unpublished)

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De-oiled Spent Bleaching Earth (DSBE) is the industrial waste originally from the edible oil refining process. In Malaysia, this palm oil waste literally dumps directly to the landfill that may cause severe pollutants to the environment. Despite the fact that DSBE is disposed of in landfills, which might cause environmental damage, it is recovered for use in the production of sustainable products. Lateritic soil, also known as problematic soil, is one type of soil that must be considered. This scenario, if not properly monitored, could cause significant damage to infrastructure and, consequently, have an impact on society. This study aims to propose DSBE as a soil stabilization material which also as an alternative to improve the strength behaviour of the lateritic soil. The DSBE content applied in this study are 25%, 50%, 75%, and 100% were mixed with the lateritic soil, in order to investigate whether or not the utilization of the material improved the engineering properties of the lateritic soil itself. To achieve the objectives of this study, the characteristics and index properties of lateritic soil-DSBE are reviewed. Several tests and experiments were conducted which are the sieve analysis, specific gravity, Atterberg limit, x-ray Diffraction (XRD) test, standard proctor compaction test and unconfined compression test. The results indicated that DSBE as stabilizer is able to significantly increase the unconfined compression strength and shear strength of lateritic soil. Thus, it was obtained that a soil sample of 75% lateritic soil, 25% DSBE has the highest compressive strength with lowest moisture content which are 92.65 kPa and 39.90%, respectively. Overall, this research also emphasizes the aspect of sustainability in the construction industry especially in Malaysia for the sake of the country's future economy and ecological system.

Item Type: Academic Exercise
Keyword: De-oiled spent bleaching earth , DSBE , Lateritic soil , Soil stabilization
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA1-2040 Engineering (General). Civil engineering (General)
Department: FACULTY > Faculty of Engineering
Depositing User: DG MASNIAH AHMAD -
Date Deposited: 23 Mar 2023 10:15
Last Modified: 23 Mar 2023 10:15
URI: https://eprints.ums.edu.my/id/eprint/35236

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