Abstract
Special asphalt mixtures are now used as much as continuously graded mixture. The method for mixture design described in the MANUAL FOR ASPHALT PAVEMENT and GUIDE FOR DRAINAGE PAVEMENT may not apply to all types of asphalt mixtures. In addition, the properties of asphalt mixtures are influenced by the quantity of asphalt mortar and filler bitumen. Therefore, consideration of these factors is desirable for improved mixture design.
In this study, the ratio of asphalt mortar volume to coarse aggregate void volume and the ratio of filler bitumen volume to fine aggregate void volume were defined as design factors, to examine wheher these design factors can be used to predict the properties of the asphalt mixtures. The results clearly showed that the properties of dense-graded, dense gap-graded and open-graded asphalt mixtures could be predicted effectively by these factors. Custom, effective mixture design of asphalt mixtures can be achieved based on these factors.
