Natural fibres and polymers selection with a combination of asphalt mixture based on mechanical and physical properties

Muhammad Sabri, Muhammad Fikri (2022) Natural fibres and polymers selection with a combination of asphalt mixture based on mechanical and physical properties. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Road was designed and built for people to go to work, travel, and vacation. However, even roads can reach their limits and be damaged. Potholes, in general, are bowl-shaped holes in the surface of asphalt road pavement and their presence will bring dangerous situation to users, drivers or riders. Potholes are repaired by filling the damaged area with an asphalt mixture. However, the fix is temporary, and they are prone to damage. This is due to the quality of asphalt pavement. There have been a few studies about on how to increase the performance of potholes repair where researchers and experts have state that combining natural fibres and polymers with asphalt mixture can improve their performance. Thus, there are a lot of natural fibres and polymers that can be used to be mix in the asphalt mixture. The list of natural fibres and polymers to be evaluated are coconut, jute, hemp, sisal fibres and Polypropylene (PP), High-Density Polyethylene (HDPE), Polystyrene (PS), Polyethylene Terephthalate (PET) respectively. Therefore, this paper is to provide a case study on the material selection of natural fibres and polymers based on design requirements by focusing on the physical and mechanical properties of natural fibres, polymers and asphalt mixtures. Then, to compare the results of natural fibres and polymers by using two different methods which are Pugh Decision Matrix and Grey Relational Analysis (GRA). The results shows the highest ranking score for natural fibre and polymer are jute fibre and Polyethylene Terephthalate (PET) from Pugh Decision Matrix analysis. From the Grey Relational Analysis (GRA), the highest ranking score for natural fibre and polymer are hemp fibre and Polyethylene Terephthalate (PET). Based on these two method analysis which are Pugh Decision Matrix and Grey Relational Analysis (GRA), jute fibre, hemp fibre and Polyethylene Terephthalate (PET) are selected as the best natural fibre and polymer to combine with asphalt mixture.

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