Master of Science in Civil Engineering (MSCE)


Civil and Environmental Engineering

Document Type



The objective of this study is to investigate the characteristics of biopolymers and to examine their application for soil stabilization and oil production. Biopolymers, the composite of multi-living organisms, are one of the most promising materials in the field of geotechnical engineering. The application of biopolymer is more efficient than water for soil stabilization and oil production due to its higher viscosity as a fill material of pores in the soil. This thesis begins with a definition of Agar and Polyacrylamide (PAM) as the measurement of viscosity, contact angle, and surface tension. The application of microfluidic models are applied to perceive the flow of liquids in porous media for Enhanced Oil Recovery (EOR) techniques. The result of using microfluidic models is that the displacement ratio (range: 12.9 ~ 39.6%) of PAM solutions is higher than distilled water at the flow rate of 0.001ml/min. Soil-Water Characteristic Curve (SWCC) tests are conducted to interpret the property of biopolymers for soil stabilization. The results of the SWCC tests using biopolymers show that the capillary pressure with biopolymers is higher than distilled water in sandy soils. Therefore, the applications of biopolymer are more efficient than distilled water for soil stabilization.



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Committee Chair

Jung, Jongwon