the husk ash rha and strengthened with

the conventional foundation systems are not suitable for the massive structure in south-west part of bangladesh because there is an organic soil layer at a depth of 10 to 20 feet from the ground surface. the existence of organic soil layer causes excessive settlement due to its high compressibility and low shear strength. to solve this problem soil improvement is needed indispensably because it drops the construction expense and reduces the risk of further damage to the structures. soil stabilization is an important process in the field of construction. stabilization techniques are used to improve the strength of weak organic or other poor expansive soils. this research represents the investigational results acquired from tests performed on organic soil stabilized with rice husk ash rha and strengthened with randomly distributed nylon ?bers. to experience the impact of rha and nylon fiber on strength properties of organic soil standard proctor compaction unconfined compressive strength ucs unsoaked and soaked cbr tests were conducted first on the soil samples partially replaced by rha with dosage 0% 5% 10% 15% 20% and then soil plus optimum percent of rha and different content 0.3% 0.5% 0.7% 1% 1.2% of nylon fiber. the investigated results reveal that inclusion of different dosages of rha and nylon fiber in organic soil leads to increase in the optimum moisture content omc and decrease in maximum dry density mdd the experimental results also express that the suggested technique is very effectual to promote the strength properties of weak soil in words of ucs unsoaked and soaked cbr values. the outcome of this research work can be used as a guideline for soil improvement and can be used in civil engineering field.


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