STUDY ON MIX DESIGN PROCEDURES FOR HYBRID ASPHALT MIXTURE

Abstract

Structural formation of mix and its realizing mix procedure for hybrid asphalt mix, that enables porous texture for surface and denseness for inside in the field were studied. As a result, it was found that steel roller compaction is contributable to the pillar structure and that asphalt mortar run-off can be controlled by kinematic viscosity of asphalt and gradation of sand particles.
Moreover several mix standards for the hybrid were suggested, including packing density measurement for surface and conventional apparent density measurement for inside.