Recycled Materials Reinforced by Geopolymer from Bagasse Ash and Recycled Plastic for Sub-Base and Base Material
Keywords:
Geopolymers, Bagasse ash, Recycled plastic stripsAbstract
Research investigated the possibility of recycling materials from the pavement instead of the natural aggregate. Two recycled materials as recycled asphaltic pavement (RAP) and recycled crushed rock (RCR) from the pavement, were investigated. These recycled materials were stabilized by using geopolymers from bagasse ash. Moreover, these recycled materials were reinforced by recycled plastic strips from plastic waste. Therefore, this study was to study the effect of the mixture ratios between RAP: RCR, the percentage of bagasse ash, the concentration of NaOH in alkaline solution, size and mass of recycled plastic sheets for the base and sub-base material according to the Department of Highways' standards. It was found that the suitable mix ratio for a base and sub-base material was a 1:1 ratio between RCR and RAP, five percent of bagasse ash, and 7.5 percent of an alkaline solution by weight. Moreover, the suitable amount of the plastic strip is 0.025 to 0.1 percent by weight in the size of 2 centimeters in width, 6 centimeters in length, and 0.5centimeters in width, 3 centimeters in length. This material will help reduce the destruction of natural resources and the amount of residual waste from plastic bags in the country.
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