Effect on compressibility of stabilized peat using fiber reinforcement (sawdust) techniques

Intan Nurfauzirah Shafiqah, Binti Hamzani. (2017) Effect on compressibility of stabilized peat using fiber reinforcement (sawdust) techniques. [Final Year Project Report] (Unpublished)

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Abstract

Peat is classified as an organic soil, with low shear strength (Cu=10 kPa) and high compressibility due to its behaviour when subjected to the applied load. Peat easily undergo differential and total settlement, which makes it hard for construction industry. Ground improvement techniques are one of the suitable solution to improve the stability of peat and provide strong subgrade platform. This research focuses on investigating the effects of sawdust, an industrial waste material used in reinforced peat with 5% cement as a binder. The size of sawdust used is in the range of 0.425 mm to 1.18 mm. The peat used is sapric peat which is categorized as highly decomposed peat. In this study, peat were treated with different percentages of sawdust of 10%, 15% and 20% by weight. The reinforced peat was compacted at the optimum moisture content for each design mix. The samples were mixed at optimum moisture content and were air cured for 0 and 28 days for the shear strength development and improvement of the compressibility of the treated peat over time. Based on the present study, it shows that peat mixed with 5% cement with 15% sawdust has the highest maximum shear stress of 228.58 kPa. As for the compressibility, peat, 5% cement with and 10% sawdust has the lowest void ratio hence the lowest compressibility. The use of sawdust is expected to increase the shear strength of the soil over time. The findings of this research can provide a better understanding on the stabilization of peat in terms of the compressibility as well as the shear strength of the treated peat.

Item Type: Final Year Project Report
Additional Information: Project Report (B.Sc.) -- Universiti Malaysia Sarawak, 2017.
Uncontrolled Keywords: organic soil, fiber reinforcement (sawdust), reinforced peat, subgrade platform, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, undergraduate, , research, Universiti Malaysia Sarawak.
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Academic Faculties, Institutes and Centres > Faculty of Engineering
Depositing User: Gani
Date Deposited: 08 Jul 2019 04:15
Last Modified: 08 Jul 2019 04:15
URI: http://ir.unimas.my/id/eprint/25646

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