Particle size and preloading pressure Relationship on the consolidation properties of peat soil
This study was done to establish the consolidation properties of reconstituted peat with different soil particle sizes and preloading pressures. The determination of soil properties is very important before started any construction work on soil, especially when it involves with peaty soil. Peat i...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2021
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/6450/1/24p%20NURUL%20NADIA%20JOHARI.pdf http://eprints.uthm.edu.my/6450/2/NURUL%20NADIA%20JOHARI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/6450/3/NURUL%20NADIA%20JOHARI%20WATERMARK.pdf http://eprints.uthm.edu.my/6450/ |
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| Summary: | This study was done to establish the consolidation properties of reconstituted peat with
different soil particle sizes and preloading pressures. The determination of soil
properties is very important before started any construction work on soil, especially
when it involves with peaty soil. Peat is generally known as problematic soil due to high
organic matter and have experienced high compressibility (compression index in the
range of 0.9 - 1.5), high moisture content (>100%), low soil bearing capacity (5 – 20
kPa) and high void ratio (5 - 15). Thus, several studies have to be done to gain some
information on the properties of peat soil since it has special characteristics. Hence,
reconstituted samples of selected particles size of peat with different preloading
pressures has been used in determining the relationship between soil properties and soil
compressibility. The findings were based on experimental investigation, which involved
in determining the basic soil properties of peat and the consolidation properties using
oedometer tests. The Parit Nipah Darat peat has a liquid limit of 322% with a natural
moisture content of 640%. The fiber content and organic content were 61.4% and 83%
where has been classified as hemic peat. Based on these findings, the compression
index, Cc and swelling index, Cs of Parit Nipah Darat peat for reconstituted sample with
preloading pressure of 25kPa, 50kPa and 100kPa were in range of 1.67 to 2.44 and 0.15
to 0.4. However, the preloading pressure applied during reconstitution process does not
affect the maximum past pressure of the soil sample and based on the e-log graph |
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