International Journal of Structural and Civil Engineering Research, cilt.2, 2013 (Hakemli Dergi)
In concrete and asphalt concrete, the shape (roundness) of aggregate particles has been related
to durability, workability, shear resistance, tensile strength, stiffness, and fatigue response. The
aggregates are constantly subjected to harsh environmental conditions and external forces
including static and dynamic loads. As a result, these materials experience various levels of
abrasion. Hence, alteration of aggregate roundness with different chemical and mechanical
effects is important for engineers. In this research, 40 basalt and calcareous aggregate samples
are prepared with different abrasion methods and the roundness of samples is determined
using image analysis. As a result, calcareous aggregate is significantly affected from the abrasion
methods but basalt aggregate is not.