The Characteristics of Asphalt Concrete Binder Course (AC-BC) Mixture with Bottom Ash as Aggregate Substitute
Abstract: Highways serve
nearly 80-90% of the population mobility and flow of goods. Utilization of
bottom ash, a waste from coal combustion, in highway construction is one of the
alternatives to reduce environmental pollution and support Clean Development
Mechanism Program of Kyoto Protocol. The aim of this study is to analyze the
characteristics of AC-BC mixture that uses bottom ash as partial substitute of
fine aggregate and comparing with a standard mixture. Laboratory tests are
performed on two different types of mixtures. The tests show that optimum
asphalt content for AC-BCStandard mixture is 5.20% while AC-BCBottom Ash
mixture is 5.25%. Bottom ash has higher porosity along with a little break
field and has round shape so that the asphalt absorption is bigger than the
crushed stone. Bottom ash can be used as an alternative aggregate to increase
the value of flow of the AC-BC mixture, thus converting waste to valuable
material.
Author: Sugiyanto G., Harmawan
A., Mulyono B
Journal Code: jptsipilgg150008
