The influence of the position of the sealing equipment on the degree of compaction of the material at the joints of the new and old asphalt concrete pavement

Abstract

The article considers the problem of the influence of the position of sealing equipment on the degree of compaction of the material at the joints of new and old asphalt concrete pavement. The study of the optimal sealing method at the joints will make the asphalt concrete coating more durable. The main subject of the study is the amount of overlap and the types of stamps used to seal. At the first stage, the sealing was carried out with a cylindrical die equivalent to a smooth roller. It is necessary to identify the rational shape of the sealing stamp for the joints and obtain the maximum compaction coefficient, as well as the unity of the structure of the asphalt concrete layer. A stand has been developed that simulates the sealing of the mixture depending on the position of the stamp at the joints. The theoretical and practical objectives of the study included a review of existing types of joints, design and creation of a stand to study the best position of the roller relative to the joint, determination of the mass of the material extending beyond the joint during sealing, determination of the density of the material.