Effect of viscoelastic behaviour of cellulose oil palm fiber (COPF) modified 60-70 asphalt binder for deterioration for roads and highways

Abstract

This paper dealt with the viscoelastic behaviour of Cellulose Oil Palm Fiber (COPF) modified 60-70 penetration grade asphalt binder for the deterioration of roads. The main objective of this study is to investigate the effect of various COPF content on the physical and rheological properties of penetration grade 60-70 asphalt binder. Laboratory tests performed comprises of viscosity, penetration, softening point, short & long term ageing and 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 increase of COPF content, whereas penetration decreases as the COPF increases for the binder. The complex shear modulus (G*), rutting factor (G*/sin δ) and fatigue factor (G*sin δ) show significant improvement for the modified samples compared to unmodified samples. The results indicated that the COPF modified asphalt binder has high potential to resist permanent (rutting) deformation and fatigue cracking than the unmodified sample.