Abstract:
In Malaysia, common pavement is using flexible pavement. But, the flexible pavement is easily failure like
cracking or fatigue. Besides that, the flexible pavement also provide short service life. The expected long
life of the flexible pavement is around 40 years but normally the overlay will be applied after the 20 years
to carry the predicted over the next 20 years to ensure the good condition of pavement. Thus, the wearing
course of flexible concrete will be focus and study to modify or create a good standard wearing course in
this study. To modify the wearing course, the design mix of asphalt concrete will be carried out with
replace High Density Polyethylene (HDPE) in the asphalt concrete. HDPE is a thermoplastic polymer made
from petroleum. As one of the most versatile plastic materials around, HDPE plastic is used in a wide
variety of applications, including plastic bottles and shampoo bottles. The purpose of study is to determine
strength of innovation bitumen by replacing 1.5% , 3% , 4.5% and 6% HDPE plastic and to analyze the
comparison of ordinary bituminous properties. The result of study will be more focus at find out the
optimum HDPE plastic content which are replacing in asphalt concrete. In conclusion, the optimum and
appropriate HDPE plastic is 1.5% which are provide the highest stability, ductility, softening point, flash
point, penetration and medium flow when compared to 3% , 4.5% and 6% HDPE plastic.
