Highly visco-elastic warm-mix modifier composition and their manufacturing method thereof; and compositions of virgin and recycled modified warm-mix asphalt concrete mixtures and their manufacturing method thereof

Abstract

The first priority of this invention is to provide the composition and the manufacturing method of a novel highly visco-elastic warm-mix modifier that can be added to asphalt binders for the purpose of reducing environmental pollution, saving natural resources by recycling RAP aggregates, reducing construction cost, and minimizing maintenance cost by extending pavement life-cycle. The highly visco-elastic warm-mix modifier may be manufactured by adding highly viscous and general purpose polymers to elastic polymers in the warm mix modifier. Warm mix additives, including waxes, oils and elastic materials, may also be introduced to the highly visco-elastic warm-mix modifier. In more details, the invention is characterized to manufacture the novel modified recycled (or regular) warm-mix asphalt concrete mixture by heating and mixing 0.5-20 weight parts of the highly visco-elastic warm-mix modifier.

Dependencies are inferred from the claim text.