Alistair Dylan George (2022) Experimental investigation on the undrained shear strength characteristic of peat stabilized with eco process pozzolan. Universiti Malaysia Sabah. (Unpublished)
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Abstract
Peat bogs are an important ecosystem that contributes significantly to global climate stability. Peat from Malaysia is tropical peat. This peat has distinct features that distinguish it from other types of peat. This soil is normally dark reddish-brown to black and made up of partially decomposed leaves, branches, twigs, and tree trunks with a low mineral content in its natural state. These are created by the buildup of disintegrating plant fragments that have been preserved by insufficient aeration and high water content. Peat soils are found in many regions and are defined in a variety of ways, both qualitatively and quantitatively. Due to its high water content, high compressibility, and low shear strength, peat is one of the challenging foundation soils of poor quality. Peat is an inadequate soil for sustaining foundations in its natural condition due to its high moisture content (>100%), high compressibility (0.9-1.5), and poor shear strength (5-20 kPa). Peat soil is a type of soil that is used in agriculture and is ideal for growing vegetables and fruits. Its characteristics have changed as a result of its carbon components and significant vacuum spaces, and it cannot carry enormous loads. The objective of this study is to determine the index properties of Klias, Beaufort peat soil, to determine the effect of EPP mixture in peat soil, and to access the behavior of undrained shear strength of stabilized peat with EPP. In this study, the index qualities of peat soil will be investigated using the BS 1377-8:1990 standard. Ph, specific gravity, organic content, moisture content, liquid limit, and fiber content are the index qualities. A chemical stabilizer of Eco pozzolan has been used to mix in a sample of peat soil. The method has been accomplished by mixing 10%, 20%, and 30% and 40% of EPP respectively. To determine which amount of EPP was the most successful in stabilizing peat soil, a comparison of vaa ried mixture of EPP percent will be made. One load will be used in the triaxial compression test for consolidated undrained which was 50kPa. The most important discovery was that combining peat soil with a higher concentration of EPP than cement stabilized the soil sample, resulting in minimal settlement over time. As a result, this research backs up the hypothesis that adding EPP to peat soil with the use of a binder or cement can improve the qualities of soft peat soil while also sustaining settlement over time.
| Item Type: | Academic Exercise |
|---|---|
| Keyword: | Peat soil , Eco process pozzolan , Construction industry |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA1-2040 Engineering (General). Civil engineering (General) > TA703-712 Engineering geology. Rock mechanics. Soil mechanics. Underground construction |
| Department: | FACULTY > Faculty of Engineering |
| Depositing User: | DG MASNIAH AHMAD - |
| Date Deposited: | 15 Mar 2023 10:44 |
| Last Modified: | 15 Mar 2023 10:44 |
| URI: | https://eprints.ums.edu.my/id/eprint/35217 |
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