EFFECT OF VISCOELASTIC BEHAVIOR OF CELLULOSE OIL PALM FIBER (COPF) MODIFIED 60-70 ASPHALT BINDER FOR DETERIORATION FOR ROADS AND HIGHWAYS
DOI:
https://doi.org/10.11113/jt.v75.5294Keywords:
Cellulose oil palm fiber, rheological properties, deterioration, viscoelastic, complex shear modulus (G*), short and long term aging.Abstract
This paper dealt with the viscoelastic behavior of Cellulose Oil Palm Fiber (COPF) modified 60-70 penetration grade asphalt binder for the deterioration of roads. The main objective of this study was to investigate the effect of various COPF contents on the physical and the rheological properties of penetration grade 60-70 asphalt binder. Laboratory tests performed comprised of viscosity, penetration, softening point, short & long term ageing, as well as complex shear modulus (G*). The COPF was blended in 0.2, 0.4, 0.6, 0.8, and 1.0% by weight of asphalt binder, including 0% as control. The COPF modified asphalt binder showed an increasing viscosity and softening point with the increase of COPF content, whereas the penetration decreased as the COPF was increased for the binder. The complex shear modulus (G*), rutting factor (G*/sin δ), and fatigue factor (G*sin δ) showed significant improvement for the modified samples compared to the unmodified samples. The results indicated that the COPF modified asphalt binder had high potential to resist permanent (rutting) deformation and fatigue cracking than the unmodified sample.Â
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