Abstract
In study, basalt, which is frequently used in highways, was used as coarse-fine aggregate and control filler. Limestone and volcanic slag were used as alternative filler materials. After determining the physical, chemical and mechanical properties of the aggregates, Marshall stability test was carried out using bitumen at the rate of 4,5, 5, 5,5 6, 6,5% in appropriate gradation. A total of 45 samples were casted as 3 samples per bitumen percentage. After determining the optimum bitumen percentage, used samples basalt, limestone and volcanic slag were compared according to the highway technical specifications. As a result of the study, it was determined that limestone fillers can be used as alternative fillers because they reduce the optimum bitumen rate, do not exceed the limit value according to the methylene blue test result and there are many limestone quarries in the region.