Natural fiber can be modified to woven geotextile which is an innovative method of growing vegetation and is designed for slope protection. Bangkok has highly abundant natural fibers and rural communities capable of converting them into handicrafts. The water hyacinth yarns were fabricated to woven geotextile called limited life geotextiles to help stabilize the slope and improved the growth of vegetation for erosion control in geotechnical application. The study was aimed to access the effectiveness of the new material for geotextile made from water hyacinth to control soil erosion in a representative slope at different plots of tests. The erosion control test was performed by using the artificial rainfall. The flow rates of water runoff and amount of soil loss were investigated. Consequently, the limited life geosynthetics made from water hyacinth LLGs combined with Ruzi grass can reduce the flow rate of runoff and amount of soil loss. This study confirms that the water hyacinth LLGs can be used for erosion control in geotechnical applications.
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