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An investigation of soil volume changes at four dimensional points of peat soil sample in Parit Nipah and Pontian

Zainorabidin, Adnan and Saedon, Nursyahidah and Mohd Seth, Nurul Farhana (2014) An investigation of soil volume changes at four dimensional points of peat soil sample in Parit Nipah and Pontian. In: International Integrated Engineering Summit (IIES 2014), 1-4 December 2014, Universiti Tun Hussein Onn Malaysia, Johor.

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Abstract

Peat soils occur in many countries and formed naturally through the decomposition of plant and animal matter. These soils are known as a very problematic soft soil due to its low bearing capacity and high compressibility. These two main factors may be based on the characteristics of the soil itself. This study is focused on its physical properties and shrinkage measurement. It is also to investigate the shrinkage measurement that was obtained from the diameter of the samples at four dimensional points and bar linear shrinkage method for both location peat samples. There are various method that can be used in order to obtain a full description of the shrinkage behaviour of peat. The sample was taken from two different locations which are Parit Nipah and Pontian. The linear shrinkage method is used to determine the soil shrinkage from linear measurements on a bar mould with disturbed soil that passing 0.425mm sieve. However, this method was modified by using undisturbed samples to compare the result with bar linear shrinkage method and the measurement was obtained by the reduction of its diameter at four points of the sample. Linear shrinkage values obtained from Parit Nipah and Pontian by following British Standard method are 34.77% and 33.09% respectively while modified linear method gives the value of 35.25% for Parit Nipah and 32.85% for Pontian. Modified method shows that peat soil from both locations shrinks in irregular shape due to Point C of Parit Nipah and Pontian peat sample has the smallest diameter compared to other points within 24 hours oven-dried. It also shows that Parit Nipah peat soil has a higher percentage of linear shrinkage for both methods instead of Pontian peat soil. The linear shrinkage values that obtained from bar linear shrinkage and modified linear shrinkage gives smaller different values which are nearly same for both methods

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: peat soil; undisturbed sample; linear shrinkage; 4 dimensional points
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA703-711 Engineering geology. Rock mechanics. Soil mechanics.
Divisions: Faculty of Civil and Environmental Engineering > Department of Infrastructure and Geomatic Engineering
Depositing User: Mrs. Nurhayati Ali
Date Deposited: 08 Jun 2015 06:50
Last Modified: 08 Jun 2015 06:50
URI: http://eprints.uthm.edu.my/id/eprint/6587
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