Rubber and rubber-polymer modifiers of asphalt concrete mixtures produced by method of high-temperature shear grinding. Part 2. Methodology for effectiveness evaluation of modifiers

Abstract

The analysis of the modern regulatory framework for quality testing of bituminous binders has been carried out. A methodology for effectiveness evaluation of powder modifiers introduced into asphalt concrete mixtures according to «Russian dry process» was proposed. It is based on rheological tests of «model binders» (MB). The set of tests and standard indicators in a wide temperature range were determined. A new indicator for evaluation of the binder quality is proposed. It is destruction temperature of bituminous binders during fatigue tests.