Improvement of the method for determining the compaction coefficient of asphalt concrete mixture

Problem Statement. During sample preparation for reforming, there is a separation of cut mineral materials, which can affect the composition of the asphalt concrete mixture and lead to significant differences compared to the actual composition. The analysis of foreign sources revealed that the compaction coefficient is determined by the ratio of the average density of cores to the average density of samples made from the mixture used for constructing the road layer. A historical review of regulatory documents shows that the domestic method for determining the compaction coefficient has been in use for over 40 years. Additionally, a literature review found that this issue has not been adequately addressed. Thus, there is a need to study the effect of cut mineral material separation on the properties of reformed samples and the value of the compaction coefficient. Objective. To improve the method for determining the compaction coefficient of asphalt concrete mixture.