Stabilization of Tropical Peat Soil from Sarawak with Different Stabilizing Agents
This paper describes a study on tropical peat soil stabilization to improve its physical properties by using different stabilizing agents. The samples were collected from six different locations of Sarawak, Malaysia, to evaluate their physical or index properties. Out of them, sample having the...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | en |
| Published: |
Springer Nature Switzerland
2011
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/29738/1/Kolay.pdf http://ir.unimas.my/id/eprint/29738/ https://link.springer.com/article/10.1007/s10706-011-9441-x |
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| Summary: | This paper describes a study on tropical
peat soil stabilization to improve its physical properties by using different stabilizing agents. The
samples were collected from six different locations
of Sarawak, Malaysia, to evaluate their physical or
index properties. Out of them, sample having the
highest percentage of organic content has been
selected for stabilization purposes. In this study,
ordinary portland cement (OPC), quick lime (QL),
and class F fly ash (FA) were used as stabilizer. The
amount of OPC, QL, and FA added to the peat soil
sample, as percentage of dry soil mass, were in the
range of 5–20%; 5–20% and 2–8%, respectively for
the curing periods of 7, 14, and 28 days. The
Unconfined Compressive Strength (UCS) test was
carried out on treated/stabilized samples with the
above mentioned percentages of the stabilizer and the
result shows that the UCS value increases significantly with the increase of all stabilizing agent used
and also with curing periods. However, in case of FA
and QL, the UCS value increases up to 15 and 6%,
respectively with a curing period of 28 days but decreases rather steady beyond this percentage. Some
UCS tests have been conducted with a mixture of FA
and QL to study the combined effect of the stabilizer.
In addition, Scanning Electron Microscope (SEM)
study was carried out on original peat soil and FA, as
well as some treated samples in order to study their
microstructures. |
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