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Physico-chemical characterization of peat at different decomposition levels

Abd Rahman, Junita and Chan, Chee Ming (2015) Physico-chemical characterization of peat at different decomposition levels. Electronic Journal of Geotechnical Engineering, 20 (9). pp. 4011-4019. ISSN 1089-3032

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Abstract

Pontian district at Johor, Malaysia is covered more than 60 % with peat. The large area of peat makes this district the least preferred place for residential. The challenges of infrastructure build-up have been an issue for decades. Understanding the nature of peat will be an advantage for civil engineer before any construction project can be done. Peat is derived from the accumulation of dead plant. The properties of peat which are easily compressible, affected to ambient and climate change, make the peat treatment more challenging. In characterizing the peat, the physico-chemical testing was done referred to BS1377 method either with or without modifications and ASTM D1997-91. The ASTM D1997-91 is designed specifically for peat classification. At different decomposition level of peat, the same method of physico-chemical testing was used. The fiber content test is the most crucial test that indicates the decomposition level of peat samples. The secondary tests in peat characterization are particle size distribution and moisture content. The pH, specific gravity, loss on ignition (LOI) and Atterberg limit tests are the least affective tests in characterizing peat according to the decomposition level but commonly used in peat study as it can confirm that the soil sample is peat.

Item Type: Article
Uncontrolled Keywords: peat; physical test; chemical test; properties; characterization; BS1377; ASTM
Subjects: T Technology > T Technology (General)
Divisions: Faculty of Engineering Technology > Department of Civil Engineering Technology
Depositing User: Normajihan Abd. Rahman
Date Deposited: 13 Aug 2018 03:39
Last Modified: 13 Aug 2018 03:39
URI: http://eprints.uthm.edu.my/id/eprint/8150
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