FROM AGRICULTURAL WASTE TO CONSTRUCTION INNOVATION: PEANUT SHELLS AS SUSTAINABLE REINFORCEMENTS IN COMPOSITE MATERIALS

Abstract

This research investigates the use of peanut shells as sustainable reinforcements in green composite materials, with a focus on their application in mortars to improve durability and mechanical properties. The significance of this research lies in developing a performance assessment framework for these environmentally friendly composite materials and in the effort to enhance manufacturing standards. Experimental methods were employed to assess flexural strength, compressive strength, water absorption, and density of mortar samples containing varying proportions of peanut shell powder, classified as vegetable powders and vegetable particles. Findings indicate that vegetable powders significantly enhance flexural strength, while vegetable particles improve compressive strength, although excessive dosages can negatively affect performance. Optimal dosages were identified to maximize benefits, with vegetable powders generally performing better than vegetable particles, except at a 2% dosage. Furthermore, the inclusion of peanut shells reduced water absorption, enhancing waterproofing properties. These results demonstrate the potential of peanut shells as sustainable reinforcements, contributing to reduced environmental impact and improved material performance. This research supports global sustainability goals by promoting the recycling of agricultural waste and reducing dependence on traditional materials, offering a viable approach for greener construction practices.