Experimental and Theoretical Study on the Flexural Enhancement of Rice Sack Waste FRP-strengthened RC Beams
DOI:
https://doi.org/10.63746/njtd.v22i4.3131Keywords:
Composite, Disaster risk reduction, Flexural enhancement, FRP, Reinforced Concrete Beams, Rice Sack WasteAbstract
Reinforced concrete beams undergo a deterioration process throughout their service life due to various factors, such as design and calculation errors, the use of substandard materials, improper installation practices, overloading beyond the permissible limits, and long-term issues like creep or shrinkage cracking in the concrete. Fibre-reinforced plastic (FRP) is one of the options frequently used to address this issue. However, this material is considered not environmentally friendly due to the exploration of raw materials and production processes that pollute the environment. On the other hand, plastic waste, such as rice sack waste, is steadily increasing, particularly as Indonesia is one of the largest rice producers. Therefore, to address both issues, rice sack waste is used as a fibre phase (reinforcement) to create an FRP composite, which will be used as flexural enhancement for reinforced concrete beams with dimensions of 150 x 150 x 500 mm. The FRP composites will be varied based on the number of layers used, ranging from one to three layers. This study includes a theoretical approach based on ACI 440.2R-17 to determine the flexural capacity of the concrete beams reinforced with FRP made from rice sack waste. Additionally, experimental activities are conducted in the form of flexural testing on specimens to determine their flexural capacity. The results from the theoretical and experimental approaches are compared to assess whether ACI 440.2R-17 can approximate the capacity values obtained experimentally.
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