Abstract
The article discusses the issue of increasing the frost resistance of asphalt concrete with aggregate on the basis of the enriched blast furnace slag by introducing microsilica into bitumen binder. The purpose of the study is to evaluate the effect of enriched slag aggregate and microsilica on the frost resistance of asphalt concrete pavement intended for operation in a continental climate. Methods of laboratory preparation of asphalt concrete mixtures, frost resistance tests, mathematical processing of experimental data were used. It has been established that the use of enriched slag aggregate in combination with the addition of 12% of the microsilica by weight of bitumen increases the frost resistance of asphalt concrete. This allows it to be used in a continental climate with frequent repetition of freeze-thaw cycles. The findings contribute to enhancing pavement durability, improving road safety, and reducing the operational wear of vehicle chassis systems