Comparative study of the shrinkage characteristics of peat at south east Johore

Saedon, Nursyahidah (2016) Comparative study of the shrinkage characteristics of peat at south east Johore. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

This study is to review the behaviour of peat under reconstituted sample and undisturbed soil and to investigate shrinkage behaviour using modified techniques. Three different locations have been selected which are Parit Nipah, Batu Pahat and Integrated Peat Research Station (IPRS), Pontian for peat soil, while clay soil is collected from the Research Centre of Soft Soil (RECESS), UTHM. For modified techniques of measuring shrinkage, peat samples were prepared in different diameter sizes (50mm, 70mm and 100mm) and temperatures (air-dried, 60C and 105C). Undisturbed samples were compared with reconstituted sample that had been obtained by wet sieve and dry sieve procedures (particles that passing 0.300mm and 0.425mm). Reconstituted sample was also dried with two different temperatures. It is significant in comparing the shrinkage characteristics by using a modified techniques with the British standard method. In Von post classification system, Parit Nipah and Pontian peat soil had been classified as H5 and H4. The results of the index properties tests of Parit Nipah, Pontian peat soil and RECESS clay soil had been analysed. Most of the shrinkage values show that reconstituted samples that had been prepared in wet condition with particle sizes passing 0.300mm is nearly same with undisturbed samples. It is also shows that particle sizes with passing 0.300mm sieve has higher absorption rather than 0.425mm. Thus, it shows that, smaller particle sizes give higher results of volumetric/linear shrinkage and loss of water. It was found that higher temperature was not necessarily in the volume changes of the soil sample. It also can be concluded that the shrinkage of peat soil that had been prepared in wet condition is more compatible with undisturbed peat soil and natural state condition on field site. Fibre of peat sample gives huge factors of the effect to the volume changes and shrinkage measurement.

Item Type:Thesis (Masters)
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA703-711 Engineering geology. Rock mechanics. Soil mechanics.
ID Code:8818
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:02 Feb 2017 12:00
Last Modified:02 Feb 2017 12:00

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