STUDY ON STRENGTH BEHAVIOR OF CEMENT STABILIZED SLUDGE REINFORCED WITH WASTE CORNSILK FIBER
Keywords:Soil Stabilization, Fiber Reinforced Soil, Fiber-Cement Stabilized Soil, CornsilkFiber
This study was carried out to investigate the strength behavior of cemented sludge reinforced with cornsilk fiber considered as aby-product from corn. Hence, a series of unconfined compression test wasconducted at different levels of water, cement, and fiber content. Water contents considered in this study were 40, 50, and 60%; cement content used for sludge stabilization was changed from 5 to 40 kg/m3; meanwhile, fiber content was used at different levels from 5 to 30 kg/m3. In addition, the relationship between failure strength and theamount of water, cement, and fiber was investigated in the present work. The experiment results showed that there was an improvement in failure strength, failure strain, ductility, and stiffness with fiber inclusion. Besides, stiffness improvement was based on the amount of cement used. The relationship between failure strength with and without fiber inclusion and water, fiber, and cement content was described as following power or exponential function with astrong correlation coefficient. It was concluded that there was a good performance of cornsilk fiber in reinforcing cementedsludge. Furthermore, the utilization of waste material to modify soft soil or sludge will bring about many benefits not only for geotechnical engineering but also for theenvironment and social economy.