Bituminous Mixtures Properties Using Different Aggregate Types

Mineral aggregate constitutes approximately 95% of hot-mix asphalt by weight. Thus, it
contributes a lot to the characteristic of bituminous mixtures. For materials of such
importance, there is a literature gap on the properties of aggregates obtained from primary
sources of aggregates in Malaysia – rock quarries. This study is to determine bituminous
mixture properties using aggregates from four different quarries which are Mukim Sungai
Raya, Kampar, Lahat and Kampung Keramat Pulai, and their suitability to use them in
Malaysian road construction. Los Angeles abrasion value, aggregate impact, water
absorption capacity and specific gravity tests were conducted to determine the mechanical
and physical properties of the aggregates. Then the percentage of voids in total mix, voids in
mineral aggregates, specific gravity, Marshal Stability and flow of the bituminous mix
sample prepared from each quarry were determined. The results were analysed by comparing
the stability, flow and percentage of voids in total mix to the Jabatan Kerja Raya (JKR)
standards. The properties of the aggregates were also compared to the JKR requirements.
The results showed that aggregates from Kamput Keramat Pulai satisfy all the JKR
(Malaysian Pavement Design Manual) specifications.