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Peat Soil Lab Report

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ABSTRACT- Peat soil is one of the problematic soil that need to be studied in order to seek solution to improve its strength. This can be done through stabilization techniques.In this study, combination of chemical stabilization and fiber reinforcement are chosen. Chemical stabilizer used is Ordinary Portland cement (OPC) and the fiber is taken from car waste tyre (Polyester). Physical properties test is conducted to determine the physical properties of the peat. According to von Post classification system, the type of the peat used is classified under H7 which is pseudo-fibrous peat or hemic peat. This present study focusing on study to determine the strength development before and after fiber inclusion on the peat for stabilized purposes. The mechanical test such as compaction test, unconfined compressive strength (UCS) test and California bearing ratio (CBR) test were conducted on the peat with or without inclusion of fiber ( 0.25%, 0.5%, 0.75%) and 5% cement insertion. Based on compaction test results, the highest maximum dry density is 0.617 Mg/m3 for peat with fiber inclusion 0.5% with the optimum moisture content is 69.19%. The sample cured for 7 days and 28 days before the UCS test were conducted. Based on the observation, …show more content…

The amount of fiber is varies from 0.25% to 0.75% of the dry weight of the peats. From Figure 4.4 it shows, maximum dry density of peat-cement mixture is 0.597 Mg/m3 with optimum moisture content 76.24%. 0.25% addition of fiber into the peat-cement mixture shows the highest maximum dry density which is 0.597 Mg/m3 with optimum moisture content 76%. This is followed by inclusion of 0.5% fiber and 0.75% fiber into the peat-cement mixture. The maximum dry density is 0.583 Mg/m3 and 0.582 Mg/m3 with optimum moisture content of the mixture are 78% and

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