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Shear Strength Parameters of Improved Peat by Chemical Stabilizer.


Kim Huat, Bujang and Moayedi, Hussein and Kazemian, Sina (2013) Shear Strength Parameters of Improved Peat by Chemical Stabilizer. Geotechnical and Geological Engineering, 31 (4). pp. 1089-1106. ISSN 0960-3182


The present research aimed to discuss the applicability of cationic grouts in geotechnical engineering. The effects of several cationic stabilizers such as monovalent (sodium silicate), divalent (calcium oxide and calcium chloride), and trivalent (aluminum hydroxide) were investigated on shear strength improvement of tropical peat samples. The unconfined compressive strength (UCS) tests were performed after the time frame of 7, 21, and 30 days as curing time, respectively. Apart from the physicochemical characteristics of the stabilized peat, scanning electron microscopy and energy-dispersive X-ray spectroscopy tests were also carried out to study the ongoing microstructural changes. It is to be noted that the shear strength values for peat samples rose to 8, 6, 6, and 4 % of sodium silicate, calcium oxide, calcium chloride, and aluminum hydroxide, respectively. The highest observed UCS outcome is the one taken from the calcium oxide where the UCS of treated peat after 30-day curing time increased to 76 kPa. The strength changes resulted from the various cationic stabilizers can best be explained via the consideration within the mineralogical composition as well as those physicochemical changes happening in the peat.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1007/s10706-013-9635-5
Keywords: Tropical peat, Soil improvement, Chemical grouts, Microstructure analysis
Depositing User: Muizzudin Kaspol
Date Deposited: 23 May 2014 08:19
Last Modified: 18 Sep 2015 07:09
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/s10706-013-9635-5
URI: http://psasir.upm.edu.my/id/eprint/28629
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