ABSTRACT

Asphalt is a pavement material that works as an aggregate binder and filler Natural polymer in the form of cellulose from banana stem leaves has the potential to be used as an alternative material added on asphalt to increase the quality of asphalt itself. The reason for the use of cellulose from banana stem is because it is easy to get and can reduce waste of banana stem. The design of the specimens used pure asphalt pen 60/70 mixed with banana stems fiber powder. Percentage of additive material were 0%; 0.1%; 0.2%; 0.3%; and 0.4% of the asphalt weight. The specimens made for each physical asphalt test were three samples. The results of the analysis and discussion found that the additional banana stems fiber powder on the pure asphalt produced an increase in physical characteristics of asphalt. The optimal percentage of adding banana stems fiber powder was obtained at 0.1% percentage since all test values fulfilled the 60/70 asphalt requirement. The additional banana stems fiber powder of 0.1% resulted in a decrease in penetration value from 70.7 (0.1 mm) to 67.4 (0.1 mm), ductility value from 146 cm to 102.3 cm, weight loss from 0 , 14% to 0.09%, and the specific gravity from 1.042 to 1.037. The additional banana stems fiber powder with asphalt resulted in an increase of softening point from 44.2 º C to 44.7 º C, the viscosity value from 300.99 cst to 320.80 cst.