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Performance Evaluation of Grated Coconut Waste as a Bitumen Modifier Mior Sani, Wan Noor Hin; Wan Ahmad Sofian, Wan Mohamad Faizrul Hakimi; Mohd Amin, Syarini; Mahmud, Mohd Zul hanif; Rogo, Kabiru Usman; Hashim, Mohd Hazree
Disaster in Civil Engineering and Architecture Vol. 1 No. 1: October 2024
Publisher : Popular Scientist

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70028/dcea.v1i1.10

Abstract

Coconut is extensively utilized in everyday existence, with around 3.18 million tonnes of waste, including grated coconut, being generated. Utilizing grated coconut waste as an ingredient in bitumen could alleviate the challenges encountered by environmental authorities. This study aimed to examine the impact of grated coconut waste on the characteristics of bitumen and evaluate its performance in the bitumen mixture. A mixture of bitumen 60/70 penetration grade and grated coconut waste was created, with varying percentages of 0%, 1%, 2%, and 3%. The mechanical qualities of grated coconut waste as a bitumen modifier were assessed using several tests, including the indirect tensile strength test and the Marshall stability test. The physical and mechanical characteristics of grated coconut waste as a modifier for bitumen were assessed utilizing tests for softening point test and penetration test. Based on this study, the findings for physical properties of penetration and softening point test, the used up until 3% grated coconut waste can give effect to the bitumen stiffness. One of the more significant findings to emerge from this study is that higher stability and tensile strength of 1% grated coconut waste at 10420 N and 271 kPa, respectively. In conclusion, the used of 1% grated coconut waste as a bitumen modifier resulted the positive effect to the physical properties and mechanical properties of the bitumen mixture.
Exploring the Potential of Waste Cooking Oil in Enhancing Warm Mix Asphalt Performance Hamzah, Ahmad Mujahid; Mior Sani, Wan Noor Hin; Mawardi, Indra; Yacoob, Haryati; Rogo, Kabiru Usman; Hashim, Mohd Hazree
Disaster in Civil Engineering and Architecture Vol. 2 No. 1: April 2025
Publisher : Popular Scientist

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70028/dcea.v2i2.23

Abstract

The growing need for sustainable materials in road construction has led to the investigation of waste cooking oil (WCO) as a modifier for warm mix asphalt (WMA). This study evaluates the effects of chemically treated WCO on the mechanical properties of WMA, focusing on stability, resilient modulus, and dynamic creep performance. WCO was treated through transesterification and incorporated into 60/70 penetration grade asphalt at various dosages (0%, 3%, 4%, and 5% by weight of asphalt). The results showed that a 3% WCO-modified asphalt achieved the highest stability and acceptable resilient modulus, while maintaining satisfactory rutting resistance. Higher WCO content led to reduced stiffness and creep performance due to excessive softening. The study concludes that treated WCO can enhance WMA performance when used in optimal amounts, contributing to sustainable pavement practices.