EVALUATION OF MECHANICAL PROPERTIES OF RICE HUSK ASH MODIFIED SMA-13 ASPHALT MIXTURE
Using rice husk ash(RHA)in asphalt pavements offers valuable benefits such as reducing environmental degradation and conserving natural resources.This study investigates the effect of RHA as an asphalt modifier on hot mix asphalt.Modified asphalt was prepared by mixing asphalt with 5%,10%,15%,and 20%RHA.Tests were conducted for penetration,ductility,softening point,and rotational viscosity.Additionally,the mechanical properties of asphalt mixtures,including Marshall stability,rutting resistance,and fatigue performance,were evaluated.The re-sults show that adding RHA improves the rheological properties of asphalt and has a positive impact on Marshall sta-bility,rutting resistance,and fatigue performance of asphalt mixtures.The findings provide experimental guidance for the resource utilization of rice husk ash.
万方数据
维普
