Abstract
The effect of additions of organically modified clay and a sulfur-based compound on the technological, as well as rheological properties of a conventional asphalt that was modified by a linear styrene–butadiene–styrene block copolymer, was studied via three factors and five levels of statistical experiment. Blends were prepared with conventional physical mixing. The linear viscoelastic properties of asphalt binders were studied in small-amplitude sinusoidal oscillations by a dynamic shear rheometer, and the low-temperature properties of the tested polymer modified asphalts were determined from their creep characteristics measured in a bending beam rheometer. In particular, it was shown that the organoclay had a positive influence on rheological properties of the studied systems, specifically on service temperatures.
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