Characterization and Impact of Peat Fires on Stabilization of Tropical Lowland Peats in Banting, Selangor, Malaysia

Nerwan Shah, Azlan Shah and Mustapha, Khairul Azlan and Hashim, Roslan (2020) Characterization and Impact of Peat Fires on Stabilization of Tropical Lowland Peats in Banting, Selangor, Malaysia. Sains Malaysiana, 49 (3). pp. 471-481. ISSN 0126-6039, DOI

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Peat soil is a representative material of soil and well known as rich in organic matters, high compressibility, high porosity and low shear strength. During dry seasons, peat lands will lose lots of water and potentially turn into a tinderbox bringing in fires. When peat forest fires happen, it prompts degradation of humic-rich organic matter eventually reduce the stability of peat soil. The impacts of peat fire on peat soil from degraded area in Banting, Selangor, Peninsular Malaysia, were investigated through the field identification, physical and engineering properties through burnt peat site. The Unconfined Compressive Strength (UCS) result shows the burnt peat soil gained in strength that strongly related to the binder and filler dosage, moisture content of peat and curing time. The value of UCS strength increased with the gain of moisture content of peat samples but the strength tends to decrease when the moisture content exceeds certain point. The organic material changed its physical and chemical structure resulting from the fire event, thus, the capability of the soil to hold water particles is reducing and yielded higher UCS strength of cement-peat-stabilization. The most important geotechnical aspects of peat that have effect on stabilization process are natural water content, humification grade, ash content, and pH value. The results also suggested that lateral variation within the peat basin indirectly affects the strength of cement-peat-stabilization. The strength of burnt peat can be considerably improved by stabilization and support the concept of Air Curing Technique. © 2020 Penerbit Universiti Kebangsaan Malaysia. All rights reserved.

Item Type: Article
Funders: IPPP grant BK064-2015 and grant RF022B-2018 under Pusat Pengurusan Geran Penyelidikan (PPGP), University Malaya (Kuala Lumpur, Malaysia)
Uncontrolled Keywords: Air Curing Technique; Cement-peat-stabilization; Lateral variation; Peat fires, Unconfined Compressive Strength
Subjects: Q Science > QE Geology
T Technology > TC Hydraulic engineering. Ocean engineering
Divisions: Faculty of Engineering
Faculty of Science > Department of Geology
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 24 Jun 2020 03:50
Last Modified: 24 Jun 2020 03:50

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