Abstract

This paper contains tests methods and analysis results of rubber modified asphalts and rubber modified bituminous mixtures. Two types of road asphalts were tested – hard and soft asphalt. The influence of rubber additive on rheological properties of these asphalts were analyzed. Positive effects of modification were recorded. Modified asphalts were used to design new materials – Stone matrix asphalts (SMA), with rubber modification. These materials were tested on rutting, fatigue and water resistant. Tests results were compared to technical requirements for SMA layers, which are used in Poland. It was found that rubber modified stone matrix asphalts had better properties that conventional materials and they could be implemented to road engineering.

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