Potential of Palm Oil Fuel Ash, Garnet Waste and Sawdust in Modified Asphalt Binder and Their Correlation

Author:

Sani Wan Noor Hin Mior1,Jaya Ramadhansyah Putra2ORCID,Masri Khairil Azman1,Yaacob Haryati3,Al-Saffar Zaid Hazim4

Affiliation:

1. University Malaysia Pahang: Universiti Malaysia Pahang Al-Sultan Abdullah

2. Universiti Malaysia Pahang: Universiti Malaysia Pahang Al-Sultan Abdullah

3. Universiti Teknologi Malaysia

4. Northern Technical University

Abstract

Abstract

Recently, the volume and growth of industrial as well as agricultural waste have caused environmental pollution. However, this issue can be mitigated through recycling and reutilization of such waste products. Therefore, this paper evaluated the potential of Palm Oil Fuel Ash (POFA), garnet waste, and sawdust as sustainable modified asphalt binders and mixtures as a substitute strategy to encourage waste recycling in road pavement construction. POFA, garnet waste, and sawdust were blended with asphalt grade 60/70 with varied amounts of 0% (control), 3%, 6%, and 9%. Moreover, Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-Ray Fluorescence (XRF), as well as X-Ray Diffraction (XRD) were utilized to analyze the microstructures of raw waste materials. The physical characteristics with regard to the modified asphalt binder were determined by employing softening point and penetration tests. Consequently, the modified asphalt mixture was assessed using the Marshall stability test. Specifically, adding 6% POFA, 3% garnet waste, and 3% sawdust performs best in stability as a modified asphalt mixture. The correlation of stability, flow, bulk density, and stiffness for POFA, garnet waste, and sawdust modified asphalt mixture was significant, with a strong Coefficient of Determination (R2) for all Marshall stability parameters. According to this study’s results, the correlation of POFA, garnet waste, and sawdust content may improve the performance and engineering characteristics with respect to modified asphalt binder and mixture.

Publisher

Research Square Platform LLC

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